Use After Free Affecting libonig package, versions <6.9.2-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
4.05% (90th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBONIG-452388
  • published24 Jul 2019
  • disclosed10 Jul 2019

Introduced: 10 Jul 2019

CVE-2019-13224  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:unstable libonig to version 6.9.2-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libonig package and not the libonig package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A use-after-free in onig_new_deluxe() in regext.c in Oniguruma 6.9.2 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(). Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.

CVSS Base Scores

version 3.1