FreeBSD : libproxy -- stack-based buffer overflow (3b5c2362-bd07-11e5-b7ef-5453ed2e2b49)

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

Tomas Hoger reports :

A buffer overflow flaw was discovered in the libproxy's url::get_pac()
used to download proxy.pac proxy auto-configuration file. A malicious
host hosting proxy.pac, or a man in the middle attacker, could use
this flaw to trigger a stack-based buffer overflow in an application
using libproxy, if proxy configuration instructed it to download
proxy.pac file from a remote HTTP server.

See also :

https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-4504
http://www.openwall.com/lists/oss-security/2012/10/12/1
http://www.nessus.org/u?ef5c1679
https://bugzilla.redhat.com/show_bug.cgi?id=864417
http://www.nessus.org/u?e3e8a475
http://www.nessus.org/u?e439340a

Solution :

Update the affected packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 87982 ()

Bugtraq ID:

CVE ID: CVE-2012-4504

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