Out-of-bounds Read Affecting libreswan package, versions <3.32-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
4.76% (89th percentile)

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  • Snyk IDSNYK-ALPINE312-LIBRESWAN-588316
  • published21 Jul 2020
  • disclosed12 May 2020

Introduced: 12 May 2020

CVE-2020-1763  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Alpine:3.12 libreswan to version 3.32-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreswan package and not the libreswan package as distributed by Alpine. See How to fix? for Alpine:3.12 relevant fixed versions and status.

An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.

CVSS Base Scores

version 3.1