| Name | CVE-2013-4207 |
| Description | Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-2736-1 |
| Debian Bugs | 719070 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| filezilla (PTS) | bullseye | 3.52.2-3+deb11u1 | fixed |
| bookworm | 3.63.0-1+deb12u3 | fixed | |
| trixie | 3.68.1-1 | fixed | |
| forky, sid | 3.69.3-1 | fixed | |
| putty (PTS) | 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 | |
| forky, sid, trixie | 0.83-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| filezilla | source | (unstable) | 3.7.3-1 | low | 719070 | |
| putty | source | squeeze | 0.60+2010-02-20-1+squeeze2 | DSA-2736-1 | ||
| putty | source | wheezy | 0.62-9+deb7u1 | DSA-2736-1 | ||
| putty | source | (unstable) | 0.63-1 |
[squeeze] - filezilla <no-dsa> (Minor issue)
[wheezy] - filezilla <no-dsa> (Minor issue)
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-bignum-division-by-zero.html