CVE-2012-3523

Name	CVE-2012-3523
Description	The STARTTLS implementation in nnrpd in INN before 2.5.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.
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)
Debian Bugs	685581

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
inn (PTS)	bullseye	1:1.7.2q-46	fixed
	bookworm	1:1.7.2q-47	fixed
	forky, sid, trixie	1:1.7.2q-52	fixed
inn2 (PTS)	bullseye	2.6.4-2	fixed
	bookworm	2.7.1-1+deb12u1	fixed
	trixie	2.7.3-1	fixed
	forky, sid	2.7.4~20250809-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
inn	source	(unstable)	(not affected)
inn2	source	(unstable)	2.5.3-1	low		685581

- inn <not-affected> (STARTTLS was introduced in 2.3, see bug #685581)
[squeeze] - inn2 <no-dsa> (Minor issue)