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SUSE Linux 11 SP4 Kernel Important Patch Buffer Overflow CVE-2021-0920

suse
Calendar Grey February 27, 2026
Dist Suse Esm H88
SUSE kernel update fixes two important issues; installation steps included to mitigate risks and enhance system security.
An update that solves two vulnerabilities can now be installed.

Summary

## The SUSE Linux Enterprise 11 SP4 kernel was updated to fix various security issues The following security issues were fixed: * CVE-2021-0920: net: split out functions related to registering inflight socket files (bsc#1193731). * CVE-2025-38177: sch_hfsc: make hfsc_qlen_notify() idempotent (bsc#1245986).

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important kernel exploitable

References

* bsc#1193731

* bsc#1245986

Cross-

* CVE-2021-0920

* CVE-2025-38177

CVSS scores:

* CVE-2021-0920 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2021-0920 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

* CVE-2021-0920 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38177 ( SUSE ): 7.3

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

* CVE-2025-38177 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38177 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* SUSE Linux Enterprise Server 11 SP4

* SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE

An update that solves two vulnerabilities can now be installed.

##

* https://www.suse.com/security/cve/CVE-2021-0920.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0688-1
Release Date: 2026-02-27T15:09:04Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important kernel exploitable

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