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.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "firefox", "binary_version": "56.0+build6-0ubuntu0.14.04.1" }, { "binary_name": "firefox-dev", "binary_version": "56.0+build6-0ubuntu0.14.04.1" }, { "binary_name": "firefox-globalmenu", "binary_version": "56.0+build6-0ubuntu0.14.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "56.0+build6-0ubuntu0.14.04.1" }, { "binary_name": "firefox-testsuite", "binary_version": "56.0+build6-0ubuntu0.14.04.1" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "firefox", "binary_version": "56.0+build6-0ubuntu0.16.04.1" }, { "binary_name": "firefox-dev", "binary_version": "56.0+build6-0ubuntu0.16.04.1" }, { "binary_name": "firefox-globalmenu", "binary_version": "56.0+build6-0ubuntu0.16.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "56.0+build6-0ubuntu0.16.04.1" }, { "binary_name": "firefox-testsuite", "binary_version": "56.0+build6-0ubuntu0.16.04.1" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "firefox", "binary_version": "56.0+build6-0ubuntu1" }, { "binary_name": "firefox-dev", "binary_version": "56.0+build6-0ubuntu1" }, { "binary_name": "firefox-globalmenu", "binary_version": "56.0+build6-0ubuntu1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "56.0+build6-0ubuntu1" }, { "binary_name": "firefox-testsuite", "binary_version": "56.0+build6-0ubuntu1" } ] }