CVE-2010-4221

Name	CVE-2010-4221
Description	Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow remote attackers to execute arbitrary code via vectors involving a TELNET IAC escape character to a (1) FTP or (2) FTPS server.
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	602279, 603511

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
proftpd-dfsg (PTS)	bullseye	1.3.7a+dfsg-12+deb11u2	fixed
	bullseye (security)	1.3.7a+dfsg-12+deb11u5	fixed
	bookworm, bookworm (security)	1.3.8+dfsg-4+deb12u4	fixed
	trixie	1.3.8.c+dfsg-4	fixed
	forky, sid	1.3.9~dfsg-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
proftpd-dfsg	source	lenny	(not affected)
proftpd-dfsg	source	(unstable)	1.3.3a-5			602279, 603511

[lenny] - proftpd-dfsg <not-affected> (Introduced in 1.3.2rc3)