CVE-2023-22742

Improper Verification of Cryptographic Signature in conan/libgit2

Identifiers

CVE-2023-22742, GHSA-8643-3wh5-rmjq

Package Slug

conan/libgit2

Vulnerability

Improper Verification of Cryptographic Signature

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.

Affected Versions

All versions before 1.4.5, version 1.5.0

Solution

Unfortunately, there is no solution available yet.

Last Modified

2023-02-01

source