DescriptionIn 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).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium
Debian Bugs916932

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
yara (PTS)stretch3.5.0+dfsg-9vulnerable
bullseye, sid4.0.5-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[stretch] - yara <no-dsa> (Minor issue)
[jessie] - yara <no-dsa> (Minor issue)

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