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Ubuntu: (Multiple Advisories) (CVE-2018-12384): NSS vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2018-12384): NSS vulnerabilities

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
09/26/2018
Created
03/19/2019
Added
01/16/2019
Modified
09/12/2020

Description

When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all versions prior to NSS 3.39. This does not impact TLS 1.3.

Solution(s)

  • ubuntu-upgrade-libnss3

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