DSA 750-1: New dhcpcd packages fix denial of service

New dhcpcd packages are avaialble for Debian GNU/Linux

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Debian Security Advisory DSA 750-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
July 11th, 2005 http://www.debian.org/security/faq
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Package : dhcpcd
Vulnerability : out-of-bound memory access
Problem-Type : remote
Debian-specific: no
CVE ID : CAN-2005-1848

"infamous42md" discovered that dhcpcd, a DHCP client for automatically configuring IPv4 networking, can be tricked into reading past the end of the supplied DHCP buffer which could lead to the daemon crashing.

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

For the stable distribution (sarge) this problem has been fixed in version 1.3.22pl4-21sarge1.

For the unstable distribution (sid) this problem has been fixed in version 1.3.22pl4-22.

We recommend that you upgrade your dhcpcd package.

Upgrade Instructions
- --------------------

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
- --------------------------------

Source archives:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1.dsc
Size/MD5 checksum: 592 b6f08de07c771dfa88ee4c2da213c8ef
http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1.diff.gz
Size/MD5 checksum: 44718 bde490fd50bea65991eff869db8cb947
http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4.orig.tar.gz
Size/MD5 checksum: 148273 59669a4110a2061f05c1c6fa6171bed2

Alpha architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_alpha.deb
Size/MD5 checksum: 70610 6bd6b7a893cee910bdb9cc146382f042

ARM architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_arm.deb
Size/MD5 checksum: 61322 066e0c5510629d03a56261c60e3ffeda

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_i386.deb
Size/MD5 checksum: 57394 1b376dc7cc9db55598fa231e848576e0

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_ia64.deb
Size/MD5 checksum: 78624 31cc80567333e8538ec516cdb3986e1d

HP Precision architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_hppa.deb
Size/MD5 checksum: 64312 f3558fc2bfdc41d27596f5c02aab4765

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_m68k.deb
Size/MD5 checksum: 55526 36c9b163754358f111d340b150d46f7a

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_mips.deb
Size/MD5 checksum: 62664 e624f951d018d069ef84757985f4c33e

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_mipsel.deb
Size/MD5 checksum: 62868 0c20a5f40098c62423c21ec50bb054de

PowerPC architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_powerpc.deb
Size/MD5 checksum: 59848 f2763a581130fec32fe15f37aabe0168

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_s390.deb
Size/MD5 checksum: 59668 1549b23d2e50886cbaa5848961c64745

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/d/dhcpcd/dhcpcd_1.3.22pl4-21sarge1_sparc.deb
Size/MD5 checksum: 61234 ff9565a968d5d57f8ece62fcadfeeca7


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