CVE-2021-4206

Name
CVE-2021-4206
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://starlabs.sg/advisories/21-4206/
MISC https://bugzilla.redhat.com/show_bug.cgi?id=2036998
Third Party Advisory https://www.debian.org/security/2022/dsa-5133
Mailing List https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Third Party Advisory https://security.gentoo.org/glsa/202208-27
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20250321-0010/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* qemu >= None < 7.0.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
qemu 3.15-community 6.1.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable