USN-5662-1: Oniguruma vulnerabilities

10 October 2022

Several security issues were fixed in Oniguruma.

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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)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

References

Related notices

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