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SUSE Linux Micro 6.1 libxml2 Important Denial of Service Fix 2025:20607-1

suse
Calendar Grey August 29, 2025
Dist Suse Esm H88
Patch for libxml2 resolves critical security flaws involving Denial of Service attacks and buffer overflow weaknesses.
* bsc#1244554 * bsc#1244555 * bsc#1244557 * bsc#1244580 * bsc#1244700

Summary

## This update for libxml2 fixes the following issues: * CVE-2025-6021: Integer Overflow in xmlBuildQName() Leads to Stack Buffer Overflow in libxml2 [bsc#1244580] * CVE-2025-6170: stack buffer overflow may lead to a crash [bsc#1244700] * CVE-2025-7425: Heap Use-After-Free in libxslt caused by atype corruption in xmlAttrPtr [bsc#1246296] * CVE-2025-49794: heap use after free (UAF) can lead to Denial of service (DoS) [bsc#1244554] * CVE-2025-49795: null pointer dereference may lead to Denial of service (DoS) [bsc#1244555] * CVE-2025-49796: type confusion may lead to Denial of service (DoS) [bsc#1244557] ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product:

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow SuSE important libxml2

References

* bsc#1244554

* bsc#1244555

* bsc#1244557

* bsc#1244580

* bsc#1244700

* bsc#1246296

Cross-

* CVE-2025-49794

* CVE-2025-49795

* CVE-2025-49796

* CVE-2025-6021

* CVE-2025-6170

* CVE-2025-7425

CVSS scores:

* CVE-2025-49794 ( SUSE ): 8.8

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

* CVE-2025-49794 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

* CVE-2025-49794 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

* CVE-2025-49795 ( SUSE ): 7.1

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2025-49795 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-49795 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-49796 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:20607-1
Release Date: 2025-08-27T09:46:23Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow SuSE important libxml2

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