CVE-2021-4206

 

Published at: - 29-04-2022 07:15

Last modified: - 23-09-2022 05:13

Total changes: - 6

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://starlabs.sg/advisories/21-4206/
• https://bugzilla.redhat.com/show_bug.cgi?id=2036998
• DSA-5133-Third Party Advisory
• GLSA-202208-27-Third Party Advisory
• [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2021-4206

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures