FKIE_CVE-2021-4207

Vulnerability from fkie_nvd - Published: 2022-04-29 17:15 - Updated: 2025-03-21 18:15
Severity ?
8.2 (High) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Summary
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
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2036966Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/202208-27Third Party Advisory
secalert@redhat.comhttps://starlabs.sg/advisories/21-4207/Exploit, Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2022/dsa-5133Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2036966Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-27Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20250321-0009/
af854a3a-2127-422b-91ae-364da2661108https://starlabs.sg/advisories/21-4207/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5133Third Party Advisory
Impacted products
Vendor Product Version
qemu qemu *
redhat enterprise_linux 8.0
redhat enterprise_linux 8.0
debian debian_linux 10.0
debian debian_linux 11.0
To clipboard 

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  "lastModified": "2025-03-21T18:15:28.397",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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