GLSA-201310-01 : Perl Module-Signature module: Arbitrary code execution

This script is Copyright (C) 2013-2015 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201310-01
(Perl Module-Signature module: Arbitrary code execution)

The ‘cpansign verify’ command will automatically download keys and
use them to check the signature of CPAN packages via the SIGNATURE file.
If an attacker were to replace this (SHA1) with a special unknown cipher
(e.g. ‘Special’) and were to include in the distribution a
‘Digest/Special.pm’, the code in this Perl module would be executed
when ‘cpansign -verify’ is run.

Impact :

A remote attacker could possibly execute arbitrary code with the
privileges of the process.

Workaround :

There is no known workaround at this time.

See also :

https://security.gentoo.org/glsa/201310-01

Solution :

All users of the Module-Signature Perl module should upgrade to the
latest version:
# emerge --sync
# emerge --ask --oneshot --verbose
'>=dev-perl/Module-Signature-0.720.0'

Risk factor :

Medium / CVSS Base Score : 4.4
(CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 3.8
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 70307 ()

Bugtraq ID: 60352

CVE ID: CVE-2013-2145

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