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CVE-2017-7843 When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and…
Description
When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox ESR 52.5 | earliest → < 52.5.2 | 52.5.2 |
| Firefox 57.0 | earliest → < 57.0.1 | 57.0.1 |
References
- RHSA-2017:3382 access.redhat.com
- [debian-lts-announce] 20171210 [SECURITY] [DLA 1202-1] firefox-esr security update lists.debian.org
- www.mozilla.org www.mozilla.org
- 1039954 www.securitytracker.com
- www.mozilla.org www.mozilla.org
- DSA-4062 www.debian.org
- bugzilla.mozilla.org bugzilla.mozilla.org
- 102039 www.securityfocus.com
- 102112 www.securityfocus.com
Timeline
- Published
- Last modified
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