Authenticated RCE via unsanitized compression_algorithm
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.5%
exploitation probability
0.5%top 60% of all CVEs
observed exploitation
nono source reports it
An improper sanitization of the compression_algorithm parameter in Canonical LXD allows an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. This issue affected LXD from 4.12 through 6.6 and was fixed in the snap versions 5.0.6-e49d9f4 (channel 5.0/stable), 5.21.4-1374f39 (channel 5.21/stable), and 6.7-1f11451 (channel 6.0 stable). The channel 4.0/stable is not affected as it contains version 4.0.10.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Affected products
Canonical · lxdReferences
https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4fhttps://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g