CVE-2015-5309

Name	CVE-2015-5309
Description	Integer overflow in the terminal emulator in PuTTY before 0.66 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via an ECH (erase characters) escape sequence with a large parameter value, which triggers a buffer underflow.
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)
References	DLA-347-1, DSA-3409-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
putty (PTS)	bookworm	0.78-2+deb12u2	fixed
	bookworm (security)	0.78-2+deb12u1	fixed
	trixie	0.83-3	fixed
	forky, sid	0.85-3	fixed

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

Package	Type	Release	Fixed Version	Origin
putty	source	squeeze	0.60+2010-02-20-1+squeeze4	DLA-347-1
putty	source	wheezy	0.62-9+deb7u3	DSA-3409-1
putty	source	jessie	0.63-10+deb8u1	DSA-3409-1
putty	source	(unstable)	0.66-1

Notes

http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.html
https://git.tartarus.org/?p=simon/putty.git;a=commitdiff;h=6056396f77cafc7e40da4d09f1d6212408dcb065