| Name | CVE-2018-12395 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1571-1, DSA-4324-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| firefox (PTS) | sid | 124.0.1-1 | fixed |
| firefox-esr (PTS) | buster | 91.12.0esr-1~deb10u1 | fixed |
| buster (security) | 115.9.1esr-1~deb10u1 | fixed | |
| bullseye | 115.7.0esr-1~deb11u1 | fixed | |
| bullseye (security) | 115.9.1esr-1~deb11u1 | fixed | |
| bookworm | 115.7.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 115.9.1esr-1~deb12u1 | fixed | |
| trixie | 115.8.0esr-1 | fixed | |
| sid | 115.9.1esr-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| firefox | source | (unstable) | 63.0-1 | |||
| firefox-esr | source | jessie | 60.3.0esr-1~deb8u1 | DLA-1571-1 | ||
| firefox-esr | source | stretch | 60.3.0esr-1~deb9u1 | DSA-4324-1 | ||
| firefox-esr | source | (unstable) | 60.3.0esr-1 |
https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/#CVE-2018-12395
https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/#CVE-2018-12395