CVEvulnerability
CVE-2020-27821
6.0 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-12-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.0 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/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
A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.
Affected configurations
• qemu qemu (< 5.2.0)
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- http://www.openwall.com/lists/oss-security/2020/12/16/6 Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1902651 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210115-0006/ Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/16/6 Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1902651 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210115-0006/ Third Party Advisory