CVE-2018-5108 Information

Description

A Blob URL can violate origin attribute segregation allowing it to be accessed from a private browsing tab and for data to be passed between the private browsing tab and a normal tab. This could allow for the leaking of private information specific to the private browsing context. This issue is mitigated by the requirement that the user enter the Blob URL manually in order for the access violation to occur. This vulnerability affects Firefox 58.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/102786 http://www.securitytracker.com/id/1040270 https://bugzilla.mozilla.org/show_bug.cgi?id=1421099 https://usn.ubuntu.com/3544-1/ https://www.mozilla.org/security/advisories/mfsa2018-02/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

4.3