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MFSA2017-21 Firefox: Security vulnerabilities fixed in Firefox 56 (CVE-2017-7822)

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MFSA2017-21 Firefox: Security vulnerabilities fixed in Firefox 56 (CVE-2017-7822)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
06/11/2018
Created
07/25/2018
Added
07/12/2018
Modified
07/12/2018

Description

The AES-GCM implementation in WebCrypto API accepts 0-length IV when it should require a length of 1 according to the NIST Special Publication 800-38D specification. This might allow for the authentication key to be determined in some instances. This vulnerability affects Firefox < 56.

Solution(s)

  • mozilla-firefox-upgrade-56_0

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