CVE-2023-22742

Katalog CVE

CVSS 5.9 · Medium EPSS 0,58%

Kerentanan Improper Verification of Cryptographic Signature pada libgit2. Skor CVSS 3.1 5.9 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

20 Januari 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.9 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,58% peluang dieksploitasi; lebih tinggi dari 46,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/libgit2/libgit2/commit/42e5db98b963ae503229c63e44e06e439df50e56 patch · advisory pihak ketiga
• https://github.com/libgit2/libgit2/commit/cd6f679af401eda1f172402006ef8265f8bd58ea patch · advisory pihak ketiga
• https://github.com/libgit2/libgit2/releases/tag/v1.4.5 release notes · advisory pihak ketiga
• https://github.com/libgit2/libgit2/releases/tag/v1.5.1 release notes · advisory pihak ketiga
• https://github.com/libgit2/libgit2/security/advisories/GHSA-8643-3wh5-rmjq advisory pihak ketiga
• https://www.libssh2.org advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2023/11/06/5