USN-2694-1: PCRE vulnerabilities

Details

Michele Spagnuolo 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. This issue only affected Ubuntu 14.04 LTS. (CVE-2014-8964)

Kai Lu 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. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04.
(CVE-2015-2325, CVE-2015-2326)

Wen Guanxing 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. This issue only affected Ubuntu 15.04. (CVE-2015-3210)

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. This issue only affected Ubuntu 12.04 LTS and 14.04 LTS.
(CVE-2015-5073)

Update instructions

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

Ubuntu 15.04

• libpcre3 - 2:8.35-3.3ubuntu1.1

Ubuntu 14.04

• libpcre3 - 1:8.31-2ubuntu2.1

Ubuntu 12.04

• libpcre3 - 8.12-4ubuntu0.1

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-2014-8964
• CVE-2015-2325
• CVE-2015-2326
• CVE-2015-3210
• CVE-2015-5073

Related notices

• USN-2943-1: pcre3, libpcre3-udeb, libpcrecpp0, pcregrep, libpcre3-dev, libpcre3