Bug 53118 - xorg-server: Multiple issues (4.4)
xorg-server: Multiple issues (4.4)
Status: CLOSED FIXED
Product: UCS
Classification: Unclassified
Component: Security updates
UCS 4.4
All Linux
: P3 normal (vote)
: UCS 4.4-7-errata
Assigned To: Quality Assurance
Philipp Hahn
:
Depends on:
Blocks:
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Reported: 2021-04-17 15:00 CEST by Quality Assurance
Modified: 2021-04-21 16:56 CEST (History)
0 users

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Max CVSS v3 score: 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)


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Description Quality Assurance univentionstaff 2021-04-17 15:00:39 CEST
New Debian xorg-server 2:1.19.2-1+deb9u8 fixes:
This update addresses the following issue:
* XChangeFeedbackControl integer underflow leads to privilege escalation  (CVE-2021-3472)
Comment 1 Quality Assurance univentionstaff 2021-04-17 15:27:21 CEST
--- mirror/ftp/4.4/unmaintained/component/4.4-7-errata/source/xorg-server_1.19.2-1+deb9u7.dsc
+++ apt/ucs_4.4-0-errata4.4-7/source/xorg-server_1.19.2-1+deb9u8.dsc
@@ -1,3 +1,12 @@
+2:1.19.2-1+deb9u8 [Thu, 15 Apr 2021 11:15:10 +0100] Chris Lamb <lamby@debian.org>:
+
+  * Non-maintainer upload by the LTS Team.
+  * CVE-2021-3472: Fix an input validation failure in the XInput extension.
+    Insufficient checks on the lengths of the XInput extension's
+    ChangeFeedbackControl request could have lead to out of bounds memory
+    accesses in the X server. These issues can lead to privilege escalation for
+    authorised clients on systems where the X server is running privileged.
+
 2:1.19.2-1+deb9u7 [Wed, 02 Dec 2020 12:31:11 +0100] Emilio Pozuelo Monfort <pochu@debian.org>:
 
   * CVE-2020-14360: buffer overflow on XkbSetMap.

<http://piuparts.knut.univention.de/4.4-7/#4988821390626283326>
Comment 2 Philipp Hahn univentionstaff 2021-04-17 15:53:31 CEST
OK: yaml
OK: announce_errata
OK: patch
OK: piuparts

[4.4-7] 719a688ba6 Bug #53118: xorg-server 2:1.19.2-1+deb9u8
 doc/errata/staging/xorg-server.yaml | 13 +++++++++++++
 1 file changed, 13 insertions(+)