CVE-2018-5136: Input Validation
First published: Tue Mar 13 2018(Updated: )
A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <59 | 59 |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =17.10 | |
| Mozilla Firefox | <59.0 | |
| debian/firefox | 131.0.2-2 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1419166
- https://www.mozilla.org/security/advisories/mfsa2018-06/
- https://usn.ubuntu.com/3596-1/
- http://www.securityfocus.com/bid/103386
- http://www.securitytracker.com/id/1040514
- https://launchpad.net/bugs/cve/CVE-2018-5136
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-06/
- https://security-tracker.debian.org/tracker/CVE-2018-5136
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5136
- https://nvd.nist.gov/vuln/detail/CVE-2018-5136
- https://ubuntu.com/security/CVE-2018-5136
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2018-5136.
What is the severity of CVE-2018-5136?
The severity of CVE-2018-5136 is high, with a severity value of 7.5.
Which software is affected by CVE-2018-5136?
Firefox versions prior to 59 are affected by CVE-2018-5136.
How can the same-origin policy be bypassed in CVE-2018-5136?
A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy.
How can I fix CVE-2018-5136?
To fix CVE-2018-5136, update Firefox to version 59 or later.
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- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/17.10
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