Use After Free Affecting kernel-default-base package, versions <5.3.18-150300.59.101.1.150300.18.58.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-SLES153-KERNELDEFAULTBASE-3125517
  • published18 Nov 2022
  • disclosed17 Nov 2022

Introduced: 17 Nov 2022

CVE-2022-3586  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 kernel-default-base to version 5.3.18-150300.59.101.1.150300.18.58.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-base package and not the kernel-default-base package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service.

CVSS Scores

version 3.1