CVE-2015-2157

NameCVE-2015-2157
DescriptionThe (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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-173-1, DSA-3190-1
Debian Bugs779488

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
putty (PTS)jessie, jessie (lts)0.63-10+deb8u2fixed
stretch (security), stretch (lts), stretch0.67-3+deb9u1fixed
buster (security), buster, buster (lts)0.74-1+deb11u1~deb10u2fixed
bullseye0.74-1+deb11u2fixed
bullseye (security)0.74-1+deb11u1fixed
bookworm0.78-2+deb12u2fixed
bookworm (security)0.78-2+deb12u1fixed
sid, trixie0.82-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
puttysourcesqueeze0.60+2010-02-20-1+squeeze3DLA-173-1
puttysourcewheezy0.62-9+deb7u2DSA-3190-1
puttysource(unstable)0.63-10779488

Notes

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

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