CVE-2020-27782

NameCVE-2020-27782
DescriptionA flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.
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

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
undertow (PTS)bookworm, sid2.2.12-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
undertowsource(unstable)2.2.4-1

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1901304
https://issues.redhat.com/browse/UNDERTOW-1824
https://github.com/undertow-io/undertow/commit/fdac349cbcd1da41fe8b9d4e7ebbab6879990c2a (2.2.4.Final)

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