Alerts This Week
Warning Icon 1 714
Alerts This Week
Warning Icon 1 714

SUSE: 2025:02606-1 Important Kernel Update for Denial of Service Protection

suse
Calendar Grey August 4, 2025
Dist Suse Esm H88
This report highlights essential revisions to the Linux Kernel, addressing multiple security flaws and providing installation instructions.
* bsc#1245776 * bsc#1245793 * bsc#1245797 Cross-References:

Summary

## This update for the Linux Kernel 4.12.14-122_250 fixes several issues. The following security issues were fixed: * CVE-2025-37797: net_sched: hfsc: Fix a UAF vulnerability in class handling (bsc#1245793). * CVE-2025-37752: net_sched: sch_sfq: move the limit validation (bsc#1245776). * CVE-2025-21702: pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (bsc#1245797). ## 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: * SUSE Linux Enterprise Live Patching 12-SP5 zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2025-2606=1 ## Package List: * SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)

Topics%20covered

Topics Covered

security advisory denial of service SuSE important kernel cross-reference

References

* bsc#1245776

* bsc#1245793

* bsc#1245797

Cross-

* CVE-2025-21702

* CVE-2025-37752

* CVE-2025-37797

CVSS scores:

* CVE-2025-21702 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-37752 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-37797 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

* SUSE Linux Enterprise High Performance Computing 12 SP5

* SUSE Linux Enterprise Live Patching 12-SP5

* SUSE Linux Enterprise Server 12 SP5

* SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves three vulnerabilities can now be installed.

##

* https://www.suse.com/security/cve/CVE-2025-21702.html

* https://www.suse.com/security/cve/CVE-2025-37752.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:02606-1
Release Date: 2025-08-02T16:34:10Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important kernel cross-reference

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here