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.
References
| Link | Resource |
|---|---|
| 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 |
Configurations
History
21 Nov 2024, 05:21
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://www.openwall.com/lists/oss-security/2020/12/16/6 - Mailing List, Third Party Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=1902651 - Issue Tracking, Patch, Third Party Advisory | |
| References | () https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html - Mailing List, Third Party Advisory | |
| References | () https://security.netapp.com/advisory/ntap-20210115-0006/ - Third Party Advisory |
Information
Published : 2020-12-08 22:15
Updated : 2024-11-21 05:21
NVD link : CVE-2020-27821
Mitre link : CVE-2020-27821
CVE.ORG link : CVE-2020-27821
JSON object : View
Products Affected
qemu
- qemu
debian
- debian_linux
CWE
CWE-787
Out-of-bounds Write