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RHEL 6 : perl (RHSA-2011:1424)

critical Nessus Plugin ID 56709

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Synopsis

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

Description

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2011:1424 advisory.

 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.

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

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

Solution

Update the RHEL perl package based on the guidance in RHSA-2011:1424.

See Also

http://www.nessus.org/u?17a92548

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=731246

https://bugzilla.redhat.com/show_bug.cgi?id=743010

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

Plugin Details

Severity: Critical

ID: 56709

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

Version: 1.15

Type: local

Agent: unix

Published: 11/4/2011

Updated: 6/19/2024

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: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2011-3597

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9

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

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

Vulnerability Information

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

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: 11/3/2011

Vulnerability Publication Date: 1/13/2012

Reference Information

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

BID: 49858, 49911

CWE: 122

RHSA: 2011:1424