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CVE-2020-10701

Published: 27 May 2021

A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent commands. Depending on the timeout value that is set, this flaw can make guest agent commands fail because the agent cannot respond in time. Unprivileged users with a read-only connection could abuse this flaw to set the response timeout for all guest agent messages to zero, potentially leading to a denial of service. This flaw affects libvirt versions before 6.2.0.

Priority

Low

CVSS 3 base score: 6.5

Status

Package Release Status
libvirt
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
eoan Not vulnerable
(code not present)
precise Not vulnerable
(code not present)
trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)

Notes

AuthorNote
mdeslaur
introduced by:
https://libvirt.org/git/?p=libvirt.git;a=commit;h=95f5ac9ae52455e9da47afc95fa31c9456ac27ae

References

Bugs