openSUSE Security Update: Security update for libxml2 ______________________________________________________________________________

Announcement ID: openSUSE-SU-2021:0764-1 Rating: important References: #1185408 #1185409 #1185410 #1185698 Cross-References: CVE-2021-3516 CVE-2021-3517 CVE-2021-3518 CVE-2021-3537 CVSS scores: CVE-2021-3516 (SUSE): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-3517 (SUSE): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-3518 (SUSE): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-3537 (NVD) : 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-3537 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products: openSUSE Leap 15.2 ______________________________________________________________________________

An update that fixes four vulnerabilities is now available.

Description:

This update for libxml2 fixes the following issues:

- CVE-2021-3537: NULL pointer dereference in valid.c:xmlValidBuildAContentModel (bsc#1185698) - CVE-2021-3518: Fixed a use after free in xinclude.c:xmlXIncludeDoProcess (bsc#1185408). - CVE-2021-3517: Fixed a heap based buffer overflow in entities.c:xmlEncodeEntitiesInternal (bsc#1185410). - CVE-2021-3516: Fixed a use after free in entities.c:xmlEncodeEntitiesInternal (bsc#1185409).

This update was imported from the SUSE:SLE-15:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.2:

zypper in -t patch openSUSE-2021-764=1

Package List:

- openSUSE Leap 15.2 (i586 x86_64):

libxml2-2-2.9.7-lp152.10.12.1 libxml2-2-debuginfo-2.9.7-lp152.10.12.1 libxml2-debugsource-2.9.7-lp152.10.12.1 libxml2-devel-2.9.7-lp152.10.12.1 libxml2-tools-2.9.7-lp152.10.12.1 libxml2-tools-debuginfo-2.9.7-lp152.10.12.1 python-libxml2-python-debugsource-2.9.7-lp152.10.12.1 python2-libxml2-python-2.9.7-lp152.10.12.1 python2-libxml2-python-debuginfo-2.9.7-lp152.10.12.1 python3-libxml2-python-2.9.7-lp152.10.12.1 python3-libxml2-python-debuginfo-2.9.7-lp152.10.12.1

- openSUSE Leap 15.2 (x86_64):

libxml2-2-32bit-2.9.7-lp152.10.12.1 libxml2-2-32bit-debuginfo-2.9.7-lp152.10.12.1 libxml2-devel-32bit-2.9.7-lp152.10.12.1

- openSUSE Leap 15.2 (noarch):

libxml2-doc-2.9.7-lp152.10.12.1

References:

https://www.suse.com/security/cve/CVE-2021-3516.html https://www.suse.com/security/cve/CVE-2021-3517.html https://www.suse.com/security/cve/CVE-2021-3518.html https://www.suse.com/security/cve/CVE-2021-3537.html https://bugzilla.suse.com/1185408 https://bugzilla.suse.com/1185409 https://bugzilla.suse.com/1185410 https://bugzilla.suse.com/1185698