DescriptionA NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause denial of service by providing a crafted regular expression. Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.
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)
Debian Bugs931878

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libonig (PTS)buster6.9.1-1vulnerable
bookworm, sid6.9.8-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libonigsourcejessie(not affected)
libonigsourcestretch(not affected)


[buster] - libonig <no-dsa> (Minor issue)
[stretch] - libonig <not-affected> (vulnerable code was introduced later)
[jessie] - libonig <not-affected> (vulnerable code was introduced later)

Search for package or bug name: Reporting problems