CVE-2015-2157

Name	CVE-2015-2157
Description	The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-173-1, DSA-3190-1
Debian Bugs	779488

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
putty (PTS)	buster	0.70-6	fixed
	bullseye	0.74-1	fixed
	bookworm	0.78-2	fixed
	sid, trixie	0.79-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
putty	source	squeeze	0.60+2010-02-20-1+squeeze3	DLA-173-1
putty	source	wheezy	0.62-9+deb7u2	DSA-3190-1
putty	source	(unstable)	0.63-10		779488

http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html