CVE catalog
CVE-2023-1667
libssh: CVE-2023-1667
- Severity
- Medium · CVSS 4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.31% · Oct 25, 2026
A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.
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 | libssh | sid | 0.12.2-1 | fixed |
| Debian | libssh | forky | 0.12.2-1 | fixed |
| Debian | libssh | trixie | 0.11.5-0+deb13u1 | fixed |
| Debian | libssh | trixie-security | 0.11.5-0+deb13u1 | fixed |
| Debian | libssh | bookworm | 0.10.6-0+deb12u2 | fixed |
| Debian | libssh | bookworm-security | 0.10.6-0+deb12u3 | fixed |
| Ubuntu | libssh | pro | 0.7.5-1 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1build1 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.1 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.2 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.5 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.6 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.7 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm3 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm4 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm5 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm6 | vulnerable |
| Ubuntu | libssh | pro | 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm7 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.0-1ubuntu1 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.0-1ubuntu4 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.0-1ubuntu5 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu1 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu2 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu2.1 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu2.2 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu2.3 | fixed |
| Ubuntu | libssh | 22.04 | 0.9.6-1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-1build1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2build1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2ubuntu0.22.04.1 | fixed |
| Ubuntu | libssh | 20.04 | 0.9.0-1ubuntu1 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.0-1ubuntu4 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.0-1ubuntu5 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu1 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu2 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu2.1 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu2.2 | vulnerable |
| Ubuntu | libssh | 20.04 | 0.9.3-2ubuntu2.3 | fixed |
| Ubuntu | libssh | 22.04 | 0.9.6-1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-1build1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2build1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2ubuntu0.22.04.1 | fixed |
| Suse | libssh | linux enterprise micro 5.3 | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | linux enterprise micro 5.4 | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | linux enterprise micro 5.5 | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | linux enterprise module for basesystem 15 sp5 | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | linux enterprise high performance computing 15 sp4-espos | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | linux enterprise high performance computing 15 sp4-ltss | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | linux enterprise real time 15 sp4 | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | linux enterprise server 15 sp4-ltss | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | linux enterprise server for sap applications 15 sp4 | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | manager proxy 4.3 | 0.9.8-150400.3.3.1 | fixed |
| Suse | libssh | manager server 4.3 | 0.9.8-150400.3.3.1 | fixed |
| Opensuse | libssh | leap micro 5.3 | 0.9.8-150400.3.3.1 | fixed |
| Opensuse | libssh | leap micro 5.4 | 0.9.8-150400.3.3.1 | fixed |
| Opensuse | libssh | leap 15.5 | 0.9.8-150400.3.3.1 | fixed |
| Opensuse | libssh | tumbleweed | 0.10.5-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libssh | source | sid | 0.10.5-1 | not yet assigned | Not reported | [1035832] |
| Debian | libssh | source | forky | 0.10.5-1 | not yet assigned | Not reported | [1035832] |
| Debian | libssh | source | trixie | 0.10.5-1 | not yet assigned | Not reported | [1035832] |
| Debian | libssh | source | bookworm | 0.10.5-1 | not yet assigned | Not reported | [1035832] |
| Ubuntu | libssh | deb | 20.04 | 0.9.3-2ubuntu2.3 | Not reported | UBUNTU-CVE-2023-1667 | Not reported |
| Ubuntu | libssh | deb | 22.04 | 0.9.6-2ubuntu0.22.04.1 | Not reported | UBUNTU-CVE-2023-1667 | Not reported |
| Ubuntu | libssh | deb | 20.04 | 0.9.3-2ubuntu2.3 | Not reported | USN-6138-1 | Not reported |
| Ubuntu | libssh | deb | 22.04 | 0.9.6-2ubuntu0.22.04.1 | Not reported | USN-6138-1 | Not reported |
| Suse | libssh | rpm | linux enterprise micro 5.3 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | linux enterprise micro 5.4 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | linux enterprise micro 5.5 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | linux enterprise module for basesystem 15 sp5 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | linux enterprise high performance computing 15 sp4-espos | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | linux enterprise high performance computing 15 sp4-ltss | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | linux enterprise real time 15 sp4 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | linux enterprise server 15 sp4-ltss | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | linux enterprise server for sap applications 15 sp4 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | manager proxy 4.3 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Suse | libssh | rpm | manager server 4.3 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Opensuse | libssh | rpm | leap micro 5.3 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Opensuse | libssh | rpm | leap micro 5.4 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Opensuse | libssh | rpm | leap 15.5 | 0.9.8-150400.3.3.1 | Not reported | SUSE-SU-2024:0140-1 | Not reported |
| Opensuse | libssh | rpm | tumbleweed | 0.10.5-1.1 | Not reported | OPENSUSE-SU-2024:12914-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://access.redhat.com/errata/RHSA-2023:3839]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2023_3839.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-1667]
- [https://osv.dev/vulnerability/DSA-5409-1]
- [https://osv.dev/vulnerability/SUSE-SU-2024:0140-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-1667]
- [https://osv.dev/vulnerability/USN-6138-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12914-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-1667]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2112.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]