Out-of-bounds Read Affecting virt:rhel/nbdkit-basic-plugins package, versions <0:1.24.0-4.module+el8.7.0+16689+53d59bc2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-RHEL8-VIRT-5066105
  • published26 Nov 2022
  • disclosed25 Nov 2022

Introduced: 25 Nov 2022

CVE-2022-4144  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:8 virt:rhel/nbdkit-basic-plugins to version 0:1.24.0-4.module+el8.7.0+16689+53d59bc2 or higher.
This issue was patched in RHSA-2023:0099.

NVD Description

Note: Versions mentioned in the description apply only to the upstream virt:rhel/nbdkit-basic-plugins package and not the virt:rhel/nbdkit-basic-plugins package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.

CVSS Scores

version 3.1