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Reusing a Nonce The advisory has been revoked - it doesn't affect any version of package compat-openssl10-debugsource  (opens in a new tab)

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  • Snyk IDSNYK-RHEL8-COMPATOPENSSL10DEBUGSOURCE-3177392
  • published26 Jul 2021
  • disclosed9 Sept 2020
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Introduced: 9 Sep 2020

CVE-2020-1968  (opens in a new tab)
CWE-323  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream compat-openssl10-debugsource package and not the compat-openssl10-debugsource package as distributed by RHEL.

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).