CVE-2015-5309

NameCVE-2015-5309
DescriptionInteger 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-347-1, DSA-3409-1

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, trixie0.82-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
puttysourcesqueeze0.60+2010-02-20-1+squeeze4DLA-347-1
puttysourcewheezy0.62-9+deb7u3DSA-3409-1
puttysourcejessie0.63-10+deb8u1DSA-3409-1
puttysource(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

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