Description
If a Content Security Policy (CSP) directive is defined that uses a hash-based source that takes the empty string as input, execution of any javascript: URIs will be allowed. This could allow for malicious JavaScript content to be run, bypassing CSP permissions. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Mozilla Firefox
unspecified to < 69affected
Mozilla Firefox ESR
unspecified to < 68.1affected
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1452037 ↗
- https://www.mozilla.org/security/advisories/mfsa2019-25/ ↗
- https://www.mozilla.org/security/advisories/mfsa2019-26/ ↗
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html ↗