CVE-2020-1968: fallo de gravedad baja en OpenSSL
Raccoon attack
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
8Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 3.7epss 4.9%
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).
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Productos afectados
OpenSSL · OpenSSLCVEs relacionadas — OpenSSL
En el mismo producto, de las más peligrosas a las menos.
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Referencias
https://lists.debian.org/debian-lts-announce/2020/09/msg00016.htmlhttps://security.gentoo.org/glsa/202210-02https://security.netapp.com/advisory/ntap-20200911-0004/https://usn.ubuntu.com/4504-1/https://www.openssl.org/news/secadv/20200909.txthttps://www.oracle.com/security-alerts/cpuApr2021.htmlhttps://www.oracle.com/security-alerts/cpuapr2022.htmlhttps://www.oracle.com/security-alerts/cpujan2021.htmlhttps://www.oracle.com//security-alerts/cpujul2021.htmlhttps://www.oracle.com/security-alerts/cpuoct2021.html