CVE-2019-0190

Name	CVE-2019-0190
Description	A bug exists in the way mod_ssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause mod_ssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or later, due to an interaction in changes to handling of renegotiation attempts.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	920220

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
apache2 (PTS)	buster	2.4.38-3+deb10u8	fixed
	buster (security)	2.4.38-3+deb10u9	fixed
	bullseye	2.4.54-1~deb11u1	fixed
	bullseye (security)	2.4.56-1~deb11u1	fixed
	bookworm, sid	2.4.56-1	fixed

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

Package	Type	Release	Fixed Version	Debian Bugs
apache2	source	jessie	(not affected)
apache2	source	stretch	(not affected)
apache2	source	(unstable)	2.4.38-1	920220

Notes

[stretch] - apache2 <not-affected> (Only affects 2.4.37)
[jessie] - apache2 <not-affected> (Only affects 2.4.37)
https://www.openwall.com/lists/oss-security/2019/01/22/4