| Name | CVE-2016-2563 |
| Description | Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 816921 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| putty (PTS) | buster | 0.70-6 | fixed |
| buster (security) | 0.74-1+deb11u1~deb10u1 | fixed |
| bullseye (security), bullseye | 0.74-1+deb11u1 | fixed |
| bookworm, bookworm (security) | 0.78-2+deb12u1 | fixed |
| trixie | 0.80-1 | fixed |
| sid | 0.81-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| putty | source | (unstable) | 0.67-1 | | | 816921 |
Notes
[jessie] - putty <no-dsa> (Minor issue)
[wheezy] - putty <no-dsa> (Minor issue)
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html
https://git.tartarus.org/?p=simon/putty.git;a=commitdiff;h=bc6c15ab5f636e05b7e91883f0031a7e06117947
https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563