Out-of-Bounds Affecting dhcp package, versions <4.4.1-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-ALPINE320-DHCP-7008800
  • published23 May 2024
  • disclosed9 Oct 2019

Introduced: 9 Oct 2019

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

How to fix?

Upgrade Alpine:3.20 dhcp to version 4.4.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dhcp package and not the dhcp package as distributed by Alpine. See How to fix? for Alpine:3.20 relevant fixed versions and status.

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

CVSS Base Scores

version 3.1