CVE-2017-7822

MEDIUM
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

http://www.securityfocus.com/bid/101057

http://www.securitytracker.com/id/1039465

https://bugzilla.mozilla.org/show_bug.cgi?id=1368859

https://www.mozilla.org/security/advisories/mfsa2017-21/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2019-10-03

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 3.9

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to 55.0.3 (inclusive)

Tenable Plugins

View all (6 total)

IDNameProductFamilySeverity
700321Mozilla Firefox < 56 Multiple VulnerabilitiesNessus Network MonitorWeb Clients
high
103680Mozilla Firefox < 56 Multiple VulnerabilitiesNessusWindows
critical
103678Mozilla Firefox < 56 Multiple Vulnerabilities (macOS)NessusMacOS X Local Security Checks
critical
103667Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : firefox regression (USN-3435-2)NessusUbuntu Local Security Checks
critical
103646Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : firefox vulnerabilities (USN-3435-1)NessusUbuntu Local Security Checks
critical
103556FreeBSD : mozilla -- multiple vulnerabilities (1098a15b-b0f6-42b7-b5c7-8a8646e8be07)NessusFreeBSD Local Security Checks
critical