Integer Overflow or Wraparound Affecting qemu-kvm-core package, versions <15:6.2.0-11.module+el8.6.0+15668+464a1f31.2


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.07% (33rd percentile)

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  • Snyk IDSNYK-CENTOS8-QEMUKVMCORE-2439982
  • published2 Apr 2022
  • disclosed28 Mar 2022

Introduced: 28 Mar 2022

CVE-2021-4206  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-131  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade Centos:8 qemu-kvm-core to version 15:6.2.0-11.module+el8.6.0+15668+464a1f31.2 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.

A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

CVSS Scores

version 3.1