Bug 1693621 (CVE-2018-12398) - CVE-2018-12398 firefox: Content Security Policy bypass through stylesheet injection in resource URIs
Summary: CVE-2018-12398 firefox: Content Security Policy bypass through stylesheet inj...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2018-12398
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1692382
TreeView+ depends on / blocked
 
Reported: 2019-03-28 10:57 UTC by msiddiqu
Modified: 2021-02-26 05:26 UTC (History)
11 users (show)

Fixed In Version: firefox 63
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Clone Of:
Environment:
Last Closed: 2019-04-01 02:16:26 UTC
Embargoed:

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Description msiddiqu 2019-03-28 10:57:58 UTC 
By using the reflected URL in some special resource URIs, such as chrome:, it is possible to inject stylesheets and bypass Content Security Policy (CSP). This vulnerability affects Firefox < 63.

References:

https://bugzilla.mozilla.org/show_bug.cgi?id=1460538
https://bugzilla.mozilla.org/show_bug.cgi?id=1488061

External References:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12398
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