CVE - CVE-2021-4207

CVE-ID
CVE-2021-4207	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->header.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
DEBIAN:DSA-5133 URL:https://www.debian.org/security/2022/dsa-5133 GENTOO:GLSA-202208-27 URL:https://security.gentoo.org/glsa/202208-27 MISC:https://bugzilla.redhat.com/show_bug.cgi?id=2036966 URL:https://bugzilla.redhat.com/show_bug.cgi?id=2036966 MISC:https://starlabs.sg/advisories/21-4207/ URL:https://starlabs.sg/advisories/21-4207/ MLIST:[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update URL:https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Assigning CNA
Red Hat, Inc.
Date Record Created
20220113	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20220113)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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