USN-2943-1: PCRE vulnerabilities

Ubuntu Security Notice USN-2943-1

29th March, 2016

pcre3 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 15.10
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

PCRE could be made to crash or run programs if it processed a specially-crafted regular expression.

Software description

• pcre3 - Perl 5 Compatible Regular Expression Library

Details

It was discovered that PCRE incorrectly handled certain regular
expressions. A remote attacker could use this issue to cause applications
using PCRE to crash, resulting in a denial of service, or possibly execute
arbitrary code.

Update instructions

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

Ubuntu 15.10:

libpcre3 2:8.35-7.1ubuntu1.3

Ubuntu 14.04 LTS:

libpcre3 1:8.31-2ubuntu2.2

Ubuntu 12.04 LTS:

libpcre3 8.12-4ubuntu0.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart applications using PCRE,
such as the Apache HTTP server and Nginx, to make all the necessary
changes.

References

CVE-2014-9769, CVE-2015-2325, CVE-2015-2326, CVE-2015-2327, CVE-2015-2328, CVE-2015-3210, CVE-2015-5073, CVE-2015-8380, CVE-2015-8381, CVE-2015-8382, CVE-2015-8383, CVE-2015-8384, CVE-2015-8385, CVE-2015-8386, CVE-2015-8387, CVE-2015-8388, CVE-2015-8389, CVE-2015-8390, CVE-2015-8391, CVE-2015-8392, CVE-2015-8393, CVE-2015-8394, CVE-2015-8395, CVE-2016-1283, CVE-2016-3191