Out-of-bounds Read Affecting qemu-kvm-core package, versions <15:6.2.0-21.module+el8.7.0+17573+effbd7e8.2


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-CENTOS8-QEMUKVMCORE-3148640
  • 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 Centos:8 qemu-kvm-core to version 15:6.2.0-21.module+el8.7.0+17573+effbd7e8.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-core package and not the qemu-kvm-core package as distributed by Centos. See How to fix? for Centos: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