Improper Input Validation Affecting dhcp package, versions [,4.2.1)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Mature
EPSS
91.61% (100th percentile)

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  • Snyk IDSNYK-UNMANAGED-DHCP-2374415
  • published26 Jan 2022
  • disclosed8 Apr 2011
  • creditUnknown

Introduced: 8 Apr 2011

CVE-2011-0997  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade dhcp to version 4.2.1 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation 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.

References

CVSS Scores

version 3.1