Vulnerability Monitor

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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 commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.


Published

2011-04-08T15:17:27.387

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-20

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application isc dhcp 3.0 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.1 Yes
Application isc dhcp 3.0.2 Yes
Application isc dhcp 3.0.2 Yes
Application isc dhcp 3.0.2 Yes
Application isc dhcp 3.0.2 Yes
Application isc dhcp 3.0.2 Yes
Application isc dhcp 3.0.3 Yes
Application isc dhcp 3.0.3 Yes
Application isc dhcp 3.0.3 Yes
Application isc dhcp 3.0.3 Yes
Application isc dhcp 3.0.4 Yes
Application isc dhcp 3.0.4 Yes
Application isc dhcp 3.0.4 Yes
Application isc dhcp 3.0.4 Yes
Application isc dhcp 3.0.4 Yes
Application isc dhcp 3.0.5 Yes
Application isc dhcp 3.0.5 Yes
Application isc dhcp 3.0.6 Yes
Application isc dhcp 3.1-esv Yes
Application isc dhcp 3.1.0 Yes
Application isc dhcp 3.1.0 Yes
Application isc dhcp 3.1.0 Yes
Application isc dhcp 3.1.0 Yes
Application isc dhcp 3.1.0 Yes
Application isc dhcp 3.1.0 Yes
Application isc dhcp 3.1.0 Yes
Application isc dhcp 3.1.1 Yes
Application isc dhcp 3.1.1 Yes
Application isc dhcp 3.1.2 Yes
Application isc dhcp 3.1.2 Yes
Application isc dhcp 3.1.2 Yes
Application isc dhcp 3.1.3 Yes
Application isc dhcp 3.1.3 Yes
Application isc dhcp 3.1.3 Yes
Application isc dhcp 4.1-esv Yes
Application isc dhcp 4.1-esv Yes
Application isc dhcp 4.2.0 Yes
Application isc dhcp 4.2.0 Yes
Application isc dhcp 4.2.0 Yes
Application isc dhcp 4.2.0 Yes
Application isc dhcp 4.2.0 Yes
Application isc dhcp 4.2.0 Yes
Application isc dhcp 4.2.0 Yes
Application isc dhcp 4.2.1 Yes
Application isc dhcp 4.2.1 Yes
Application isc dhcp 4.2.1 Yes
Operating System debian debian_linux 5.0 Yes
Operating System debian debian_linux 6.0 Yes
Operating System debian debian_linux 7.0 Yes
Operating System canonical ubuntu_linux 6.06 Yes
Operating System canonical ubuntu_linux 8.04 Yes
Operating System canonical ubuntu_linux 9.10 Yes
Operating System canonical ubuntu_linux 10.04 Yes
Operating System canonical ubuntu_linux 10.10 Yes

References