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Mandriva Linux Security Advisory : perl (MDVSA-2013:113)

high Nessus Plugin ID 66125

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Synopsis

The remote Mandriva Linux host is missing one or more security updates.

Description

Updated perl packages fix security vulnerability :

It was discovered that Perl's 'x' string repeat operator is vulnerable to a heap-based buffer overflow. An attacker could use this to execute arbitrary code (CVE-2012-5195).

The _compile function in Maketext.pm in the Locale::Maketext implementation in Perl before 5.17.7 does not properly handle backslashes and fully qualified method names during compilation of bracket notation, which allows context-dependent attackers to execute arbitrary commands via crafted input to an application that accepts translation strings from users (CVE-2012-6329).

In order to prevent an algorithmic complexity attack against its hashing mechanism, perl will sometimes recalculate keys and redistribute the contents of a hash. This mechanism has made perl robust against attacks that have been demonstrated against other systems. Research by Yves Orton has recently uncovered a flaw in the rehashing code which can result in pathological behavior. This flaw could be exploited to carry out a denial of service attack against code that uses arbitrary user input as hash keys. Because using user-provided strings as hash keys is a very common operation, we urge users of perl to update their perl executable as soon as possible.
Updates to address this issue have bene pushed to main-5.8, maint-5.10, maint-5.12, maint-5.14, and maint-5.16 branches today.
Vendors* were informed of this problem two weeks ago and are expected to be shipping updates today (or otherwise very soon) (CVE-2013-1667).

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 66125

File Name: mandriva_MDVSA-2013-113.nasl

Version: 1.25

Type: local

Published: 4/20/2013

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:perl, p-cpe:/a:mandriva:linux:perl-locale-maketext, p-cpe:/a:mandriva:linux:perl-base, p-cpe:/a:mandriva:linux:perl-devel, p-cpe:/a:mandriva:linux:perl-doc, cpe:/o:mandriva:business_server:1

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/10/2013

Exploitable With

Metasploit (TWiki MAKETEXT Remote Command Execution)

Elliot (Foswiki 1.1.5 RCE)

Reference Information

CVE: CVE-2012-5195, CVE-2012-6329, CVE-2013-1667

BID: 56287, 56950, 58311

MDVSA: 2013:113

MGASA: 2012-0352, 2013-0032, 2013-0094