CVEvulnerability
CVE-2021-3638
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-03-03
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-787
Description
An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Affected configurations
• qemu qemu (>= 4.0.0 <= 6.1.0)
• fedoraproject fedora 36
• fedoraproject fedora 37
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1979858 Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/ Mailing List, Third Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html Exploit, Mailing List, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220407-0003/ Third Party Advisory
- https://ubuntu.com/security/CVE-2021-3638 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1979858 Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/ Mailing List, Third Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html Exploit, Mailing List, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220407-0003/ Third Party Advisory
- https://ubuntu.com/security/CVE-2021-3638 Third Party Advisory