CVE-2023-22742Medium· 6.8▾ Sunlitgit2-rs fails to verify SSH keys by default
▾ Sunlit zone — Low / medium · no exploitation signal
impact 37.4 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 13.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
0.6%
Last analysed / modified upstream
— → 6.8
none → medium
0.6% → 0.6%
The git2 and libgit2-sys crates are Rust wrappers around the libgit2 C library. It was discovered that libgit2 1.5.0 and below did not verify SSH host keys when establishing an SSH connection, exposing users of the library to Man-In-the-Middle attacks.
The libgit2 team assigned CVE-2023-22742 to this vulnerability. The following versions of the libgit2-sys Rust crate have been released:
A new git2 crate version has also been released, 0.16.1. This version only bumps its libgit2-sys dependency to ensure no vulnerable libgit2-sys versions are used, but contains no code changes: if you update the libgit2-sys version there is no need to also update the git2 crate version.
You can learn more about this vulnerability in libgit2's advisory
libgit2-sys >= 0.14.0, < 0.14.2libgit2-sys < 0.13.5git2 < 0.16.1Upgrade to a patched release:
libgit2-sys 0.14.2libgit2-sys 0.13.5git2 0.16.1Field changes observed since this record was first indexed.