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Bug 741570 (CVE-2020-1968) - <dev-libs/openssl-1.1.1: Weakness in TLS protocol (Raccoon attack) (CVE-2020-1968)
Summary: <dev-libs/openssl-1.1.1: Weakness in TLS protocol (Raccoon attack) (CVE-2020-...
Alias: CVE-2020-1968
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Security
Whiteboard: A3 [glsa? cleanup]
Keywords: PullRequest
Depends on: 741616
  Show dependency tree
Reported: 2020-09-11 02:52 UTC by Sam James
Modified: 2021-11-12 01:52 UTC (History)
1 user (show)

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Package list:
Runtime testing required: ---


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Description Sam James archtester Gentoo Infrastructure gentoo-dev Security 2020-09-11 02:52:52 UTC
"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)."
Comment 1 Thomas Deutschmann gentoo-dev 2020-09-11 08:10:03 UTC
It only affects <1.1 but as long as we have this version is repository we are affected.

Updated summary to reflect current status in Gentoo.