Bug 53269 - libxml2: Multiple issues (4.4)
libxml2: Multiple issues (4.4)
Status: CLOSED FIXED
Product: UCS
Classification: Unclassified
Component: Security updates
UCS 4.4
All Linux
: P3 normal (vote)
: UCS 4.4-8-errata
Assigned To: Quality Assurance
Erik Damrose
:
Depends on:
Blocks:
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Reported: 2021-05-17 10:35 CEST by Quality Assurance
Modified: 2021-05-19 18:01 CEST (History)
0 users

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What kind of report is it?: Security Issue
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Max CVSS v3 score: 8.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)


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Description Quality Assurance univentionstaff 2021-05-17 10:35:02 CEST
New Debian libxml2 2.9.4+dfsg1-2.2+deb9u4 fixes:
This update addresses the following issues:
* use-after-free in xmlEncodeEntitiesInternal() in entities.c (CVE-2021-3516)
* heap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c  (CVE-2021-3517)
* use-after-free in xmlXIncludeDoProcess() in xinclude.c (CVE-2021-3518)
* NULL pointer dereference when post-validating mix content parsed in  recovery mode (CVE-2021-3537)
Comment 1 Quality Assurance univentionstaff 2021-05-17 11:00:23 CEST
--- mirror/ftp/4.4/unmaintained/4.4-6/source/libxml2_2.9.4+dfsg1-2.2+deb9u3.dsc
+++ apt/ucs_4.4-0-errata4.4-8/source/libxml2_2.9.4+dfsg1-2.2+deb9u4.dsc
@@ -1,3 +1,11 @@
+2.9.4+dfsg1-2.2+deb9u4 [Mon, 10 May 2021 11:50:45 +0200] Emilio Pozuelo Monfort <pochu@debian.org>:
+
+  * Non-maintainer upload by the LTS team.
+  * CVE-2021-3516: use-after-free in xmlEncodeEntitiesInternal
+  * CVE-2021-3517: heap-based buffer overflow in xmlEncodeEntitiesInternal
+  * CVE-2021-3518: use-after-free in xmlXIncludeDoProcess
+  * CVE-2021-3537: NULL pointer dereference in xmlValidBuildAContentModel
+
 2.9.4+dfsg1-2.2+deb9u3 [Wed, 09 Sep 2020 22:06:27 +0200] Markus Koschany <apo@debian.org>:
 
   * Non-maintainer upload by the LTS team.

<http://piuparts.knut.univention.de/4.4-8/#4482584142248261672>
Comment 2 Erik Damrose univentionstaff 2021-05-18 17:01:27 CEST
OK: yaml
OK: announce_errata
OK: patch
OK: piuparts

[4.4-8] 66ffc08e95 Bug #53269: libxml2 2.9.4+dfsg1-2.2+deb9u4
 doc/errata/staging/libxml2.yaml | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)