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CVE-2018-5108

N/A
Published: June 11, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 01:59 AM UTC
2 products affected across 2 vendorsUbuntu LinuxFirefox

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Severity
N/A
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
14.0416.0417.10
Firefox· Mozilla
95%
v ≤ 57.0.4v < 58
Affected range stops below 58, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/102786
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1040270
x_refsource_CONFIRMIssue TrackingPermissions Required
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1421099
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3544-1/
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2018-02/

CVSS

4.3MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200

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