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CentOS 5 : glibc (CESA-2010:0787)

medium Nessus Plugin ID 50795

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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 are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having important 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 contain the standard C libraries used by multiple programs on the system. These packages contain the standard C and the standard math libraries. Without these two libraries, a Linux system cannot function properly.

It was discovered that the glibc dynamic linker/loader did not handle the $ORIGIN dynamic string token set in the LD_AUDIT environment variable securely. A local attacker with write access to a file system containing setuid or setgid binaries could use this flaw to escalate their privileges. (CVE-2010-3847)

Red Hat would like to thank Tavis Ormandy for reporting this issue.

All users should upgrade to these updated packages, which contain a backported patch to correct this issue.

Solution

Update the affected glibc packages.

See Also

http://www.nessus.org/u?a326b296

http://www.nessus.org/u?78dd8315

Plugin Details

Severity: Medium

ID: 50795

File Name: centos_RHSA-2010-0787.nasl

Version: 1.15

Type: local

Agent: unix

Published: 11/24/2010

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.7

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

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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/21/2010

Vulnerability Publication Date: 1/7/2011

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (glibc "$ORIGIN" Expansion Privilege Escalation)

Reference Information

CVE: CVE-2010-3847

BID: 44154

RHSA: 2010:0787