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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-2283 Detail

Description

A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html CVE, Inc., Red Hat
https://access.redhat.com/security/cve/CVE-2023-2283 CVE, Inc., Red Hat Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2189736 CVE, Inc., Red Hat Issue Tracking  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN/ CVE, Inc., Red Hat
https://security.gentoo.org/glsa/202312-05 CVE, Inc., Red Hat
https://security.netapp.com/advisory/ntap-20240201-0005/ CVE, Inc., Red Hat
https://www.libssh.org/security/advisories/CVE-2023-2283.txt CVE, Inc., Red Hat Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-287 Improper Authentication cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-2283
NVD Published Date:
05/26/2023
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.