mirror of
git://slackware.nl/current.git
synced 2024-12-28 09:59:53 +01:00
1bb03caa09
a/lvm2-2.03.13-x86_64-1.txz: Upgraded.
Reverted to working version.
d/rust-1.56.0-x86_64-1.txz: Upgraded.
l/pipewire-0.3.39-x86_64-1.txz: Upgraded.
n/krb5-1.19.2-x86_64-2.txz: Rebuilt.
[PATCH] Fix KDC null deref on TGS inner body null server.
This fixes an issue where an authenticated attacker can cause a denial of
service in the KDC by sending a FAST TGS request with no server field.
Thanks to nobodino.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37750
(* Security fix *)
x/ibus-m17n-1.4.8-x86_64-1.txz: Upgraded.
x/libinput-1.19.2-x86_64-1.txz: Upgraded.
xap/freerdp-2.4.1-x86_64-1.txz: Upgraded.
This update fixes two security issues:
Improper client input validation for gateway connections allows to overwrite
memory.
Improper region checks in all clients allow out of bound write to memory.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41159
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41160
(* Security fix *)
xap/gftp-2.7.1b-x86_64-1.txz: Upgraded.
extra/php8/php8-8.0.12-x86_64-1.txz: Upgraded.
This update fixes bugs and a security issue:
FPM: PHP-FPM oob R/W in root process leading to privilege escalation.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21703
(* Security fix *)
43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
From d775c95af7606a51bf79547a94fa52ddd1cb7f49 Mon Sep 17 00:00:00 2001
|
|
From: Greg Hudson <ghudson@mit.edu>
|
|
Date: Tue, 3 Aug 2021 01:15:27 -0400
|
|
Subject: [PATCH] Fix KDC null deref on TGS inner body null server
|
|
|
|
After the KDC decodes a FAST inner body, it does not check for a null
|
|
server. Prior to commit 39548a5b17bbda9eeb63625a201cfd19b9de1c5b this
|
|
would typically result in an error from krb5_unparse_name(), but with
|
|
the addition of get_local_tgt() it results in a null dereference. Add
|
|
a null check.
|
|
|
|
Reported by Joseph Sutton of Catalyst.
|
|
|
|
CVE-2021-37750:
|
|
|
|
In MIT krb5 releases 1.14 and later, an authenticated attacker can
|
|
cause a null dereference in the KDC by sending a FAST TGS request with
|
|
no server field.
|
|
|
|
ticket: 9008 (new)
|
|
tags: pullup
|
|
target_version: 1.19-next
|
|
target_version: 1.18-next
|
|
---
|
|
src/kdc/do_tgs_req.c | 5 +++++
|
|
1 file changed, 5 insertions(+)
|
|
|
|
diff --git a/src/kdc/do_tgs_req.c b/src/kdc/do_tgs_req.c
|
|
index 582e497cc9..32dc65fa8e 100644
|
|
--- a/src/kdc/do_tgs_req.c
|
|
+++ b/src/kdc/do_tgs_req.c
|
|
@@ -204,6 +204,11 @@ process_tgs_req(krb5_kdc_req *request, krb5_data *pkt,
|
|
status = "FIND_FAST";
|
|
goto cleanup;
|
|
}
|
|
+ if (sprinc == NULL) {
|
|
+ status = "NULL_SERVER";
|
|
+ errcode = KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN;
|
|
+ goto cleanup;
|
|
+ }
|
|
|
|
errcode = get_local_tgt(kdc_context, &sprinc->realm, header_server,
|
|
&local_tgt, &local_tgt_storage, &local_tgt_key);
|