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CVE-2023-1667
A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to…
Medium6.5EPSS 1.3%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.3% · top 29% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
libssh
- affected libssh-2
References (6)
- https://access.redhat.com/security/cve/CVE-2023-1667 (opens in a new tab)x_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=2182199 (opens in a new tab)x_transferred
- http://www.libssh.org/security/advisories/CVE-2023-1667.txt (opens in a new tab)x_transferred
- FEDORA-2023-5fa5ca2043 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20230529 [SECURITY] [DLA 3437-1] libssh security update (opens in a new tab)mailing-listx_transferred
- GLSA-202312-05 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-1667)Record last updated .