CVE-2011-0997

Published: 08 April 2011

dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.

Status

Notes

a couple of fixes post isc release are included in redhat's bug
patches are from Marius Tomaschewski

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0997
• http://www.isc.org/software/dhcp/advisories/cve-2011-0997
• https://usn.ubuntu.com/usn/usn-1108-1
• NVD
• Launchpad
• Debian

Bugs

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-0997
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621099