CVE-2020-27821

Name
CVE-2020-27821
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.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1902651
MLIST http://www.openwall.com/lists/oss-security/2020/12/16/6
CONFIRM https://security.netapp.com/advisory/ntap-20210115-0006/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* qemu >= None < 5.2.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
qemu edge-community 5.2.0-r0 None fixed
qemu edge-community 5.1.0-r1 None possibly vulnerable
qemu edge-community 5.0.0-r0 None possibly vulnerable
qemu edge-community 4.2.0-r0 None possibly vulnerable
qemu edge-community 2.8.1-r1 None possibly vulnerable
qemu 3.22-community 5.2.0-r0 None fixed
qemu 3.22-community 5.1.0-r1 None possibly vulnerable
qemu 3.22-community 5.0.0-r0 None possibly vulnerable
qemu 3.22-community 4.2.0-r0 None possibly vulnerable
qemu 3.22-community 2.8.1-r1 None possibly vulnerable
qemu 3.21-community 5.2.0-r0 None fixed
qemu 3.20-community 5.2.0-r0 None fixed
qemu 3.19-community 5.2.0-r0 None fixed
qemu 3.18-community 5.2.0-r0 None fixed
qemu 3.17-community 5.2.0-r0 None fixed
qemu 3.10-main 4.0.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable