CVE-2016-2830
Summary
| CVE | CVE-2016-2830 |
|---|---|
| State | PUBLISHED |
| Assigner | mozilla |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-08-05 01:59:00 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.0 4.3 MEDIUM from [email protected]
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Problem Types: CWE-200 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 4.3 | MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| 2.0 | [email protected] | Primary | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
LowIntegrity
NoneAvailability
NoneCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
PartialIntegrity
NoneAvailability
NoneAV:N/AC:M/Au:N/C:P/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 1255270 - (CVE-2016-2830) Favicon request doesn't timeout, or close when related window is closed | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.mozilla.org | Issue Tracking, Permissions Required |
| Mozilla Firefox Multiple Security Vulnerabilities | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| Mozilla Firefox Multiple Flaws Let Remote Users Execute Arbitrary Code, Bypass Security Restrictions, Spoof Content, Modify Files, and Obtain Potentially Sensitive Information - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | |
| [security-announce] openSUSE-SU-2016:1964-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| Favicon network connection can persist when page is closed — Mozilla | af854a3a-2127-422b-91ae-364da2661108 | www.mozilla.org | Vendor Advisory |
| [security-announce] openSUSE-SU-2016:2026-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| USN-3044-1: Firefox vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Oracle Linux Bulletin - July 2016 | af854a3a-2127-422b-91ae-364da2661108 | www.oracle.com | |
| Debian -- Security Information -- DSA-3640-1 firefox-esr | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | |
| Mozilla Firefox, Thunderbird: Multiple vulnerabilities (GLSA 201701-15) — Gentoo security | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 710500 Gentoo Linux Mozilla Firefox, Thunderbird Multiple Vulnerabilities (GLSA 201701-15)