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SUSE: 2021:1658-1 Important: Libxml2 Issues Fixed, Critical Threat

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Calendar Grey May 19, 2021
Scroller Suse
Vital SUSE security patch tackling various vulnerabilities in libxml2, encompassing heap overflows and use-after-free scenarios.
An update that fixes four vulnerabilities is now available

Summary

This update for libxml2 fixes the following issues: Security issues fixed: 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). Patch Instructions: To install this SUSE 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: - SUSE OpenStack Cloud Crowbar 9: zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2021-1658=1

Topics%20covered

Topics Covered

security advisory security update buffer overflow SUSE libxml2 use after free cross-reference

References

#1185408 #1185409 #1185410 #1185698

Cross- 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 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

SUSE OpenStack Cloud Crowbar 9

SUSE OpenStack Cloud Crowbar 8

SUSE OpenStack Cloud 9

SUSE OpenStack Cloud 8

SUSE Linux Enterprise Software Development Kit 12-SP5

SUSE Linux Enterprise Server for SAP 12-SP4

SUSE Linux Enterprise Server for SAP 12-SP3

SUSE Linux Enterprise Server 12-SP5

SUSE Linux Enterprise...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:1658-1
Rating: important

Topics%20covered

Topics Covered

security advisory security update buffer overflow SUSE libxml2 use after free cross-reference

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