CVE-2021-38503
CVE-2021-38503
This page contains facts from public vulnerability sources. Check the original advisory before updating.
The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVSS 10.0 · Critical · EPSS 4.1% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
firefox
- Versions
- ≥ unspecified, < 94: Affected (custom)
Update to 94
thunderbird
- Versions
- ≥ unspecified, < 91.3: Affected (custom)
Update to 91.3
firefox esr
- Versions
- ≥ unspecified, < 91.3: Affected (custom)
Update to 91.3
firefox-esr Debian:12
- Affected ranges
- ECOSYSTEM: < 91.3.0esr-1
Update to 91.3.0esr-1
firefox-esr Debian:13
- Affected ranges
- ECOSYSTEM: < 91.3.0esr-1
Update to 91.3.0esr-1
firefox-esr Debian:14
- Affected ranges
- ECOSYSTEM: < 91.3.0esr-1
Update to 91.3.0esr-1
thunderbird Debian:12
- Affected ranges
- ECOSYSTEM: < 1:91.3.0-1
Update to 1:91.3.0-1
thunderbird Debian:13
- Affected ranges
- ECOSYSTEM: < 1:91.3.0-1
Update to 1:91.3.0-1
thunderbird Debian:14
- Affected ranges
- ECOSYSTEM: < 1:91.3.0-1
Update to 1:91.3.0-1
firefox Ubuntu:18.04:LTS
- Versions
- 56.0+build6-0ubuntu1
- 57.0.1+build2-0ubuntu1
- 59.0.1+build1-0ubuntu1
- 59.0.2+build1-0ubuntu1
- 60.0+build2-0ubuntu1
- 60.0.1+build2-0ubuntu0.18.04.1
- 60.0.2+build1-0ubuntu0.18.04.1
- 61.0+build3-0ubuntu0.18.04.1
- 61.0.1+build1-0ubuntu0.18.04.1
- 62.0+build2-0ubuntu0.18.04.3
- 62.0+build2-0ubuntu0.18.04.4
- 62.0+build2-0ubuntu0.18.04.5
- 62.0.3+build1-0ubuntu0.18.04.1
- 63.0+build2-0ubuntu0.18.04.2
- 63.0.3+build1-0ubuntu0.18.04.1
- 64.0+build3-0ubuntu0.18.04.1
- 65.0+build2-0ubuntu0.18.04.1
- 65.0.1+build2-0ubuntu0.18.04.1
- 66.0+build3-0ubuntu0.18.04.1
- 66.0.1+build1-0ubuntu0.18.04.1
- 66.0.2+build1-0ubuntu0.18.04.1
- 66.0.3+build1-0ubuntu0.18.04.1
- 66.0.4+build3-0ubuntu0.18.04.1
- 66.0.5+build1-0ubuntu0.18.04.1
- 67.0+build2-0ubuntu0.18.04.1
- 67.0.1+build1-0ubuntu0.18.04.1
- 67.0.2+build2-0ubuntu0.18.04.1
- 67.0.3+build1-0ubuntu0.18.04.1
- 67.0.4+build1-0ubuntu0.18.04.1
- 68.0+build3-0ubuntu0.18.04.1
- 68.0.1+build1-0ubuntu0.18.04.1
- 68.0.2+build1-0ubuntu0.18.04.1
- 69.0+build2-0ubuntu0.18.04.1
- 69.0.1+build1-0ubuntu0.18.04.1
- 69.0.2+build1-0ubuntu0.18.04.1
- 70.0+build2-0ubuntu0.18.04.1
- 70.0.1+build1-0ubuntu0.18.04.1
- 71.0+build5-0ubuntu0.18.04.1
- 72.0.1+build1-0ubuntu0.18.04.1
- 72.0.2+build1-0ubuntu0.18.04.1
- 73.0+build3-0ubuntu0.18.04.1
- 73.0.1+build1-0ubuntu0.18.04.1
- 74.0+build3-0ubuntu0.18.04.1
- 74.0.1+build1-0ubuntu0.18.04.1
- 75.0+build3-0ubuntu0.18.04.1
- 76.0+build2-0ubuntu0.18.04.1
- 76.0.1+build1-0ubuntu0.18.04.1
- 77.0.1+build1-0ubuntu0.18.04.1
- 78.0.1+build1-0ubuntu0.18.04.1
- 78.0.2+build2-0ubuntu0.18.04.1
- 79.0+build1-0ubuntu0.18.04.1
- 80.0+build2-0ubuntu0.18.04.1
- 80.0.1+build1-0ubuntu0.18.04.1
- 81.0+build2-0ubuntu0.18.04.1
- 81.0.2+build1-0ubuntu0.18.04.1
- 82.0+build2-0ubuntu0.18.04.1
- 82.0.2+build1-0ubuntu0.18.04.1
- 82.0.3+build1-0ubuntu0.18.04.1
- 83.0+build2-0ubuntu0.18.04.2
- 84.0+build3-0ubuntu0.18.04.1
- 84.0.1+build1-0ubuntu0.18.04.1
- 84.0.2+build1-0ubuntu0.18.04.1
- 85.0+build1-0ubuntu0.18.04.1
- 85.0.1+build1-0ubuntu0.18.04.1
- 86.0+build3-0ubuntu0.18.04.1
- 86.0.1+build1-0ubuntu0.18.04.1
- 87.0+build3-0ubuntu0.18.04.2
- 88.0+build2-0ubuntu0.18.04.2
- 88.0.1+build1-0ubuntu0.18.04.2
- 89.0+build2-0ubuntu0.18.04.2
- 89.0.1+build1-0ubuntu0.18.04.1
- 89.0.2+build1-0ubuntu0.18.04.1
- 90.0+build1-0ubuntu0.18.04.1
- 90.0.2+build1-0ubuntu0.18.04.1
- 91.0+build2-0ubuntu0.18.04.1
- 91.0.1+build1-0ubuntu0.18.04.1
- 91.0.2+build1-0ubuntu0.18.04.1
- 92.0+build3-0ubuntu0.18.04.1
- 93.0+build1-0ubuntu0.18.04.1
- Affected ranges
- ECOSYSTEM: < 94.0+build3-0ubuntu0.18.04.1
Update to 94.0+build3-0ubuntu0.18.04.1
thunderbird Ubuntu:18.04:LTS
- Versions
- 1:52.4.0+build1-0ubuntu2
- 1:52.6.0+build1-0ubuntu1
- 1:52.7.0+build1-0ubuntu1
- 1:52.8.0+build1-0ubuntu0.18.04.1
- 1:52.9.1+build3-0ubuntu0.18.04.1
- 1:60.2.1+build1-0ubuntu0.18.04.2
- 1:60.4.0+build2-0ubuntu0.18.04.1
- 1:60.5.1+build2-0ubuntu0.18.04.1
- 1:60.6.1+build2-0ubuntu0.18.04.1
- 1:60.7.0+build1-0ubuntu0.18.04.1
- 1:60.7.1+build1-0ubuntu0.18.04.1
- 1:60.7.2+build2-0ubuntu0.18.04.1
- 1:60.8.0+build1-0ubuntu0.18.04.1
- 1:60.9.0+build1-0ubuntu0.18.04.1
- 1:68.2.1+build1-0ubuntu0.18.04.1
- 1:68.2.2+build1-0ubuntu0.18.04.1
- 1:68.4.1+build1-0ubuntu0.18.04.1
- 1:68.7.0+build1-0ubuntu0.18.04.1
- 1:68.8.0+build2-0ubuntu0.18.04.2
- 1:68.10.0+build1-0ubuntu0.18.04.1
- 1:78.8.1+build1-0ubuntu0.18.04.1
- 1:78.11.0+build1-0ubuntu0.18.04.2
- 1:78.13.0+build1-0ubuntu0.18.04.1
- 1:78.14.0+build1-0ubuntu0.18.04.1
- 1:78.14.0+build1-0ubuntu0.18.04.2
- Affected ranges
- ECOSYSTEM: < 1:91.5.0+build1-0ubuntu0.18.04.1
Update to 1:91.5.0+build1-0ubuntu0.18.04.1
mozjs52 Ubuntu:18.04:LTS
- Versions
- 52.3.1-0ubuntu3
- 52.3.1-7fakesync1
- 52.8.1-0ubuntu0.18.04.1
- 52.9.1-0ubuntu0.18.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs38 Ubuntu:18.04:LTS
- Versions
- 38.8.0~repack1-0ubuntu1
- 38.8.0~repack1-0ubuntu3
- 38.8.0~repack1-0ubuntu4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
firefox Ubuntu:20.04:LTS
- Versions
- 69.0.3+build1-0ubuntu1
- 70.0+build2-0ubuntu1
- 70.0+build2-0ubuntu2
- 70.0.1+build1-0ubuntu2
- 71.0+build2-0ubuntu2
- 71.0+build5-0ubuntu1
- 72.0.1+build1-0ubuntu1
- 72.0.2+build1-0ubuntu1
- 73.0+build1-0ubuntu1
- 73.0+build2-0ubuntu1
- 73.0+build3-0ubuntu1
- 73.0.1+build1-0ubuntu1
- 74.0+build1-0ubuntu1
- 74.0+build2-0ubuntu1
- 74.0+build2-0ubuntu2
- 74.0+build3-0ubuntu1
- 75.0+build3-0ubuntu1
- 76.0+build2-0ubuntu0.20.04.1
- 76.0.1+build1-0ubuntu0.20.04.1
- 77.0.1+build1-0ubuntu0.20.04.1
- 78.0.1+build1-0ubuntu0.20.04.1
- 78.0.2+build2-0ubuntu0.20.04.1
- 79.0+build1-0ubuntu0.20.04.1
- 80.0+build2-0ubuntu0.20.04.1
- 80.0.1+build1-0ubuntu0.20.04.1
- 81.0+build2-0ubuntu0.20.04.1
- 81.0.2+build1-0ubuntu0.20.04.1
- 82.0+build2-0ubuntu0.20.04.1
- 82.0.2+build1-0ubuntu0.20.04.1
- 82.0.3+build1-0ubuntu0.20.04.1
- 83.0+build2-0ubuntu0.20.04.1
- 84.0+build3-0ubuntu0.20.04.1
- 84.0.1+build1-0ubuntu0.20.04.1
- 84.0.2+build1-0ubuntu0.20.04.1
- 85.0+build1-0ubuntu0.20.04.1
- 85.0.1+build1-0ubuntu0.20.04.1
- 86.0+build3-0ubuntu0.20.04.1
- 86.0.1+build1-0ubuntu0.20.04.1
- 87.0+build3-0ubuntu0.20.04.2
- 88.0+build2-0ubuntu0.20.04.1
- 88.0.1+build1-0ubuntu0.20.04.2
- 89.0+build2-0ubuntu0.20.04.2
- 89.0.1+build1-0ubuntu0.20.04.1
- 89.0.2+build1-0ubuntu0.20.04.1
- 90.0+build1-0ubuntu0.20.04.1
- 90.0.2+build1-0ubuntu0.20.04.1
- 91.0+build2-0ubuntu0.20.04.1
- 91.0.1+build1-0ubuntu0.20.04.1
- 91.0.2+build1-0ubuntu0.20.04.1
- 92.0+build3-0ubuntu0.20.04.1
- 93.0+build1-0ubuntu0.20.04.1
- Affected ranges
- ECOSYSTEM: < 94.0+build3-0ubuntu0.20.04.1
Update to 94.0+build3-0ubuntu0.20.04.1
thunderbird Ubuntu:20.04:LTS
- Versions
- 1:68.1.2+build1-0ubuntu1
- 1:68.1.2+build1-0ubuntu2
- 1:68.2.1+build1-0ubuntu1
- 1:68.2.2+build1-0ubuntu1
- 1:68.3.0+build2-0ubuntu1
- 1:68.3.1+build1-0ubuntu2
- 1:68.4.1+build1-0ubuntu1
- 1:68.4.2+build2-0ubuntu1
- 1:68.5.0+build1-0ubuntu1
- 1:68.6.0+build2-0ubuntu1
- 1:68.7.0+build1-0ubuntu1
- 1:68.7.0+build1-0ubuntu2
- 1:68.8.0+build2-0ubuntu0.20.04.2
- 1:68.10.0+build1-0ubuntu0.20.04.1
- 1:78.7.1+build1-0ubuntu0.20.04.1
- 1:78.8.1+build1-0ubuntu0.20.04.1
- 1:78.11.0+build1-0ubuntu0.20.04.2
- 1:78.13.0+build1-0ubuntu0.20.04.2
- 1:78.14.0+build1-0ubuntu0.20.04.1
- 1:78.14.0+build1-0ubuntu0.20.04.2
- Affected ranges
- ECOSYSTEM: < 1:91.5.0+build1-0ubuntu0.20.04.1
Update to 1:91.5.0+build1-0ubuntu0.20.04.1
mozjs68 Ubuntu:20.04:LTS
- Versions
- 68.5.0-1~fakesync
- 68.5.0-2~fakesync
- 68.6.0-1
- 68.6.0-1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mozjs52 Ubuntu:20.04:LTS
- Versions
- 52.9.1-1build1
- 52.9.1-1ubuntu3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
firefox Ubuntu:22.04:LTS
- Versions
- 93.0+build1-0ubuntu3
- Affected ranges
- ECOSYSTEM: < 94.0+build3-0ubuntu1
Update to 94.0+build3-0ubuntu1
mozjs78 Ubuntu:22.04:LTS
- Versions
- 78.13.0-1
- 78.15.0-2
- 78.15.0-4ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
thunderbird Ubuntu:22.04:LTS
- Versions
- 1:91.1.2+build1-0ubuntu1
- 1:91.3.0+build2-0ubuntu1
- Affected ranges
- ECOSYSTEM: < 1:91.3.1+build1-0ubuntu1
Update to 1:91.3.1+build1-0ubuntu1
Original sources
- https://www.mozilla.org/security/advisories/mfsa2021-49/
- https://www.mozilla.org/security/advisories/mfsa2021-50/
- https://www.mozilla.org/security/advisories/mfsa2021-48/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1729517
- https://www.debian.org/security/2021/dsa-5026
- https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
- https://www.debian.org/security/2022/dsa-5034
- https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
- https://security.gentoo.org/glsa/202202-03
- https://security.gentoo.org/glsa/202208-14
- https://nvd.nist.gov/vuln/detail/CVE-2021-38503