high
7.5
CWE
20
Advisory Published
CVE Published
Updated

CVE-2011-0997: Input Validation

First published: Tue Mar 22 2011(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
ISC DHCP=3.0.4-b2
ISC DHCP=3.1.0-b1
ISC DHCP=3.1.0-a3
ISC DHCP=3.0.6-rc1
ISC DHCP=3.1.2-rc1
ISC DHCP=3.1.0-rc1
ISC DHCP=3.0.4-b1
ISC DHCP=3.1.0-a1
ISC DHCP=3.0.1-rc12
ISC DHCP=3.0
ISC DHCP=3.0.2-b1
ISC DHCP=3.0.3-b1
ISC DHCP=3.0.1-rc1
ISC DHCP=3.0.4-b3
ISC DHCP=3.0.2-rc1
ISC DHCP=3.0.1-rc7
ISC DHCP=3.1-esv
ISC DHCP=3.0.2-rc3
ISC DHCP=3.0.1-rc2
ISC DHCP=3.1.3-b1
ISC DHCP=3.0.1-rc14
ISC DHCP=3.0.1-rc6
ISC DHCP=3.0.2-rc2
ISC DHCP=3.0.1-rc13
ISC DHCP=3.0.1-rc9
ISC DHCP=3.0.3-b3
ISC DHCP=3.1.1-rc1
ISC DHCP=3.1.0-a2
ISC DHCP=3.0.1-rc8
ISC DHCP=3.0.3-b2
ISC DHCP=3.1.2-b1
ISC DHCP=3.1.3-rc1
ISC DHCP=3.0.1-rc10
ISC DHCP=3.0.5-rc1
ISC DHCP=3.0.1-rc11
ISC DHCP=3.1.1-rc2
ISC DHCP=3.0.4-rc1
ISC DHCP=3.1.0-b2
ISC DHCP=3.0.1-rc5
ISC DHCP=3.0.1
ISC DHCP=3.0.2
ISC DHCP=3.0.4
ISC DHCP=3.0.5
ISC DHCP=3.1.0
ISC DHCP=3.1.2
ISC DHCP=3.1.3
ISC DHCP=3.0.3
ISC DHCP=4.2.0-b2
ISC DHCP=4.2.0-a2
ISC DHCP=4.2.0-b1
ISC DHCP=4.2.1-rc1
ISC DHCP=4.2.0-a1
ISC DHCP=4.1-esv-rc1
ISC DHCP=4.2.1-b1
ISC DHCP=4.2.0-rc1
ISC DHCP=4.2.0-p1
ISC DHCP=4.1-esv
ISC DHCP=4.2.0
ISC DHCP=4.2.1
Debian Debian Linux=5.0
Debian Debian Linux=7.0
Debian Debian Linux=6.0
Canonical Ubuntu Linux=10.10
Canonical Ubuntu Linux=6.06
Canonical Ubuntu Linux=8.04
Canonical Ubuntu Linux=10.04
Canonical Ubuntu Linux=9.10

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=689832

Remedy

https://www.isc.org/software/dhcp/advisories/cve-2011-0997

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