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SUSE MicroOS: 2021:1654-1 Important: libxml2 Critical Issues

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Calendar Grey May 19, 2021
Scroller Suse
The enhancement resolves significant vulnerabilities in libxml2 for openSUSE, boosting overall safety and dependability.
An update that fixes four vulnerabilities is now available

Summary

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). 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 MicroOS 5.0: zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-1654=1 - SUSE Linux Enterprise Module for Python2 15-SP3:

Topics%20covered

Topics Covered

security advisory buffer overflow important SUSE Linux libxml2 use after free SUSE MicroOS

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 MicroOS 5.0

SUSE Linux Enterprise Module for Python2 15-SP3

SUSE Linux Enterprise Module for Python2 15-SP2

SUSE Linux Enterprise Module for Basesystem 15-SP3

SUSE Linux Enterprise Module for Basesystem 15-SP2

https://www.suse.com/security/cve/CVE-2021-3516.html

https://www.suse.com/security/cve/CVE-2021-3517.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:1654-1
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow important SUSE Linux libxml2 use after free SUSE MicroOS

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