CentOS 5 : glibc (CESA-2012:1097)

medium Nessus Plugin ID 60054

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated glibc packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The glibc packages provide the standard C and standard math libraries used by multiple programs on the system. Without these libraries, the Linux system cannot function properly.

It was discovered that the formatted printing functionality in glibc did not properly restrict the use of alloca(). This could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort. (CVE-2012-3406)

This update also fixes the following bug :

* If a file or a string was in the IBM-930 encoding, and contained the invalid multibyte character '0xffff', attempting to use iconv() (or the iconv command) to convert that file or string to another encoding, such as UTF-8, resulted in a segmentation fault. With this update, the conversion code for the IBM-930 encoding recognizes this invalid character and calls an error handler, rather than causing a segmentation fault. (BZ#837896)

All users of glibc are advised to upgrade to these updated packages, which contain backported patches to fix these issues.

Solution

Update the affected glibc packages.

Plugin Details

Severity: Medium

ID: 60054

File Name: centos_RHSA-2012-1097.nasl

Version: 1.18

Type: local

Agent: unix

Family: CentOS Local Security Checks

Published: 7/19/2012

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2012-3406

Vulnerability Information

CPE: p-cpe:/a:centos:centos:glibc, p-cpe:/a:centos:centos:glibc-headers, p-cpe:/a:centos:centos:glibc-devel, p-cpe:/a:centos:centos:glibc-utils, cpe:/o:centos:centos:5, p-cpe:/a:centos:centos:nscd, p-cpe:/a:centos:centos:glibc-common

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/18/2012

Vulnerability Publication Date: 2/10/2014

Reference Information

CVE: CVE-2012-3406

BID: 54374

RHSA: 2012:1097

Detections

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