Out-of-bounds Write Affecting kernel-zfcpdump package, versions <5.14.21-150400.24.81.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES154-KERNELZFCPDUMP-5841332
  • published15 Aug 2023
  • disclosed14 Aug 2023

Introduced: 14 Aug 2023

CVE-2023-3611  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-zfcpdump to version 5.14.21-150400.24.81.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump package and not the kernel-zfcpdump package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.

We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.

CVSS Scores

version 3.1