CVE-2017-18594
7.5
HIGH
CVSS 3.1
EPSS 2.0%
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.
How to fix CVE-2017-18594
To remediate CVE-2017-18594, upgrade the affected package to a fixed version below.
- Alpine/nmap—upgrade to 7.70-r4 or later
- Debian/nmap—upgrade to 7.80+dfsg1-1 or later
Is CVE-2017-18594 being exploited?
Low — EPSS is 2.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 7.70-r4
- from 0, < 7.80+dfsg1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |