Use After Free Affecting kernel-livepatch-5_14_21-150500_13_5-rt package, versions <1-150500.11.5.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.25% (17th percentile)

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  • Snyk IDSNYK-SLES155-KERNELLIVEPATCH51421150500135RT-5772166
  • published12 Jul 2023
  • disclosed11 Jul 2023

Introduced: 11 Jul 2023

CVE-2023-1838  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-livepatch-5_14_21-150500_13_5-rt to version 1-150500.11.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150500_13_5-rt package and not the kernel-livepatch-5_14_21-150500_13_5-rt package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem.

CVSS Base Scores

version 3.1