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CVE-2020-12413

Published: 16 February 2023

The Raccoon attack is a timing attack on DHE ciphersuites inherit in the TLS specification. To mitigate this vulnerability, Firefox disabled support for DHE ciphersuites.

Notes

AuthorNote
mdeslaur
nss doesn't reuse DHE keys, but does reuse ECDHE keys, which is
not problematic for the moment. See page 13 of
https://raccoon-attack.com/RacoonAttack.pdf
and the nss release notes for 3.17:
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.17_release_notes
Since 3.17 includes a way to disable ECDHE key reuse with the
SSL_REUSE_SERVER_ECDHE_KEY option, marking this CVE as fixed in
fixed in 3.17.

Priority

Low

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
nss
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
bionic Not vulnerable
(2:3.35-2ubuntu2.14)
focal Not vulnerable
(2:3.49.1-1ubuntu1.7)
hirsute Ignored
(end of life)
impish Not vulnerable
(2:3.68-1ubuntu1.1)
jammy Not vulnerable
(2:3.68.2-0ubuntu1)
trusty Not vulnerable

upstream
Released (3.17)
xenial Not vulnerable

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N