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[slackware-security]  dhcpcd DoS (SSA:2005-255-01)

New dhcpcd packages are available for Slackware 8.1, 9.0, 9.1, 10.0,
10.1, and -current to fix a minor security issue.  The dhcpcd daemon
can be tricked into reading past the end of the DHCP buffer by a
malicious DHCP server, which causes the dhcpcd daemon to crash and
results in a denial of service.  Of course, a malicious DHCP server
could simply give you an IP address that wouldn't work, too, such as
127.0.0.1, but since people have been asking about this issue, here's
a fix, and that's the extent of the impact.  In other words, very
little real impact.

Even less detail about this issue may be found in the Common
Vulnerabilities and Exposures (CVE) database:

  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1848

Here are the details from the Slackware 10.1 ChangeLog:
+--------------------------+
patches/packages/dhcpcd-1.3.22pl4-i486-2.tgz:  Patched an issue where a
  remote attacker can cause dhcpcd to crash.
  For more information, see:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1848
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Updated package for Slackware 8.1:
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/packages/dhcpcd-1.3.22pl4-i386-2.tgz

Updated package for Slackware 9.0:
ftp://ftp.slackware.com/pub/slackware/slackware-9.0/patches/packages/dhcpcd-1.3.22pl4-i386-2.tgz

Updated package for Slackware 9.1:
ftp://ftp.slackware.com/pub/slackware/slackware-9.1/patches/packages/dhcpcd-1.3.22pl4-i486-2.tgz

Updated package for Slackware 10.0:
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/dhcpcd-1.3.22pl4-i486-2.tgz

Updated package for Slackware 10.1:
ftp://ftp.slackware.com/pub/slackware/slackware-10.1/patches/packages/dhcpcd-1.3.22pl4-i486-2.tgz

Updated package for Slackware -current:


MD5 signatures:
+-------------+

Slackware 8.1 package:
44b66bd3cd5c40462487d712d4a71658  dhcpcd-1.3.22pl4-i386-2.tgz

Slackware 9.0 package:
8da58d01be00250353e5b2a170f62cc8  dhcpcd-1.3.22pl4-i386-2.tgz

Slackware 9.1 package:
b6cd305e1958850aef13eb33e5117cc0  dhcpcd-1.3.22pl4-i486-2.tgz

Slackware 10.0 package:
ec17f5bd67d70f5657adf7342a41e167  dhcpcd-1.3.22pl4-i486-2.tgz

Slackware 10.1 package:
38d0418326a302e536e21a05e6bdb01f  dhcpcd-1.3.22pl4-i486-2.tgz

Slackware -current package:
4634de215bbdd2e9d2affc673ff38d3a  dhcpcd-1.3.22pl4-i486-2.tgz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg dhcpcd-1.3.22pl4-i486-2.tgz


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