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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-22742 Detail

Description

libgit2 is a cross-platform, linkable library implementation of Git. When using an SSH remote with the optional libssh2 backend, libgit2 does not perform certificate checking by default. Prior versions of libgit2 require the caller to set the `certificate_check` field of libgit2's `git_remote_callbacks` structure - if a certificate check callback is not set, libgit2 does not perform any certificate checking. This means that by default - without configuring a certificate check callback, clients will not perform validation on the server SSH keys and may be subject to a man-in-the-middle attack. Users are encouraged to upgrade to v1.4.5 or v1.5.1. Users unable to upgrade should ensure that all relevant certificates are manually checked.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
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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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2023/11/06/5
https://github.com/libgit2/libgit2/commit/42e5db98b963ae503229c63e44e06e439df50e56 Patch  Third Party Advisory 
https://github.com/libgit2/libgit2/commit/cd6f679af401eda1f172402006ef8265f8bd58ea Patch  Third Party Advisory 
https://github.com/libgit2/libgit2/releases/tag/v1.4.5 Release Notes  Third Party Advisory 
https://github.com/libgit2/libgit2/releases/tag/v1.5.1 Release Notes  Third Party Advisory 
https://github.com/libgit2/libgit2/security/advisories/GHSA-8643-3wh5-rmjq Third Party Advisory 
https://www.libssh2.org Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-347 Improper Verification of Cryptographic Signature GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-22742
NVD Published Date:
01/20/2023
NVD Last Modified:
11/06/2023
Source:
GitHub, Inc.