CVE-2020-1968

3.7 LOW
Published: September 09, 2020 Modified: April 16, 2026
View on NVD

Description

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).

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html
Source: openssl-security@openssl.org
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202210-02
Source: openssl-security@openssl.org
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200911-0004/
Source: openssl-security@openssl.org
Third Party Advisory
https://usn.ubuntu.com/4504-1/
Source: openssl-security@openssl.org
Third Party Advisory
https://www.openssl.org/news/secadv/20200909.txt
Source: openssl-security@openssl.org
Vendor Advisory
https://www.oracle.com//security-alerts/cpujul2021.html
Source: openssl-security@openssl.org
Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html
Source: openssl-security@openssl.org
Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html
Source: openssl-security@openssl.org
Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html
Source: openssl-security@openssl.org
Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html
Source: openssl-security@openssl.org
Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202210-02
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200911-0004/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://usn.ubuntu.com/4504-1/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.openssl.org/news/secadv/20200909.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.oracle.com//security-alerts/cpujul2021.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory

20 reference(s) from NVD

Quick Stats

CVSS v3 Score
3.7 / 10.0
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

oracle canonical openssl fujitsu debian