Out-of-Bounds Affecting dhcp package, versions [4.1.0,4.1.2][4.2.0,4.2.8)[4.3.0,4.3.6)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-UNMANAGED-DHCP-2374417
  • published26 Jan 2022
  • disclosed9 Oct 2019
  • creditUnknown

Introduced: 9 Oct 2019

CVE-2018-5732  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade dhcp to version 4.2.8, 4.3.6 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-Bounds. Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0

References

CVSS Scores

version 3.1