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CVE-2023-1667

Good to know:

Date: May 26, 2023

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.

Language: C

Severity Score

6.5

Related Resources (9)

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/

Url: https://access.redhat.com/security/cve/CVE-2023-1667

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-1667

Url: http://www.libssh.org/security/advisories/CVE-2023-1667.txt

Url: https://security.gentoo.org/glsa/202312-05

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2182199

Url: https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/

Url: https://www.mend.io/vulnerability-database/CVE-2023-1667

Severity Score

6.5

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

Upgrade Version

Upgrade to version libssh-0.9.7,libssh-0.10.5

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

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