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AUSCERT External Security Bulletin Redistribution
DLA 1918-1: libonig security update
13 September 2019
AusCERT Security Bulletin Summary
Operating System: Debian GNU/Linux 8
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2019-16163
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running libonig check for an updated version of the software for
their operating system.
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Package : libonig
Version : 5.9.5-3.2+deb8u3
CVE ID : CVE-2019-16163
Debian Bug : 939988
The Oniguruma regular expressions library, notably used in PHP
mbstring, is vulnerable to stack exhaustion. A crafted regular
expression can crash the process.
For Debian 8 "Jessie", this problem has been fixed in version
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: https://wiki.debian.org/LTS
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