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Ubuntu Security Notice USN-2694-1

Ubuntu Security Notice USN-2694-1
Posted Aug 3, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2694-1 - 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. 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. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2014-8964, CVE-2015-2325, CVE-2015-2326, CVE-2015-3210, CVE-2015-5073
SHA-256 | 8804417254216ccc530798963467d9a6a6c33083c90ac34da9d1be7bcc0c39c8

Ubuntu Security Notice USN-2694-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-2694-1
July 29, 2015

pcre3 vulnerabilities
============================================================================

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

- Ubuntu 15.04
- 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:

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 LTS:
libpcre3 1:8.31-2ubuntu2.1

Ubuntu 12.04 LTS:
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:
http://www.ubuntu.com/usn/usn-2694-1
CVE-2014-8964, CVE-2015-2325, CVE-2015-2326, CVE-2015-3210,
CVE-2015-5073

Package Information:
https://launchpad.net/ubuntu/+source/pcre3/2:8.35-3.3ubuntu1.1
https://launchpad.net/ubuntu/+source/pcre3/1:8.31-2ubuntu2.1
https://launchpad.net/ubuntu/+source/pcre3/8.12-4ubuntu0.1
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