CVE-2023-1667
Libssh NULL Pointer Dereference DoS 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.
INFO
Published Date :
May 26, 2023, 6:15 p.m.
Last Modified :
Dec. 22, 2023, 10:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2023-1667 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2023-1667
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-1667.
| URL | Resource |
|---|---|
| http://www.libssh.org/security/advisories/CVE-2023-1667.txt | Vendor Advisory |
| https://access.redhat.com/security/cve/CVE-2023-1667 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2182199 | Issue Tracking Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/ | |
| https://security.gentoo.org/glsa/202312-05 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Shell Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-1667 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-1667 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 22, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://security.gentoo.org/glsa/202312-05 [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/ [No types assigned] Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/ -
Initial Analysis by [email protected]
Jun. 06, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.libssh.org/security/advisories/CVE-2023-1667.txt No Types Assigned http://www.libssh.org/security/advisories/CVE-2023-1667.txt Vendor Advisory Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-1667 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-1667 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2182199 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2182199 Issue Tracking, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/ Mailing List, Third Party Advisory Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* versions from (including) 0.9.1 up to (including) 0.9.6 *cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* versions from (including) 0.10.0 up to (including) 0.10.4 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 30, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html [No Types Assigned] -
CVE Modified by [email protected]
May. 28, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-1667 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-1667
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.01%
score
0.46242
percentile