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CVE-2011-0997

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…

Impact

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.

Affected products

VendorProductAffected versions
IscDhcp
Versions 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5
DebianDebian Linux
Versions 5.0, 6.0, 7.0
CanonicalUbuntu Linux
Versions 6.06, 8.04, 9.10, 10.04, 10.10

Weakness classification

CWE-20

References