CVE-2017-7822

Publication date 2 October 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	18.04 LTS bionic	Fixed 56.0+build6-0ubuntu1
	17.10 artful	Fixed 56.0+build6-0ubuntu1
	17.04 zesty	Fixed 56.0+build6-0ubuntu0.17.04.1
	16.04 LTS xenial	Fixed 56.0+build6-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 56.0+build6-0ubuntu0.14.04.1

Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Related Ubuntu Security Notices (USN)