mirror of
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1269f45932
It may look like we're currently experiencing more stuckness, but this will
lead us to Quality. We'll have this release in the can before you know it.
a/aaa_glibc-solibs-2.33-x86_64-5.txz: Rebuilt.
a/aaa_libraries-15.0-x86_64-16.txz: Rebuilt.
Rebuilt to pick up the patched libexpat.so.1.8.3.
a/kernel-firmware-20220124_eb8ea1b-noarch-1.txz: Upgraded.
a/kernel-generic-5.15.16-x86_64-2.txz: Upgraded.
a/kernel-huge-5.15.16-x86_64-2.txz: Upgraded.
-9P_FSCACHE n
9P_FS m -> y
Thanks to peake.
a/kernel-modules-5.15.16-x86_64-2.txz: Upgraded.
a/mkinitrd-1.4.11-x86_64-27.txz: Rebuilt.
mkinitrd_command_generator.sh: properly detect partitions of a RAID device.
Thanks to perrin4869.
a/util-linux-2.37.3-x86_64-1.txz: Upgraded.
This release fixes two security mount(8) and umount(8) issues:
An issue related to parsing the /proc/self/mountinfo file allows an
unprivileged user to unmount other user's filesystems that are either
world-writable themselves or mounted in a world-writable directory.
Improper UID check in libmount allows an unprivileged user to unmount
FUSE filesystems of users with similar UID.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3995
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3996
(* Security fix *)
ap/vim-8.2.4212-x86_64-1.txz: Upgraded.
d/git-2.35.0-x86_64-1.txz: Upgraded.
d/kernel-headers-5.15.16-x86-2.txz: Upgraded.
k/kernel-source-5.15.16-noarch-2.txz: Upgraded.
l/expat-2.4.3-x86_64-2.txz: Rebuilt.
Fix signed integer overflow in function XML_GetBuffer for when
XML_CONTEXT_BYTES is defined to >0 (which is both common and
default). Impact is denial of service or other undefined behavior.
While we're here, also patch a memory leak on output file opening error.
Thanks to marav.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23852
(* Security fix *)
l/fluidsynth-2.2.5-x86_64-1.txz: Upgraded.
l/glibc-2.33-x86_64-5.txz: Rebuilt.
This update patches two security issues:
Unexpected return value from glibc's realpath().
Off-by-one buffer overflow/underflow in glibc's getcwd().
Thanks to Qualys Research Labs for reporting these issues.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3998
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3999
(* Security fix *)
l/glibc-i18n-2.33-x86_64-5.txz: Rebuilt.
l/glibc-profile-2.33-x86_64-5.txz: Rebuilt.
l/tdb-1.4.6-x86_64-1.txz: Upgraded.
x/xf86-input-libinput-1.2.1-x86_64-1.txz: Upgraded.
xap/mozilla-thunderbird-91.5.1-x86_64-1.txz: Upgraded.
This is a bugfix release.
For more information, see:
https://www.mozilla.org/en-US/thunderbird/91.5.1/releasenotes/
xap/vim-gvim-8.2.4212-x86_64-1.txz: Upgraded.
isolinux/initrd.img: Rebuilt.
kernels/*: Upgraded.
usb-and-pxe-installers/usbboot.img: Rebuilt.
123 lines
4.5 KiB
Diff
123 lines
4.5 KiB
Diff
From f7a79879c0b2bef0dadd6caaaeeb0d26423e04e5 Mon Sep 17 00:00:00 2001
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From: Siddhesh Poyarekar <siddhesh@sourceware.org>
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Date: Thu, 13 Jan 2022 11:28:36 +0530
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Subject: [PATCH] realpath: Set errno to ENAMETOOLONG for result larger than
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PATH_MAX [BZ #28770]
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realpath returns an allocated string when the result exceeds PATH_MAX,
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which is unexpected when its second argument is not NULL. This results
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in the second argument (resolved) being uninitialized and also results
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in a memory leak since the caller expects resolved to be the same as the
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returned value.
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Return NULL and set errno to ENAMETOOLONG if the result exceeds
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PATH_MAX. This fixes [BZ #28770], which is CVE-2021-3998.
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Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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(cherry picked from commit ee8d5e33adb284601c00c94687bc907e10aec9bb)
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---
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NEWS | 4 +++
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stdlib/Makefile | 1 +
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stdlib/canonicalize.c | 12 +++++++--
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stdlib/tst-realpath-toolong.c | 49 +++++++++++++++++++++++++++++++++++
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4 files changed, 64 insertions(+), 2 deletions(-)
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create mode 100644 stdlib/tst-realpath-toolong.c
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--- ./NEWS.orig 2021-02-01 11:15:33.000000000 -0600
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+++ ./NEWS 2022-01-24 13:32:24.268678228 -0600
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@@ -118,6 +118,10 @@
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CVE-2019-25013: A buffer overflow has been fixed in the iconv function when
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invoked with EUC-KR input containing invalid multibyte input sequences.
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+ CVE-2021-3998: Passing a path longer than PATH_MAX to the realpath
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+ function could result in a memory leak and potential access of
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+ uninitialized memory. Reported by Qualys.
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+
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The following bugs are resolved with this release:
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[10635] libc: realpath portability patches
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--- ./stdlib/canonicalize.c.orig 2021-02-01 11:15:33.000000000 -0600
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+++ ./stdlib/canonicalize.c 2022-01-24 13:32:24.268678228 -0600
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@@ -400,8 +400,16 @@
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error:
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*dest++ = '\0';
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- if (resolved != NULL && dest - rname <= get_path_max ())
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- rname = strcpy (resolved, rname);
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+ if (resolved != NULL)
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+ {
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+ if (dest - rname <= get_path_max ())
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+ rname = strcpy (resolved, rname);
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+ else
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+ {
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+ failed = true;
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+ __set_errno (ENAMETOOLONG);
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+ }
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+ }
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error_nomem:
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scratch_buffer_free (&extra_buffer);
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--- ./stdlib/Makefile.orig 2022-01-24 13:32:24.268678228 -0600
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+++ ./stdlib/Makefile 2022-01-24 13:32:59.968676254 -0600
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@@ -86,7 +86,7 @@
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tst-makecontext-align test-bz22786 tst-strtod-nan-sign \
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tst-swapcontext1 tst-setcontext4 tst-setcontext5 \
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tst-setcontext6 tst-setcontext7 tst-setcontext8 \
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- tst-setcontext9 tst-bz20544 tst-canon-bz26341
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+ tst-setcontext9 tst-bz20544 tst-canon-bz26341 tst-realpath-toolong
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tests-internal := tst-strtod1i tst-strtod3 tst-strtod4 tst-strtod5i \
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tst-tls-atexit tst-tls-atexit-nodelete
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--- ./stdlib/tst-realpath-toolong.c.orig 2022-01-24 13:32:24.268678228 -0600
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+++ ./stdlib/tst-realpath-toolong.c 2022-01-24 13:32:24.268678228 -0600
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@@ -0,0 +1,49 @@
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+/* Verify that realpath returns NULL with ENAMETOOLONG if the result exceeds
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+ NAME_MAX.
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+ Copyright The GNU Toolchain Authors.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <https://www.gnu.org/licenses/>. */
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+
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+#include <errno.h>
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+#include <limits.h>
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+#include <stdlib.h>
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+#include <string.h>
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+#include <unistd.h>
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+#include <support/check.h>
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+#include <support/temp_file.h>
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+#include <sys/types.h>
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+#include <sys/stat.h>
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+
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+#define BASENAME "tst-realpath-toolong."
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+
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+int
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+do_test (void)
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+{
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+ char *base = support_create_and_chdir_toolong_temp_directory (BASENAME);
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+
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+ char buf[PATH_MAX + 1];
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+ const char *res = realpath (".", buf);
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+
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+ /* canonicalize.c states that if the real path is >= PATH_MAX, then
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+ realpath returns NULL and sets ENAMETOOLONG. */
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+ TEST_VERIFY (res == NULL);
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+ TEST_VERIFY (errno == ENAMETOOLONG);
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+
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+ free (base);
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+ return 0;
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+}
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+
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+#include <support/test-driver.c>
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