DescriptionAn exploitable denial-of-service vulnerability exists in the way CoTURN web server parses POST requests. A specially crafted HTTP POST request can lead to server crash and denial of service. An attacker needs to send an HTTP 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 severitymedium
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)
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
coturnsourcejessie(not affected)


[buster] - coturn <no-dsa> (Minor issue)
[stretch] - coturn <no-dsa> (Minor issue)
[jessie] - coturn <not-affected> (Vulnerable code introduced later)

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