Vulnerability 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.
CVSS Score
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libssh | Libssh | >= 0.9.1, <= 0.9.6 |
| Fedoraproject | Fedora | 37 |
| Debian | Debian Linux | 10.0 |
| Redhat | Enterprise Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://www.libssh.org/security/advisories/CVE-2023-1667.txtVendor Advisory
- https://access.redhat.com/security/cve/CVE-2023-1667Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2182199Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00029.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202312-05
- http://www.libssh.org/security/advisories/CVE-2023-1667.txtVendor Advisory
- https://access.redhat.com/security/cve/CVE-2023-1667Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2182199Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00029.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202312-05
FAQ
What is CVE-2023-1667?
CVE-2023-1667 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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.
How severe is CVE-2023-1667?
CVE-2023-1667 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-1667?
Check the references section above for vendor advisories and patch information. Affected products include: Libssh Libssh, Fedoraproject Fedora, Debian Debian Linux, Redhat Enterprise Linux.