DSA 785-1: New libpam-ldap packages fix authentication bypass

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Debian Security Advisory DSA 785-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
August 25th, 2005 http://www.debian.org/security/faq
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Package : libpam-ldap
Vulnerability : authentication bypass
Problem-Type : remote
Debian-specific: no
CVE ID : CAN-2005-2641
CERT advisory : VU#778916

It has been discovered that libpam-ldap, the Pluggable Authentication
Module allowing LDAP interfaces, ignores the result of an attempt to
authenticate against an LDAP server that does not set an optional data
field.

The old stable distribution (woody) is not affected by this problem.

For the stable distribution (sarge) this problem has been fixed in
version 178-1sarge1.

For the unstable distribution (sid) this problem has been fixed in
version 178-1sarge1.

We recommend that you upgrade your libpam-ldap package.


Upgrade Instructions
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wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 3.1 alias sarge
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Source archives:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1.dsc
Size/MD5 checksum: 672 d669aa6f0c46e637446594350af42cc8
http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1.diff.gz
Size/MD5 checksum: 19528 2924e1797c39f05e37bafaa761ca2c96
http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178.orig.tar.gz
Size/MD5 checksum: 127074 222186c498d24a7035e8a7494fc0797d

Alpha architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_alpha.deb
Size/MD5 checksum: 59270 a6960b38195110ce4c555cf89e2cc752

AMD64 architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_amd64.deb
Size/MD5 checksum: 56984 e14265169b634d5c6ee243cc1b8cc410

ARM architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_arm.deb
Size/MD5 checksum: 55852 6a4f6cee9779f0bd45511fe4dda02245

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_i386.deb
Size/MD5 checksum: 57406 eafc9a4a7ee19e173cca4069ce822938

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_ia64.deb
Size/MD5 checksum: 65072 4de0ae7288d74d2eb7708424603b50f6

HP Precision architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_hppa.deb
Size/MD5 checksum: 60552 3eb44b515aa7fdd05376520de7ab99dd

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_m68k.deb
Size/MD5 checksum: 55992 41341e49ab1dd2b2f7c6e1365186579f

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_mips.deb
Size/MD5 checksum: 56360 3d4ad06491d46a8cbcc80236dd3edd08

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_mipsel.deb
Size/MD5 checksum: 56292 258c5c9a7b9b725c305c122a6843a4d9

PowerPC architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_powerpc.deb
Size/MD5 checksum: 57216 933ce656b572a6faaf1273eb2a5bba41

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_s390.deb
Size/MD5 checksum: 57370 217d4f36380fcecec41236ed53f9a2d6

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/libp/libpam-ldap/libpam-ldap_178-1sarge1_sparc.deb
Size/MD5 checksum: 56934 411656469f51633a23ae7e9961786fca


These files will probably be moved into the stable distribution on
its next update.

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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show lt;pkggt;' and http://packages.debian.org/lt;pkggt;

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