CVE-2020-6061

NameCVE-2020-6061
DescriptionAn exploitable heap overflow vulnerability exists in the way CoTURN 4.5.1.1 web server parses POST requests. A specially crafted HTTP POST request can lead to information leaks and other misbehavior. An attacker needs to send an HTTPS request to trigger this vulnerability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh
Debian Bugs951876

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
coturn (PTS)jessie4.2.1.2-1fixed
jessie (security)4.2.1.2-1+deb8u1fixed
stretch (security), stretch4.5.0.5-1+deb9u1vulnerable
bullseye, sid, buster4.5.1.1-1.1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
coturnsource(unstable)(unfixed)951876
coturnsourcejessie(not affected)

Notes

[buster] - coturn <no-dsa> (Minor issue)
[stretch] - coturn <no-dsa> (Minor issue)
[jessie] - coturn <not-affected> (Vulnerable code introduced later)
https://talosintelligence.com/vulnerability_reports/TALOS-2020-0984
https://github.com/coturn/coturn/commit/51a7c2b9bf924890c7a3ff4db9c4976c5a93340a

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