| Name | CVE-2017-7763 |
| Description | Default fonts on OS X display some Tibetan characters as whitespace. When used in the addressbar as part of an IDN this can be used for domain name spoofing attacks. Note: This attack only affects OS X operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| firefox (PTS) | sid | 133.0.3-1 | fixed |
| firefox-esr (PTS) | bullseye | 115.14.0esr-1~deb11u1 | fixed |
| bullseye (security) | 128.5.0esr-1~deb11u1 | fixed |
| bookworm | 128.3.1esr-1~deb12u1 | fixed |
| bookworm (security) | 128.5.0esr-1~deb12u1 | fixed |
| trixie | 128.5.0esr-1 | fixed |
| sid | 128.5.1esr-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) | (not affected) | | | |
| firefox-esr | source | (unstable) | (not affected) | | | |
| icedove | source | (unstable) | (not affected) | | | |
Notes
- firefox <not-affected> (Only firefox on Mac OS X)
- firefox-esr <not-affected> (Only Firefox ESR on Mac OS X)
- icedove <not-affected> (Only Thunderbird on Mac OS X)
https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/#CVE-2017-7763
https://www.mozilla.org/en-US/security/advisories/mfsa2017-16/#CVE-2017-7763
https://www.mozilla.org/en-US/security/advisories/mfsa2017-17/#CVE-2017-7763