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.
References
Link | 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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2023-01-20T22:49:06.378Z
Updated: 2023-11-07T00:06:34
Reserved: 2023-01-06T14:21:05.892Z
Link: CVE-2023-22742
JSON object: View
NVD Information
Status : Modified
Published: 2023-01-20T23:15:10.307
Modified: 2023-11-07T04:07:19.320
Link: CVE-2023-22742
JSON object: View
Redhat Information
No data.
CWE