CVE-2016-6303

Name	CVE-2016-6303
Description	Integer overflow in the MDC2_Update function in crypto/mdc2/mdc2dgst.c in OpenSSL before 1.1.0 allows remote attackers to cause a denial of service (out-of-bounds write and application crash) or possibly have unspecified other impact via unknown vectors.
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)
References	DLA-637-1, DSA-3673-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openssl (PTS)	buster	1.1.1n-0+deb10u3	fixed
	buster (security)	1.1.1n-0+deb10u4	fixed
	bullseye	1.1.1n-0+deb11u4	fixed
	bullseye (security)	1.1.1n-0+deb11u5	fixed
	bookworm	3.0.8-1	fixed
	sid	3.0.9-1	fixed

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

Package	Type	Release	Fixed Version	Origin
openssl	source	wheezy	1.0.1t-1+deb7u1	DLA-637-1
openssl	source	jessie	1.0.1t-1+deb8u4	DSA-3673-1
openssl	source	(unstable)	1.0.2i-1

Notes

https://git.openssl.org/?p=openssl.git;a=commit;h=55d83bf7c10c7b205fffa23fa7c3977491e56c07
https://www.openssl.org/news/secadv/20160922.txt
Fixed in 1.0.2i, 1.0.1u