CVE-2017-7822

firefox: The AES-GCM implementation in WebCrypto API accepts 0-length IV when it should require a length of 1 according to the...

CVE-2017-7822 is fixed in 4 products on 1 platform, first by firefox 56.0+build6-0ubuntu1, released October 1, 2017. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0133
71st percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
firefox · Ubuntu 18.04.6 LTS (bionic) 56.0+build6-0ubuntu1 firefox 56.0+build6-0ubuntu1 Oct 1, 2017
firefox-globalmenu · Ubuntu 18.04.6 LTS (bionic) 56.0+build6-0ubuntu1 firefox-globalmenu 56.0+build6-0ubuntu1 Oct 1, 2017
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 56.0+build6-0ubuntu1 firefox-mozsymbols 56.0+build6-0ubuntu1 Oct 1, 2017
firefox-testsuite · Ubuntu 18.04.6 LTS (bionic) 56.0+build6-0ubuntu1 firefox-testsuite 56.0+build6-0ubuntu1 Oct 1, 2017