[ GLSA 200805-17 ] Perl: Execution of arbitrary code
Date: Tue, 20 May 2008 20:47:48 +0200
From: Tobias Heinlein <keytoaster@gentoo.org.>
To: [email protected]
Subject: [ GLSA 200805-17 ] Perl: Execution of arbitrary code
OpenPGP: id=9CE3CA91
Content-Type: multipart/signed; micalg=pgp-sha1;
protocol="application/pgp-signature";
boundary="------------enigDFA3F541D27BC6621CE170DA"
X-Virus-Scanned: antivirus-gw at tyumen.ru
This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enigDFA3F541D27BC6621CE170DA
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200805-17
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: Perl: Execution of arbitrary code
Date: May 20, 2008
Bugs: #219203
ID: 200805-17
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D
A double free vulnerability was discovered in Perl, possibly resulting
in the execution of arbitrary code and a Denial of Service.
Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Perl is a stable, cross platform programming language.
Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-lang/perl < 5.8.8-r5 >=3D 5.8.8-r5
2 sys-devel/libperl < 5.8.8-r2 >=3D 5.8.8-r2
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Tavis Ormandy and Will Drewry of the Google Security Team have reported
a double free vulnerability when processing a crafted regular
expression containing UTF-8 characters.
Impact
=3D=3D=3D=3D=3D=3D
A remote attacker could possibly exploit this vulnerability to execute
arbitrary code or cause a Denial of Service.
Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known workaround at this time.
Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All Perl users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Ddev-lang/perl-5.8.8-r5"
All libperl users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dsys-devel/libperl-5.8.8-r2"
References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2008-1927
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-1927
Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200805-17.xml
Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=3D=3D=3D=3D=3D=3D=3D
Copyright 2008 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
--------------enigDFA3F541D27BC6621CE170DA
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (GNU/Linux)
iEYEARECAAYFAkgzHNgACgkQD/IBIJzjypG/UgCeNB8pzPVeAKDsxMClsUzgs2sC
rPAAnA7/qxlqDO5xgba5D2roaaPoels1
=cL+u
-----END PGP SIGNATURE-----
--------------enigDFA3F541D27BC6621CE170DA--