Public Date:
1342897: CVE-2016-2830 Mozilla: Favicon network connection persists when page is closed (MFSA 2016-62)

The MITRE CVE dictionary describes this issue as:

Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.

Find out more about CVE-2016-2830 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 4.3
Base Metrics AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

CVSS v3 metrics

CVSS3 Base Score 4.3
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Impact None
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (firefox) RHSA-2016:1551 2016-08-03
Red Hat Enterprise Linux 7 (firefox) RHSA-2016:1551 2016-08-03
Red Hat Enterprise Linux 5 (firefox) RHSA-2016:1551 2016-08-03


Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Toni Huttunen as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation