Ubuntu 4.10 / 5.04 : pcre3, apache2 vulnerabilities (USN-173-2)

High Nessus Plugin ID 20581


The remote Ubuntu host is missing one or more security-related patches.


USN-173-1 fixed a buffer overflow vulnerability in the PCRE library.
However, it was determined that this did not suffice to prevent all possible overflows, so another update is necessary.

In addition, it was found that the Ubuntu 4.10 version of Apache 2 contains a static copy of the library code, so this package needs to be updated as well. In Ubuntu 5.04, Apache 2 uses the external library from the libpcre3 package.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected packages.

Plugin Details

Severity: High

ID: 20581

File Name: ubuntu_USN-173-2.nasl

Version: $Revision: 1.12 $

Type: local

Agent: unix

Published: 2006/01/15

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:apache2, p-cpe:/a:canonical:ubuntu_linux:apache2-common, p-cpe:/a:canonical:ubuntu_linux:apache2-doc, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-perchild, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-prefork, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-threadpool, p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-worker, p-cpe:/a:canonical:ubuntu_linux:apache2-prefork-dev, p-cpe:/a:canonical:ubuntu_linux:apache2-threaded-dev, p-cpe:/a:canonical:ubuntu_linux:libapr0, p-cpe:/a:canonical:ubuntu_linux:libapr0-dev, p-cpe:/a:canonical:ubuntu_linux:libpcre3, p-cpe:/a:canonical:ubuntu_linux:libpcre3-dev, p-cpe:/a:canonical:ubuntu_linux:pcregrep, p-cpe:/a:canonical:ubuntu_linux:pgrep, cpe:/o:canonical:ubuntu_linux:4.10, cpe:/o:canonical:ubuntu_linux:5.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2005/08/24

Reference Information

CVE: CVE-2005-2491

BID: 14620

USN: 173-2