CVE-2016-2830

Description

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.52%
Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory mozilla.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.debian.org/security/2016/dsa-3640 vendor advisory
http://www.securitytracker.com/id/1036508 vdb entry
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.ubuntu.com/usn/USN-3044-1 vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1551.html vendor advisory
https://security.gentoo.org/glsa/201701-15 vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1255270 issue tracking permissions required
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html vendor advisory
http://www.securityfocus.com/bid/92261 vdb entry
http://www.mozilla.org/security/announce/2016/mfsa2016-63.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-2830?
CVE-2016-2830 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2830?
To fix CVE-2016-2830, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2830 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2830 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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