RHEL 6 : perl (RHSA-2011:1424)

high Nessus Plugin ID 56709

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated perl packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Perl is a high-level programming language commonly used for system administration utilities and web programming.

A heap-based buffer overflow flaw was found in the way Perl decoded Unicode strings. An attacker could create a malicious Unicode string that, when decoded by a Perl program, would cause the program to crash or, potentially, execute arbitrary code with the permissions of the user running the program. (CVE-2011-2939)

It was found that the 'new' constructor of the Digest module used its argument as part of the string expression passed to the eval() function. An attacker could possibly use this flaw to execute arbitrary Perl code with the privileges of a Perl program that uses untrusted input as an argument to the constructor. (CVE-2011-3597)

All Perl users should upgrade to these updated packages, which contain backported patches to correct these issues. All running Perl programs must be restarted for this update to take effect.

Solution

Update the affected packages.

See Also

https://access.redhat.com/security/cve/cve-2011-2939

https://access.redhat.com/security/cve/cve-2011-3597

https://access.redhat.com/errata/RHSA-2011:1424

Plugin Details

Severity: High

ID: 56709

File Name: redhat-RHSA-2011-1424.nasl

Version: 1.11

Type: local

Agent: unix

Published: 11/4/2011

Updated: 1/14/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:perl, p-cpe:/a:redhat:enterprise_linux:perl-archive-extract, p-cpe:/a:redhat:enterprise_linux:perl-archive-tar, p-cpe:/a:redhat:enterprise_linux:perl-cgi, p-cpe:/a:redhat:enterprise_linux:perl-cpan, p-cpe:/a:redhat:enterprise_linux:perl-cpanplus, p-cpe:/a:redhat:enterprise_linux:perl-compress-zlib, p-cpe:/a:redhat:enterprise_linux:perl-digest-sha, p-cpe:/a:redhat:enterprise_linux:perl-extutils-cbuilder, p-cpe:/a:redhat:enterprise_linux:perl-extutils-embed, p-cpe:/a:redhat:enterprise_linux:perl-extutils-makemaker, p-cpe:/a:redhat:enterprise_linux:perl-extutils-parsexs, p-cpe:/a:redhat:enterprise_linux:perl-file-fetch, p-cpe:/a:redhat:enterprise_linux:perl-io-compress-base, p-cpe:/a:redhat:enterprise_linux:perl-io-compress-zlib, p-cpe:/a:redhat:enterprise_linux:perl-io-zlib, p-cpe:/a:redhat:enterprise_linux:perl-ipc-cmd, p-cpe:/a:redhat:enterprise_linux:perl-locale-maketext-simple, p-cpe:/a:redhat:enterprise_linux:perl-log-message, p-cpe:/a:redhat:enterprise_linux:perl-log-message-simple, p-cpe:/a:redhat:enterprise_linux:perl-module-build, p-cpe:/a:redhat:enterprise_linux:perl-module-corelist, p-cpe:/a:redhat:enterprise_linux:perl-module-load, p-cpe:/a:redhat:enterprise_linux:perl-module-load-conditional, p-cpe:/a:redhat:enterprise_linux:perl-module-loaded, p-cpe:/a:redhat:enterprise_linux:perl-module-pluggable, p-cpe:/a:redhat:enterprise_linux:perl-object-accessor, p-cpe:/a:redhat:enterprise_linux:perl-package-constants, p-cpe:/a:redhat:enterprise_linux:perl-params-check, p-cpe:/a:redhat:enterprise_linux:perl-parse-cpan-meta, p-cpe:/a:redhat:enterprise_linux:perl-pod-escapes, p-cpe:/a:redhat:enterprise_linux:perl-pod-simple, p-cpe:/a:redhat:enterprise_linux:perl-term-ui, p-cpe:/a:redhat:enterprise_linux:perl-test-harness, p-cpe:/a:redhat:enterprise_linux:perl-test-simple, p-cpe:/a:redhat:enterprise_linux:perl-time-hires, p-cpe:/a:redhat:enterprise_linux:perl-time-piece, p-cpe:/a:redhat:enterprise_linux:perl-core, p-cpe:/a:redhat:enterprise_linux:perl-debuginfo, p-cpe:/a:redhat:enterprise_linux:perl-devel, p-cpe:/a:redhat:enterprise_linux:perl-libs, p-cpe:/a:redhat:enterprise_linux:perl-parent, p-cpe:/a:redhat:enterprise_linux:perl-suidperl, p-cpe:/a:redhat:enterprise_linux:perl-version, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.1

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/3/2011

Vulnerability Publication Date: 1/13/2012

Reference Information

CVE: CVE-2011-2939, CVE-2011-3597

BID: 49858, 49911

RHSA: 2011:1424