CVE-2016-7053

Name	CVE-2016-7053
Description	In OpenSSL 1.1.0 before 1.1.0c, applications parsing invalid CMS structures can crash with a NULL pointer dereference. This is caused by a bug in the handling of the ASN.1 CHOICE type in OpenSSL 1.1.0 which can result in a NULL value being passed to the structure callback if an attempt is made to free certain invalid encodings. Only CHOICE structures using a callback which do not handle NULL value are affected.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openssl (PTS)	bullseye	1.1.1w-0+deb11u1	fixed
	bullseye (security)	1.1.1w-0+deb11u4	fixed
	bookworm	3.0.17-1~deb12u2	fixed
	bookworm (security)	3.0.17-1~deb12u3	fixed
	trixie	3.5.1-1	fixed
	trixie (security)	3.5.1-1+deb13u1	fixed
	forky, sid	3.5.4-1	fixed

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

Package	Type	Release	Fixed Version
openssl	source	wheezy	(not affected)
openssl	source	jessie	(not affected)
openssl	source	(unstable)	1.1.0c-1
openssl1.0	source	(unstable)	(not affected)

Notes

[jessie] - openssl <not-affected> (Only affects 1.1.0)
[wheezy] - openssl <not-affected> (Only affects 1.1.0)
- openssl1.0 <not-affected> (Only affects 1.1.0)
https://www.openssl.org/news/secadv/20161110.txt