CVE-2017-7843
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.8 Medium
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
77.7%
When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.
Affected configurations
References
www.securityfocus.com/bid/102039
www.securityfocus.com/bid/102112
www.securitytracker.com/id/1039954
access.redhat.com/errata/RHSA-2017:3382
bugzilla.mozilla.org/show_bug.cgi?id=1410106
lists.debian.org/debian-lts-announce/2017/12/msg00003.html
www.debian.org/security/2017/dsa-4062
www.mozilla.org/security/advisories/mfsa2017-27/
www.mozilla.org/security/advisories/mfsa2017-28/
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.8 Medium
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
77.7%