AI Score
Confidence
High
EPSS
Percentile
45.7%
In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack (not the YARA virtual stack).
bnbdr.github.io/posts/extracheese/
github.com/bnbdr/swisscheese/
github.com/VirusTotal/yara/issues/999
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/