From:
[email protected]
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- ------------------------------------------------------------------------- Debian Security Advisory DSA-2216-1
[email protected] http://www.debian.org/security/ Nico Golde
April 10, 2011
http://www.debian.org/security/faq
- -------------------------------------------------------------------------
Package : isc-dhcp
Vulnerability : missing input sanitization
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-0997
Debian bug : 621099
Sebastian Krahmer and Marius Tomaschewski discovered that dhclient of
isc-dhcp, a DHCP client, is not properly filtering shell meta-characters
in certain options in DHCP server responses. These options are reused in
an insecure fashion by dhclient scripts. This allows an attacker to execute arbitrary commands with the privileges of such a process by sending crafted DHCP options to a client using a rogue server.
For the oldstable distribution (lenny), this problem has been fixed in additional update for dhcp3.
For the stable distribution (squeeze), this problem has been fixed in
version 4.1.1-P1-15+squeeze2.
For the testing distribution (wheezy), this problem will be fixed soon.
For the unstable distribution (sid), this problem has been fixed in
version 4.1.1-P1-16.1.
We recommend that you upgrade your isc-dhcp packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:
http://www.debian.org/security/
Mailing list:
[email protected]
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