RHEL 6 : libproxy (RHSA-2012:1461)

critical Nessus Plugin ID 62922

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Synopsis

The remote Red Hat host is missing a security update for libproxy.

Description

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2012:1461 advisory.

libproxy is a library that handles all the details of proxy configuration.

A buffer overflow flaw was found in the way libproxy handled the downloading of proxy auto-configuration (PAC) files. A malicious server hosting a PAC file or a man-in-the-middle attacker could use this flaw to cause an application using libproxy to crash or, possibly, execute arbitrary code, if the proxy settings obtained by libproxy (from the environment or the desktop environment settings) instructed the use of a PAC proxy configuration. (CVE-2012-4505)

This issue was discovered by the Red Hat Security Response Team.

Users of libproxy should upgrade to these updated packages, which contain a backported patch to correct this issue. All applications using libproxy must be restarted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL libproxy package based on the guidance in RHSA-2012:1461.

Plugin Details

Severity: Critical

ID: 62922

File Name: redhat-RHSA-2012-1461.nasl

Version: 1.20

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/15/2012

Updated: 11/4/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2012-4505

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:libproxy, p-cpe:/a:redhat:enterprise_linux:libproxy-gnome, p-cpe:/a:redhat:enterprise_linux:libproxy-webkit, p-cpe:/a:redhat:enterprise_linux:libproxy-mozjs, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:libproxy-devel, p-cpe:/a:redhat:enterprise_linux:libproxy-python, p-cpe:/a:redhat:enterprise_linux:libproxy-bin, p-cpe:/a:redhat:enterprise_linux:libproxy-kde

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/14/2012

Vulnerability Publication Date: 11/11/2012

Reference Information

CVE: CVE-2012-4505

BID: 55910

RHSA: 2012:1461

Detections

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