Incorrect delegation lookups can make go-tuf download the wrong artifact
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.5%
exploitation probability
0.5%top 59% of all CVEs
observed exploitation
nono source reports it
go-tuf is a Go implementation of The Update Framework (TUF). The go-tuf client inconsistently traces the delegations. For example, if targets delegate to "A", and to "B", and "B" delegates to "C", then the client should trace the delegations in the order "A" then "B" then "C" but it may incorrectly trace the delegations "B"->"C"->"A". This vulnerability is fixed in 2.0.1.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
theupdateframework · go-tufReferences
https://github.com/theupdateframework/go-tuf/blob/f95222bdd22d2ac4e5b8ed6fe912b645e213c3b5/metadata/metadata.go#L565-L580https://github.com/theupdateframework/go-tuf/commit/edc30b474f5afd4cc603e17149704d5aa605151dhttps://github.com/theupdateframework/go-tuf/commit/f36420caba9edbfdfd64f95a9554c0836d9cf819https://github.com/theupdateframework/go-tuf/security/advisories/GHSA-4f8r-qqr9-fq8jhttps://github.com/theupdateframework/tuf-conformance/pull/115