mirror of
git://slackware.nl/current.git
synced 2024-12-27 09:59:16 +01:00
0807d59d4d
n/httpd-2.4.51-x86_64-1.txz: Upgraded.
SECURITY: CVE-2021-42013: Path Traversal and Remote Code
Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete
fix of CVE-2021-41773) (cve.mitre.org)
It was found that the fix for CVE-2021-41773 in Apache HTTP
Server 2.4.50 was insufficient. An attacker could use a path
traversal attack to map URLs to files outside the directories
configured by Alias-like directives.
If files outside of these directories are not protected by the
usual default configuration "require all denied", these requests
can succeed. If CGI scripts are also enabled for these aliased
pathes, this could allow for remote code execution.
This issue only affects Apache 2.4.49 and Apache 2.4.50 and not
earlier versions.
Credits: Reported by Juan Escobar from Dreamlab Technologies,
Fernando MuA+-oz from NULL Life CTF Team, and Shungo Kumasaka
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42013
(* Security fix *)
308 lines
12 KiB
Bash
Executable file
308 lines
12 KiB
Bash
Executable file
#!/bin/bash
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# Copyright 2018, 2020, 2021 Patrick J. Volkerding, Sebeka, Minnesota, USA
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# All rights reserved.
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#
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# Redistribution and use of this script, with or without modification, is
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# permitted provided that the following conditions are met:
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#
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# 1. Redistributions of this script must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Create a buildlist for make_world.sh from the most recent ChangeLog entry.
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# Optionally pass the SECTIONS= variable to build the list from more sections
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# than just the most recent one. For example, create a buildlist for the top
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# two sections:
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#
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# CHANGELOG=/my/slackware/directory/ChangeLog.txt SECTIONS=2 buildlist-from-changelog.sh > buildlist
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#
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# Or, you can make a buildlist containing everything that is more recent than
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# a certain timestamp in the ChangeLog. For example, to build everything that
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# appears in the ChangeLog above the timestamp "Thu Apr 19 01:04:06 UTC 2018":
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#
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# CHANGELOG=/my/slackware/directory/ChangeLog.txt NEWERTHAN="Thu Apr 19 01:04:06 UTC 2018" buildlist-from-changelog.sh > buildlist
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#
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# If you've already upgraded to the official binaries listed in the ChangeLog,
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# you should be able to recompile them locally in one pass without errors.
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# Otherwise, if you are bootstrapping these updates it is recommended to build
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# from the buildlist until everything is successfully built, and then one more
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# time using FORCE_BUILD=yes.
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# This should be the only option that you'll need to set to use a different
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# ChangeLog. However, if the ChangeLog is not sitting in a full Slackware
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# directory, you will need to provide a valid $SLACKROOT.
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CHANGELOG=${CHANGELOG:-../ChangeLog.txt}
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# Figure out the SLACKROOT from the ChangeLog path:
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SLACKROOT=${SLACKROOT:-$(dirname $CHANGELOG)}
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# Set the SLACKSRC directory:
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SLACKSRC=${SLACKSRC:-${SLACKROOT}/source}
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# Set the SLACKPKGS directory:
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if [ -d ${SLACKROOT}/slackware64 ]; then
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SLACKPKGS=${SLACKPKGS:-${SLACKROOT}/slackware64}
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elif [ -d ${SLACKROOT}/slackware ]; then
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SLACKPKGS=${SLACKPKGS:-${SLACKROOT}/slackware}
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else
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echo "FATAL: package directory not found."
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exit 1
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fi
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# How many sections of the ChangeLog to output:
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SECTIONS=${SECTIONS:-1}
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# If we have $NEWERTHAN, we'll consider up to 30 sections before giving up if
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# we don't see that timestamp:
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if [ ! -z "$NEWERTHAN" ]; then
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SECTIONS=30
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fi
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# Find the short package name of a package or packages:
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pkgname() {
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for package in $* ; do
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echo $(basename $package) | sed 's?-[^-]*-[^-]*-[^-]*$??'
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done
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}
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# Find a .txz package under $SLACKROOT, given a (possibly short) package name:
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findpkg() {
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PKG_FOUND=false
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for testpkg in $SLACKPKGS/*/$(pkgname $1)*.txz ; do
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if [ "$(pkgname $1)" = "$(basename $testpkg | sed 's?-[^-]*-[^-]*-[^-]*$??')" ]; then
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echo $testpkg
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PKG_FOUND=true
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break
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fi
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done
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if [ "$PKG_FOUND" = "false" ]; then
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exit 1
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fi
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}
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# Make a temporary directory:
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TMPDIR=$(mktemp -d)
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# Output buildlist header:
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if head -n 1 $CHANGELOG | grep -q " UTC 20" ; then
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if [ "$SECTIONS" = "1" ]; then
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echo "# buildlist generated from ChangeLog: $(head -n 1 $CHANGELOG)" > $TMPDIR/header
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else
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if [ -z "$NEWERTHAN" ]; then
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echo "# buildlist generated from ChangeLog ($SECTIONS sections): $(head -n 1 $CHANGELOG)" > $TMPDIR/header
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else
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echo "# buildlist generated from ChangeLog: $(head -n 1 $CHANGELOG), until timestamp $NEWERTHAN found" > $TMPDIR/header
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fi
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fi
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else
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echo "# buildlist generated from ChangeLog (no timestamp - unclosed)" > $TMPDIR/header
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fi
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echo "#" >> $TMPDIR/header
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SECFOUND=0
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cat $CHANGELOG | while IFS= read -r line ; do
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if [ ! -z "$NEWERTHAN" ]; then
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if [ "$line" = "$NEWERTHAN" ]; then
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break
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fi
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fi
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echo "$line"
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if [ "$line" = "+--------------------------+" ]; then
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SECFOUND=$(expr $SECFOUND + 1)
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if [ "$SECTIONS" = "$SECFOUND" ]; then
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break
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fi
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fi
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done | tac | while IFS= read -r line ; do
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#if echo "$line" | grep -q -e "^extra/" -e "^isolinux/" -e "^usb-and-pxe-installers/" -e "^kernels/" -e "^a/kernel-generic" -e "^a/kernel-huge" -e "^a/kernel-modules" -e "^d/kernel-headers" -e "^k/kernel-source" ; then
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if echo "$line" | grep -q -e "^extra/" -e "^isolinux/" -e "^usb-and-pxe-installers/" -e "^kernels/" ; then
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# We don't handle these files, but output it anyway (commented out):
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echo "# $line" >> $TMPDIR/packages
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if [ -r $TMPDIR/blurbcollect ]; then
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cat $TMPDIR/blurbcollect | tac >> $TMPDIR/packages
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rm -f $TMPDIR/blurbcollect
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fi
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elif echo "$line" | grep -q -e ": Upgraded.$" -e ": Rebuilt.$" -e ": Added.$" ; then
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# Output the name of the matching built package under ${SLACKPKGS}.
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PACKAGE=$(findpkg $(echo $line | cut -f 1 -d :) | rev | cut -f 1,2 -d / | rev)
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if echo $PACKAGE | grep -q "^a/aaa_libraries" ; then
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# The aaa_libraries package must be build last, so put it in its own list:
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LISTPKG=aaa_libraries
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elif echo $PACKAGE | grep -q "^kde/" ; then
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# KDE packages should be built after all sobumps and normal packages:
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LISTPKG=kde
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elif echo $PACKAGE | grep -q "^d/perl" ; then
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# If we see perl, build it right after any sobumps:
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LISTPKG=perl
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elif echo $PACKAGE | grep -q -e "^a/kernel-generic" -e "^a/kernel-huge" -e "^a/kernel-modules" -e "^d/kernel-headers" -e "^k/kernel-source" ; then
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# All these kernel packages are no-ops for make_world.sh.
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LISTPKG=kernel
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else
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# All other packages go in the "packages" list:
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LISTPKG=packages
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fi
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# If the blurb mentions an .so-version bump, but that in a list to be
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# built first:
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if [ -r $TMPDIR/blurbcollect ]; then
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if cat $TMPDIR/blurbcollect | grep -q "Shared library .so-version bump." ; then
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# This package needs to be build first since others might depend on it.
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# Send it to the sobumps list:
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LISTPKG=sobumps
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fi
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fi
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if [ ! -z $PACKAGE ]; then
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echo "# $line" >> $TMPDIR/$LISTPKG
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if [ -r $TMPDIR/blurbcollect ]; then
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cat $TMPDIR/blurbcollect | tac >> $TMPDIR/$LISTPKG
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rm -f $TMPDIR/blurbcollect
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fi
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echo $PACKAGE >> $TMPDIR/$LISTPKG
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else
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echo "# NOT FOUND: $line" >> $TMPDIR/packages
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if [ -r $TMPDIR/blurbcollect ]; then
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cat $TMPDIR/blurbcollect | tac >> $TMPDIR/packages
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rm -f $TMPDIR/blurbcollect
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fi
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fi
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elif echo "$line" | grep -q ": Removed.$" ; then
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# If the line is for a : Removed. package, then output it to the list,
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# commented out:
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echo "# $line" >> $TMPDIR/packages
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if [ -r $TMPDIR/blurbcollect ]; then
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cat $TMPDIR/blurbcollect | tac >> $TMPDIR/packages
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rm -f $TMPDIR/blurbcollect
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fi
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elif echo "$line" | grep -q "^ " ; then
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echo "# $line" >> $TMPDIR/blurbcollect
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fi
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done
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# If $TMPDIR/kernel exists, put a header at the top and then comment the
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# rest of it out:
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if [ -r $TMPDIR/kernel ]; then
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cat << EOF > $TMPDIR/kernel.tmp
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# Kernel packages are not handled by make_world.sh.
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# To build these kernel packages, go to the source/k directory and run:
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# ./build-all-kernels.sh
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# If glibc appears in this buildlist, you may want to build the kernels
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# before building this list to make sure that glibc is built against the
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# kernel headers. This doesn't really matter most of the time, though.
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# if gcc appears in this buildlist, then you *absolutely must* build the
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# kernels after this buildlist is complete so that they are built with
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# the new compiler.
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EOF
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cat $TMPDIR/kernel | while IFS= read -r line ; do
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if [ ! "$(echo $line | cut -b 1)" = "#" ]; then
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echo "# $line" >> $TMPDIR/kernel.tmp
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else
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echo "$line" >> $TMPDIR/kernel.tmp
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fi
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done
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echo "#" >> $TMPDIR/kernel.tmp
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mv $TMPDIR/kernel.tmp $TMPDIR/kernel
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fi
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# Convert the buildlist from *.txz packages to SlackBuilds:
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cat $TMPDIR/header $TMPDIR/kernel $TMPDIR/sobumps $TMPDIR/perl $TMPDIR/packages $TMPDIR/kde $TMPDIR/aaa_libraries 2> /dev/null | while IFS= read -r line ; do
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if echo "$line" | grep -q "^#" ; then
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# Commented out line:
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echo "$line" >> $TMPDIR/output
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continue
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fi
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SERIES=$(dirname $line)
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PACKAGE=$(pkgname $line)
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# Search SlackBuilds that start with that name:
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SEARCHFOUND=false
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for searchdir in $SLACKSRC/*/$(echo $PACKAGE | cut -f 1 -d -)* ; do
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testbuild=$searchdir/$(basename $searchdir).SlackBuild
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if [ ! -x $testbuild ]; then
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continue
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else
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for packagecompare in $(pkgname $(PRINT_PACKAGE_NAME=yes $testbuild | tr " " "\n")) ; do
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if [ "$PACKAGE" = "$packagecompare" ]; then
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SEARCHFOUND=true
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OUTPUTLINE=$(echo $testbuild | rev | cut -f 1-3 -d / | rev)
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if grep -q "^${OUTPUTLINE}$" $TMPDIR/output ; then
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echo "#${OUTPUTLINE}" >> $TMPDIR/output
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else
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echo "$OUTPUTLINE" >> $TMPDIR/output
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fi
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continue
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fi
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done
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fi
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if [ "$SEARCHFOUND" = "true" ]; then
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break
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fi
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done
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if [ "$SEARCHFOUND" = "true" ]; then
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continue
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fi
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# Handle special case of KDE package:
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if [ "$SERIES" = "kde" ]; then
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if [ -x $SLACKSRC/kde/kde.SlackBuild ]; then
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KDESB=kde/kde.SlackBuild
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elif [ -x $SLACKSRC/kde/kde/kde.SlackBuild ]; then
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KDESB=kde/kde/kde.SlackBuild
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else
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echo "# UNHANDLED: $line" >> $TMPDIR/output
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continue
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fi
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BUILDOPT="$(grep "^${PACKAGE}$" $(dirname $SLACKSRC/$KDESB)/modules/* | rev | cut -f 1 -d / | rev | head -n 1)"
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echo "$KDESB $BUILDOPT" >> $TMPDIR/output
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continue
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fi
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# Handle special case of aspell-en:
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if [ "$PACKAGE" = "aspell-en" ]; then
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echo "# To rebuild aspell-en, see:" >> $TMPDIR/output
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echo "#../extra/source/aspell-word-lists/aspell-dict.SlackBuild" >> $TMPDIR/output
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continue
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fi
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# If the package is xorg-server-*, output commented buildscripts. We'll let
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# the next test handle the main xorg-server package.
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if [ "$PACKAGE" = "xorg-server-xnest" -o \
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"$PACKAGE" = "xorg-server-xvfb" -o \
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"$PACKAGE" = "xorg-server-xephyr" -o \
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"$PACKAGE" = "xorg-server-xwayland" ]; then
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echo "#x/x11/x11.SlackBuild xserver xorg-server" >> $TMPDIR/output
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continue
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fi
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# If we got here, it's either something built by x11.SlackBuild or it won't be found.
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# Handle special case of package built by x11.SlackBuild:
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if [ "$SERIES" = "x" ]; then
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SEARCHFOUND=false
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SRCDIR=$(basename $(dirname $(/bin/ls $SLACKSRC/x/x11/src/*/${PACKAGE}-* | head -n 1)))
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for packagecompare in $(pkgname $(PRINT_PACKAGE_NAME=yes $SLACKSRC/x/x11/x11.SlackBuild $SRCDIR $PACKAGE | tr " " "\n")) ; do
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if [ "$PACKAGE" = "$packagecompare" ]; then
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SEARCHFOUND=true
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OUTPUTLINE=$(echo $SLACKSRC/x/x11/x11.SlackBuild $SRCDIR $PACKAGE | rev | cut -f 1-3 -d / | rev)
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if grep -q "^${OUTPUTLINE}$" $TMPDIR/output ; then
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echo "#${OUTPUTLINE}" >> $TMPDIR/output
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else
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echo "$OUTPUTLINE" >> $TMPDIR/output
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fi
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continue
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fi
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done
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fi
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# A build script to build this package could not be found:
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if [ "$SEARCHFOUND" = "false" ]; then
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echo "# ERROR: NO BUILD SCRIPT FOUND FOR: $line" >> $TMPDIR/output
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fi
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done
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# Output:
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cat $TMPDIR/output
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rm -rf $TMPDIR
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