Out-of-bounds Read Affecting libslirp package, versions <4.4.0-1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
1.89% (78th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-LIBSLIRP-19339090
  • published27 Aug 2026
  • disclosed26 Nov 2020

Introduced: 26 Nov 2020

CVE-2020-29130  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Echo:latest libslirp to version 4.4.0-1 or higher.

NVD Description

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

slirp.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.

CVSS Base Scores

version 3.1