USN-5662-1: Oniguruma vulnerabilities
10 October 2022
Several security issues were fixed in Oniguruma.
Releases
Packages
- libonig - regular expressions library
Details
It was discovered that Oniguruma incorrectly handled certain regular
expressions. An attacker could possibly use this issue to cause a denial
of service, obtain sensitive information or other unspecified impact. This issue
only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2019-16163,
CVE-2019-19012, CVE-2019-19204, CVE-2019-19246)
It was discovered that Oniguruma incorrectly handled memory when using certain
UChar pointers. An attacker could possibly use this issue to cause a denial of
service or sensitive information disclosure. (CVE-2019-19203)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04
-
libonig4
-
6.7.0-1ubuntu0.1~esm2
Available with Ubuntu Pro
Ubuntu 16.04
-
libonig2
-
5.9.6-1ubuntu0.1+esm3
Available with Ubuntu Pro
Ubuntu 14.04
-
libonig2
-
5.9.1-1ubuntu1.1+esm3
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
Related notices
- USN-4460-1: libonig, libonig-dev, libonig2