Debian DSA-2641-2 : perl - rehashing flaw

High Nessus Plugin ID 65178

Synopsis

The remote Debian host is missing a security-related update.

Description

Yves Orton discovered a flaw in the rehashing code of Perl. This flaw could be exploited to carry out a denial of service attack against code that uses arbitrary user input as hash keys. Specifically an attacker could create a set of keys of a hash causing a denial of service via memory exhaustion.

Solution

Upgrade the perl and libapache2-mod-perl2 packages.

For the stable distribution (squeeze), this problem has been fixed in version 5.10.1-17squeeze6 of perl.

For the stable distribution (squeeze), this problem has been fixed in version 2.0.4-7+squeeze1 of libapache2-mod-perl2.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702296

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702821

https://packages.debian.org/source/squeeze/perl

https://packages.debian.org/source/squeeze/libapache2-mod-perl2

https://www.debian.org/security/2013/dsa-2641

Plugin Details

Severity: High

ID: 65178

File Name: debian_DSA-2641.nasl

Version: 1.16

Type: local

Agent: unix

Published: 2013/03/11

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libapache2-mod-perl2, p-cpe:/a:debian:debian_linux:perl, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2013/03/20

Reference Information

CVE: CVE-2013-1667

BID: 58311

DSA: 2641