CVE-2023-1667
MEDIUMlibssh 0.9.1-0.9.5 - Authenticated Denial of Service via Re-keying Algorithm Guessing
Title source: llmDescription
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.
References (6)
Core 6
Core References
Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2182199
Vendor Advisory
http://www.libssh.org/security/advisories/CVE-2023-1667.txt
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-1667
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202312-05
Scores
CVSS v3
6.5
EPSS
0.0109
EPSS Percentile
78.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (5)
debian/debian_linux
10.0
fedoraproject/fedora
37
libssh/libssh
0.9.1 - 0.9.6
redhat/enterprise_linux
8.0
redhat/enterprise_linux
9.0
Published
May 26, 2023
Tracked Since
Feb 18, 2026