Race Condition Affecting qemu-sgabios package, versions <8-150500.49.6.1


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-SLES155-QEMUSGABIOS-5813968
  • published2 Aug 2023
  • disclosed31 Jul 2023

Introduced: 31 Jul 2023

CVE-2023-3301  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 qemu-sgabios to version 8-150500.49.6.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-sgabios package and not the qemu-sgabios package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.

CVSS Scores

version 3.1