CVE-2020-27821
CVE-2020-27821
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.0 · Medium · EPSS 0.4% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
qemu
- Versions
- prior to 5.2.0: Affected
No fix published
qemu Debian:12
- Affected ranges
- ECOSYSTEM: < 1:5.2+dfsg-3
Update to 1:5.2+dfsg-3
qemu Debian:13
- Affected ranges
- ECOSYSTEM: < 1:5.2+dfsg-3
Update to 1:5.2+dfsg-3
qemu Debian:14
- Affected ranges
- ECOSYSTEM: < 1:5.2+dfsg-3
Update to 1:5.2+dfsg-3
qemu Ubuntu:20.04:LTS
- Versions
- 1:4.0+dfsg-0ubuntu9
- 1:4.0+dfsg-0ubuntu10
- 1:4.2-1ubuntu1
- 1:4.2-1ubuntu2
- 1:4.2-3ubuntu1
- 1:4.2-3ubuntu2
- 1:4.2-3ubuntu3
- 1:4.2-3ubuntu4
- 1:4.2-3ubuntu5
- 1:4.2-3ubuntu6
- 1:4.2-3ubuntu6.1
- 1:4.2-3ubuntu6.2
- 1:4.2-3ubuntu6.3
- 1:4.2-3ubuntu6.4
- 1:4.2-3ubuntu6.5
- 1:4.2-3ubuntu6.6
- 1:4.2-3ubuntu6.7
- 1:4.2-3ubuntu6.8
- 1:4.2-3ubuntu6.9
- 1:4.2-3ubuntu6.10
- 1:4.2-3ubuntu6.11
- Affected ranges
- ECOSYSTEM: < 1:4.2-3ubuntu6.12
Update to 1:4.2-3ubuntu6.12