Missing Initialization of Resource Affecting kernel-livepatch-6_4_0-150600_10_8-rt package, versions <1-150600.1.3.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-SLES156-KERNELLIVEPATCH640150600108RT-7928088
  • published11 Sept 2024
  • disclosed10 Sept 2024

Introduced: 10 Sep 2024

CVE-2024-43873  (opens in a new tab)
CWE-909  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-livepatch-6_4_0-150600_10_8-rt to version 1-150600.1.3.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_4_0-150600_10_8-rt package and not the kernel-livepatch-6_4_0-150600_10_8-rt package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

vhost/vsock: always initialize seqpacket_allow

There are two issues around seqpacket_allow:

  1. seqpacket_allow is not initialized when socket is created. Thus if features are never set, it will be read uninitialized.
  2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared, then seqpacket_allow will not be cleared appropriately (existing apps I know about don't usually do this but it's legal and there's no way to be sure no one relies on this).

To fix: - initialize seqpacket_allow after allocation - set it unconditionally in set_features

CVSS Scores

version 3.1