CVE-2020-1968

Katalog CVE

CVSS 3.7 · Low EPSS 4,9%

Kerentanan Observable Discrepancy pada openssl, canonical ubuntu linux +13 lainnya. Skor CVSS 3.1 3.7 (Low) menurut NVD.

Deskripsi (NVD)

The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v).

Rincian

Terbit di NVD

9 September 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-203: Observable Discrepancy

EPSS (30 hari)

4,9% peluang dieksploitasi; lebih tinggi dari 91,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.openssl.org/news/secadv/20200909.txt advisory vendor
• https://www.oracle.com//security-alerts/cpujul2021.html patch · advisory pihak ketiga
• https://www.oracle.com/security-alerts/cpuApr2021.html patch · advisory pihak ketiga
• https://www.oracle.com/security-alerts/cpuapr2022.html patch · advisory pihak ketiga
• https://www.oracle.com/security-alerts/cpuoct2021.html patch · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202210-02 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20200911-0004/ advisory pihak ketiga
• https://usn.ubuntu.com/4504-1/ advisory pihak ketiga
• https://www.oracle.com/security-alerts/cpujan2021.html advisory pihak ketiga