Use After Free Affecting slirp4netns package, versions <0.4.5-3.9.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
2.36% (83rd percentile)

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  • Snyk IDSNYK-SLES151-SLIRP4NETNS-2712142
  • published14 Apr 2022
  • disclosed6 May 2020

Introduced: 6 May 2020

CVE-2020-1983  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 slirp4netns to version 0.4.5-3.9.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream slirp4netns package and not the slirp4netns package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.

CVSS Base Scores

version 3.1