Buffer Overflow Affecting qemu-kvm-core package, versions <30:6.1.1-4.el9


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.06% (26th percentile)

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  • Snyk IDSNYK-ORACLE9-QEMUKVMCORE-3042428
  • published2 Aug 2022
  • disclosed29 Apr 2022

Introduced: 29 Apr 2022

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

How to fix?

Upgrade Oracle:9 qemu-kvm-core to version 30:6.1.1-4.el9 or higher.
This issue was patched in ELSA-2022-9869.

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 Oracle. See How to fix? for Oracle:9 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