|Subject:||[OpenPKG-SA-2005.003] OpenPKG Security Advisory (a2ps)|
|Date:||Mon, 17 Jan 2005 13:37:28 +0100|
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ________________________________________________________________________ OpenPKG Security Advisory The OpenPKG Project http://www.openpkg.org/security.html http://www.openpkg.org firstname.lastname@example.org email@example.com OpenPKG-SA-2005.003 17-Jan-2005 ________________________________________________________________________ Package: a2ps Vulnerability: arbitrary code execution OpenPKG Specific: no Affected Releases: Affected Packages: Corrected Packages: OpenPKG CURRENT <= a2ps-4.13b-20040818 >= a2ps-4.13b-20050117 OpenPKG 2.2 <= a2ps-4.13b-2.2.0 >= a2ps-4.13b-2.2.1 OpenPKG 2.1 <= a2ps-4.13b-2.1.0 >= a2ps-4.13b-2.1.1 Dependent Packages: none Description: Rudolf Polzer discovered  a vulnerability in GNU a2ps , a converter and pretty-printer for many formats to PostScript. The program does not escape shell meta characters properly which could lead to the execution of arbitrary commands as a privileged user if a2ps is installed as a printer filter. a2ps allows remote attackers to execute arbitrary commands via shell metacharacters in the filename. The Common Vulnerabilities and Exposures (CVE) project assigned the identifier CAN-2004-1170  to the problem. Please check whether you are affected by running "<prefix>/bin/openpkg rpm -q a2ps". If you have the "a2ps" package installed and its version is affected (see above), we recommend that you immediately upgrade it (see Solution) . Solution: Select the updated source RPM appropriate for your OpenPKG release , fetch it from the OpenPKG FTP service  or a mirror location, verify its integrity , build a corresponding binary RPM from it  and update your OpenPKG installation by applying the binary RPM . For the most recent release OpenPKG 2.2, perform the following operations to permanently fix the security problem (for other releases adjust accordingly). $ ftp ftp.openpkg.org ftp> bin ftp> cd release/2.2/UPD ftp> get a2ps-4.13b-2.2.1.src.rpm ftp> bye $ <prefix>/bin/openpkg rpm -v --checksig a2ps-4.13b-2.2.1.src.rpm $ <prefix>/bin/openpkg rpm --rebuild a2ps-4.13b-2.2.1.src.rpm $ su - # <prefix>/bin/openpkg rpm -Fvh <prefix>/RPM/PKG/a2ps-4.13b-2.2.1.*.rpm ________________________________________________________________________ References:  http://archives.neohapsis.com/archives/fulldisclosure/200...  http://www.inf.enst.fr/~demaille/a2ps/  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1170  http://www.openpkg.org/tutorial.html#regular-source  http://www.openpkg.org/tutorial.html#regular-binary  ftp://ftp.openpkg.org/release/2.2/UPD/a2ps-4.13b-2.2.1.sr...  ftp://ftp.openpkg.org/release/2.1/UPD/a2ps-4.13b-2.1.1.sr...  ftp://ftp.openpkg.org/release/2.2/UPD/  ftp://ftp.openpkg.org/release/2.1/UPD/  http://www.openpkg.org/security.html#signature ________________________________________________________________________ For security reasons, this advisory was digitally signed with the OpenPGP public key "OpenPKG <firstname.lastname@example.org>" (ID 63C4CB9F) of the OpenPKG project which you can retrieve from http://pgp.openpkg.org and hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/ for details on how to verify the integrity of this advisory. ________________________________________________________________________ -----BEGIN PGP SIGNATURE----- Comment: OpenPKG <email@example.com> iD8DBQFB67F5gHWT4GPEy58RAiuUAKCaVwm6qztuFo7Gx7aZP6ZrITKjgQCfdGrL ZrkstKQlbfIuKDISsjhjYHE= =+cr1 -----END PGP SIGNATURE----- ______________________________________________________________________ The OpenPKG Project www.openpkg.org Project Announcement List firstname.lastname@example.org
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