| 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, LWN, oss-sec, fulldisc, 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) | jessie, jessie (lts) | 0.63-10+deb8u2 | fixed |
| stretch (security), stretch (lts), stretch | 0.67-3+deb9u1 | fixed |
| buster (security), buster, buster (lts) | 0.74-1+deb11u1~deb10u2 | fixed |
| bullseye | 0.74-1+deb11u2 | fixed |
| bullseye (security) | 0.74-1+deb11u1 | fixed |
| bookworm | 0.78-2+deb12u2 | fixed |
| bookworm (security) | 0.78-2+deb12u1 | fixed |
| sid, trixie | 0.81-3 | fixed |
The information below is based on the following data on fixed versions.
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