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CVE-2020-27821 — MEDIUM severity vulnerability | Release Alert

CVE-2020-27821

MEDIUMCVSS v3

Published

December 8, 2020

CVSS v2

2.1 LOW

Affected

5 projects

Assigned by

Red Hat

Severity scale

010

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.

qemu-project/qemu

GitLabQEMU main repository: Please see https://www.qemu.org/docs/master/devel/submitting-a-patch.html for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

< 5.2.0NVD

qemu/qemu

GitHubOfficial QEMU mirror. Please see https://www.qemu.org/contribute/ for how to submit changes to QEMU. Pull Requests are disabled. Please only use release tarballs from the QEMU website.

< 5.2.0NVD

More on this CVE

NVD↗GitHub Advisory↗

bonzini/qemu

GitHubMy QEMU tree

< 5.2.0NVD

birkelund/qemu

< 5.2.0NVD

thuth/qemu

GitLabQEMU mirror for GitLab CI: Please see http://wiki.qemu.org/Contribute/SubmitAPatch for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website. http://www.qemu.org

< 5.2.0NVD