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CVE-2018-5108

Date: June 11, 2018

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.

Severity Score

Related Resources (8)

https://people.canonical.com/~ubuntu-security/cve/CVE-2018-5108
https://www.mozilla.org/security/advisories/mfsa2018-02/
https://bugzilla.mozilla.org/show_bug.cgi?id=1421099
https://usn.ubuntu.com/3544-1/
http://www.securityfocus.com/bid/102786
https://nvd.nist.gov/vuln/detail/CVE-2018-5108
http://www.securitytracker.com/id/1040270
https://www.mend.io/vulnerability-database/CVE-2018-5108

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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