Debian Security Advisory

DLA-1854-1 libonig -- LTS security update

Date Reported:
17 Jul 2019
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 931878.
In Mitre's CVE dictionary: CVE-2019-13224.
More information:

A use-after-free in onig_new_deluxe() in regext.c allows attackers to potentially cause information disclosure, denial of service, or possibly code execution by providing a crafted regular expression. The attacker provides a pair of a regex pattern and a string, with a multi-byte encoding that gets handled by onig_new_deluxe().

For Debian 8 Jessie, this problem has been fixed in version 5.9.5-3.2+deb8u2.

We recommend that you upgrade your libonig packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: