CVE-2020-24659

Katalog CVE

CVSS 7.5 · High EPSS 3,7%

Kerentanan NULL Pointer Dereference pada gnutls, fedoraproject fedora +2 lainnya. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.

Rincian

Terbit di NVD

4 September 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference
CWE-787: Out-of-bounds Write

EPSS (30 hari)

3,7% peluang dieksploitasi; lebih tinggi dari 89,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04 advisory vendor
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html mailing list · advisory pihak ketiga
• https://gitlab.com/gnutls/gnutls/-/issues/1071 exploit · issue tracking · advisory pihak ketiga
• https://security.gentoo.org/glsa/202009-01 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20200911-0006/ advisory pihak ketiga
• https://usn.ubuntu.com/4491-1/ advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2...