6.5
CVSSv3

CVE-2023-1667

Published: 26/05/2023 Updated: 22/12/2023
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 0

Vulnerability Summary

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.

Vulnerability Trend

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libssh libssh

fedoraproject fedora 37

debian debian linux 10.0

redhat enterprise linux 8.0

redhat enterprise linux 9.0

Vendor Advisories

Debian Bug report logs - #1035832 libssh: CVE-2023-1667 CVE-2023-2283 Package: src:libssh; Maintainer for src:libssh is Laurent Bigonville <bigon@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Tue, 9 May 2023 20:33:02 UTC Severity: important Tags: pending, security, upstream Found in versi ...
Two security issues have been discovered in libssh, a tiny C SSH library: CVE-2023-1667 Philip Turnbull discovered a NULL pointer dereference which could result in denial of service CVE-2023-2283 Kevin Backhouse discovered that pki_verify_data_signature() may fail to correctly validate authentication in memory pressure situati ...
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