CVE catalog
CVE-2017-18594
nmap: CVE-2017-18594
- Severity
- Medium · CVSS 6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.16% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | nmap | sid | 7.991+dfsg-1 | fixed |
| Debian | nmap | forky | 7.99+dfsg-2 | fixed |
| Debian | nmap | trixie | 7.95+dfsg-3 | fixed |
| Debian | nmap | bookworm | 7.93+dfsg1-1 | fixed |
| Alpine | nmap | 3.10 | 7.70-r4 | fixed |
| Alpine | nmap | 3.11 | 7.80-r0 | fixed |
| Alpine | nmap | 3.12 | 7.80-r0 | fixed |
| Alpine | nmap | 3.13 | 7.80-r0 | fixed |
| Alpine | nmap | 3.14 | 7.80-r0 | fixed |
| Alpine | nmap | 3.15 | 7.80-r0 | fixed |
| Alpine | nmap | 3.16 | 7.80-r0 | fixed |
| Alpine | nmap | 3.17 | 7.80-r0 | fixed |
| Alpine | nmap | 3.18 | 7.80-r0 | fixed |
| Alpine | nmap | 3.19 | 7.80-r0 | fixed |
| Alpine | nmap | 3.20 | 7.80-r0 | fixed |
| Alpine | nmap | 3.21 | 7.80-r0 | fixed |
| Alpine | nmap | 3.22 | 7.80-r0 | fixed |
| Alpine | nmap | 3.23 | 7.80-r0 | fixed |
| Alpine | nmap | 3.24 | 7.80-r0 | fixed |
| Alpine | nmap | 3.7 | 7.60-r3 | fixed |
| Alpine | nmap | 3.8 | 7.70-r2 | fixed |
| Alpine | nmap | 3.9 | 7.70-r4 | fixed |
| Suse | nmap | linux enterprise module for basesystem 15 | 7.70-3.12.1 | fixed |
| Suse | nmap | linux enterprise module for basesystem 15 sp1 | 7.70-3.12.1 | fixed |
| Suse | nmap | linux enterprise module for package hub 15 | 7.70-3.12.1 | fixed |
| Opensuse | nmap | leap 15.1 | 7.70-lp151.3.9.1 | fixed |
| Opensuse | nmap | tumbleweed | 7.92-4.1 | fixed |
| Opensuse | nmap | leap 15.0 | 7.70-lp150.2.9.1 | fixed |
| Suse | nmap | linux enterprise module for basesystem 15 sp2 | 7.70-3.12.1 | fixed |
| Suse | nmap | linux enterprise module for package hub 15 sp1 | 7.70-3.12.1 | fixed |
| Suse | nmap | linux enterprise module for package hub 15 sp2 | 7.70-3.12.1 | fixed |
| Ubuntu | nmap | 14.04 | 6.40-0.1ubuntu1 | vulnerable |
| Ubuntu | nmap | 14.04 | 6.40-0.2ubuntu1 | vulnerable |
| Ubuntu | nmap | 16.04 | 6.47-7 | vulnerable |
| Ubuntu | nmap | 16.04 | 7.01-2ubuntu1 | vulnerable |
| Ubuntu | nmap | 16.04 | 7.01-2ubuntu2 | vulnerable |
| Ubuntu | nmap | 18.04 | 7.60-1ubuntu1 | vulnerable |
| Ubuntu | nmap | 18.04 | 7.60-1ubuntu2 | vulnerable |
| Ubuntu | nmap | 18.04 | 7.60-1ubuntu3 | vulnerable |
| Ubuntu | nmap | 18.04 | 7.60-1ubuntu4 | vulnerable |
| Ubuntu | nmap | 18.04 | 7.60-1ubuntu5 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | nmap | source | sid | 7.80+dfsg1-1 | unimportant | Not reported | Not reported |
| Debian | nmap | source | forky | 7.80+dfsg1-1 | unimportant | Not reported | Not reported |
| Debian | nmap | source | trixie | 7.80+dfsg1-1 | unimportant | Not reported | Not reported |
| Debian | nmap | source | bookworm | 7.80+dfsg1-1 | unimportant | Not reported | Not reported |
| Alpine | nmap | apk | 3.10 | 7.70-r4 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.11 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.12 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.13 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.14 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.15 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.16 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.17 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.18 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.19 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.20 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.21 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.22 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.23 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.24 | 7.80-r0 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.7 | 7.60-r3 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.8 | 7.70-r2 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Alpine | nmap | apk | 3.9 | 7.70-r4 | Not reported | ALPINE-CVE-2017-18594 | Not reported |
| Suse | nmap | rpm | linux enterprise module for basesystem 15 | 7.70-3.12.1 | Not reported | SUSE-SU-2019:2425-1 | Not reported |
| Suse | nmap | rpm | linux enterprise module for basesystem 15 sp1 | 7.70-3.12.1 | Not reported | SUSE-SU-2019:2425-1 | Not reported |
| Suse | nmap | rpm | linux enterprise module for package hub 15 | 7.70-3.12.1 | Not reported | SUSE-SU-2019:2425-1 | Not reported |
| Opensuse | nmap | rpm | leap 15.1 | 7.70-lp151.3.9.1 | Not reported | OPENSUSE-SU-2019:2200-1 | Not reported |
| Opensuse | nmap | rpm | tumbleweed | 7.92-4.1 | Not reported | OPENSUSE-SU-2024:11750-1 | Not reported |
| Opensuse | nmap | rpm | leap 15.0 | 7.70-lp150.2.9.1 | Not reported | OPENSUSE-SU-2019:2198-1 | Not reported |
| Suse | nmap | rpm | linux enterprise module for basesystem 15 sp2 | 7.70-3.12.1 | Not reported | SUSE-SU-2019:2425-2 | Not reported |
| Suse | nmap | rpm | linux enterprise module for package hub 15 sp1 | 7.70-3.12.1 | Not reported | SUSE-SU-2019:2425-2 | Not reported |
| Suse | nmap | rpm | linux enterprise module for package hub 15 sp2 | 7.70-3.12.1 | Not reported | SUSE-SU-2019:2425-2 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ncat]Fixed
Source package: [nmap]
Details (4)
7.93+dfsg1-1· amd64 · bookwormFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.93+dfsg1-1· arm64 · bookwormFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
- [ndiff]Fixed
Source package: [nmap]
Details (4)
7.93+dfsg1-1· all · bookwormFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.93+dfsg1-1· all · bookwormFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· all · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· all · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
- [nmap]Fixed
Details (4)
7.93+dfsg1-1· amd64 · bookwormFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.93+dfsg1-1· arm64 · bookwormFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
- [nmap-common]Fixed
Source package: [nmap]
Details (4)
7.93+dfsg1-1· all · bookwormFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.93+dfsg1-1· all · bookwormFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· all · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· all · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
- [zenmap]Fixed
Source package: [nmap]
Details (2)
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· all · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
7.94+git20230807.3be01efb1+dfsg-4~bpo12+1· all · bookworm-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · bookworm; dsa · nmap · debian · 12
[Debian 13 (Trixie)]
- [ncat]Fixed
Source package: [nmap]
Details (4)
7.95+dfsg-3· amd64 · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.95+dfsg-3· arm64 · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
- [ndiff]Fixed
Source package: [nmap]
Details (4)
7.95+dfsg-3· all · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.95+dfsg-3· all · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
- [nmap]Fixed
Details (4)
7.95+dfsg-3· amd64 · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.95+dfsg-3· arm64 · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
- [nmap-common]Fixed
Source package: [nmap]
Details (4)
7.95+dfsg-3· all · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.95+dfsg-3· all · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
- [zenmap]Fixed
Source package: [nmap]
Details (4)
7.95+dfsg-3· all · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.95+dfsg-3· all · trixieFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
7.98+dfsg-1~bpo13+1· all · trixie-backportsFixed · Fixed:
7.80+dfsg1-1dsa · nmap · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2019_2425-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2017-18594]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2017-18594]
- [https://osv.dev/vulnerability/SUSE-SU-2019:2425-1]
- [https://osv.dev/vulnerability/SUSE-SU-2019:2425-2]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2017-18594]
- [https://osv.dev/vulnerability/openSUSE-SU-2019:2198-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2019:2200-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:11750-1]
- [https://security-tracker.debian.org/tracker/CVE-2017-18594]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]