VDB
CVE-2018-12395
CVE-2018-12395
PUBLISHED
CVSS 7.5 HIGH
By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.
EPSS 2.85% · 86.1th percentile
Risk Scores
CVSS 3.0
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
2.85%
86.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | mozjs38 | 38.8.0~repack1-0ubuntu3, 0, * |
| Ubuntu:16.04:LTS | firefox | *, 61.0+build3-0ubuntu0.16.04.2, 61.0.1+build1-0ubuntu0.16.04.1 |
| Ubuntu:20.04:LTS | mozjs52 | 52.9.1-1build1, 52.9.1-1ubuntu3, 0 |
| Ubuntu:18.04:LTS | mozjs52 | 52.8.1-0ubuntu0.18.04.1, 52.3.1-0ubuntu3, 52.3.1-7fakesync1 |
| Ubuntu:14.04:LTS | firefox | 57.0.4+build1-0ubuntu0.14.04.1, 58.0+build6-0ubuntu0.14.04.1, 59.0+build5-0ubuntu0.14.04.1 |
| Ubuntu:18.04:LTS | firefox | 56.0+build6-0ubuntu1, 57.0.1+build2-0ubuntu1, 59.0.1+build1-0ubuntu1 |
Timeline
- Oct 24, 2018 CVE Published
- Apr 14, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 2, 2022 EPSS Score
- Jul 6, 2022 EPSS Score
- Sep 7, 2022 EPSS Score
- Jan 11, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- May 17, 2023 EPSS Score
- Jul 19, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2018-12395 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/#CVE-2018-12395 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12395 third-party-advisory
- https://ubuntu.com/security/notices/USN-3801-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2018-12395 third-party-advisory