Ubuntu 10.04 LTS / 11.10 / 12.04 LTS : libproxy vulnerabilities (USN-1629-1)

Critical Nessus Plugin ID 62899


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


Tomas Mraz discovered that libproxy incorrectly handled certain PAC files. A remote attacker could use this issue to cause libproxy to crash, or to possibly execute arbitrary code. (CVE-2012-4504, CVE-2012-4505).

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 libproxy0 and / or libproxy1 packages.

Plugin Details

Severity: Critical

ID: 62899

File Name: ubuntu_USN-1629-1.nasl

Version: $Revision: 1.5 $

Type: local

Agent: unix

Published: 2012/11/13

Modified: 2016/05/25

Dependencies: 12634

Risk Information

Risk Factor: Critical


Base Score: 10

Temporal Score: 8.7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libproxy0, p-cpe:/a:canonical:ubuntu_linux:libproxy1, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:11.10, cpe:/o:canonical:ubuntu_linux:12.04:-:lts

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: 2012/11/12

Reference Information

CVE: CVE-2012-4504, CVE-2012-4505

BID: 55909, 55910

OSVDB: 85279, 86549, 86567

USN: 1629-1