Integer Overflow or Wraparound Affecting qemu-block-rbd package, versions <3.1.1.1-9.24.3


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.03% (10th percentile)

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  • Snyk IDSNYK-SLES151-QEMUBLOCKRBD-2693134
  • published14 Apr 2022
  • disclosed16 Apr 2021

Introduced: 16 Apr 2021

CVE-2021-20203  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 qemu-block-rbd to version 3.1.1.1-9.24.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-block-rbd package and not the qemu-block-rbd package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

CVSS Base Scores

version 3.1