CVE-2017-7822
Published: 2 October 2017
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.
Priority
Status
Package | Release | Status |
---|---|---|
firefox
Launchpad, Ubuntu, Debian |
artful |
Released
(56.0+build6-0ubuntu1)
|
bionic |
Released
(56.0+build6-0ubuntu1)
|
|
trusty |
Released
(56.0+build6-0ubuntu0.14.04.1)
|
|
upstream |
Released
(56.0)
|
|
xenial |
Released
(56.0+build6-0ubuntu0.16.04.1)
|
|
zesty |
Released
(56.0+build6-0ubuntu0.17.04.1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
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 |