| Name | CVE-2017-18594 |
| Description | nse_libssh2.cc in Nmap 7.70 is subject to a denial of service condition due to a double free when an SSH connection fails, as demonstrated by a leading \n character to ssh-brute.nse or ssh-auth-methods.nse. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| nmap (PTS) | buster | 7.70+dfsg1-6+deb10u2 | vulnerable |
| bullseye | 7.91+dfsg1+really7.80+dfsg1-2 | fixed |
| bookworm | 7.93+dfsg1-1 | fixed |
| trixie | 7.94+git20230807.3be01efb1+dfsg-2 | fixed |
| sid | 7.94+git20230807.3be01efb1+dfsg-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| nmap | source | (unstable) | 7.80+dfsg1-1 | unimportant | | |
Notes
https://github.com/nmap/nmap/commit/350bbe0597d37ad67abe5fef8fba984707b4e9ad
https://github.com/nmap/nmap/issues/1077
https://github.com/nmap/nmap/issues/1227
Crash in CLI tool, no security impact