CVE-2023-31147

Katalog CVE

CVSS 6.5 · Medium EPSS 0,90%

Kerentanan Use of Insufficiently Random Values pada c-ares project c-ares, fedoraproject fedora. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

c-ares is an asynchronous resolver library. When /dev/urandom or RtlGenRandom() are unavailable, c-ares uses rand() to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand() so will generate predictable output. Input from the random number generator is fed into a non-compilant RC4 implementation and may not be as strong as the original RC4 implementation. No attempt is made to look for modern OS-provided CSPRNGs like arc4random() that is widely available. This issue has been fixed in version 1.19.1.

Rincian

Terbit di NVD

25 Mei 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-330: Use of Insufficiently Random Values

EPSS (30 hari)

0,90% peluang dieksploitasi; lebih tinggi dari 58,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/c-ares/c-ares/security/advisories/GHSA-8r8p-23f3-64c2 advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBB... mailing list · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV2... mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202310-09 advisory pihak ketiga
• https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 release notes