Package : dhcp3
Vulnerability : several
Problem type : remote
Debian-specific: no
CVE Id(s) : CVE-2009-0692 CVE-2009-1892
CERT advisory : VU#410676
Several remote vulnerabilities have been discovered in ISC's DHCP implementation:
It was discovered that dhclient does not properly handle overlong
subnet mask options, leading to a stack-based buffer overflow and
possible arbitrary code execution. (CVE-2009-0692)
Christoph Biedl discovered that the DHCP server may terminate when
receiving certain well-formed DHCP requests, provided that the server configuration mixes host definitions using "dhcp-client-identifier"
and "hardware ethernet". This vulnerability only affects the lenny
versions of dhcp3-server and dhcp3-server-ldap. (CVE-2009-1892)
For the old stable distribution (etch), these problems have been fixed
in version 3.0.4-13+etch2.
For the stable distribution (lenny), this problem has been fixed in
version 3.1.1-6+lenny2.
For the unstable distribution (sid), these problems will be fixed
soon.
We recommend that you upgrade your dhcp3 packages.
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 4.0 alias etch
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