CVE-2021-29976
CVE-2021-29976
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
CVSS 8.8 · High · EPSS 1.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
thunderbird
- Versions
- ≥ unspecified, < 78.12: Affected (custom)
Update to 78.12
firefox esr
- Versions
- ≥ unspecified, < 78.12: Affected (custom)
Update to 78.12
firefox
- Versions
- ≥ unspecified, < 90: Affected (custom)
Update to 90
firefox-esr Debian:12
- Affected ranges
- ECOSYSTEM: < 78.12.0esr-1
Update to 78.12.0esr-1
firefox-esr Debian:13
- Affected ranges
- ECOSYSTEM: < 78.12.0esr-1
Update to 78.12.0esr-1
firefox-esr Debian:14
- Affected ranges
- ECOSYSTEM: < 78.12.0esr-1
Update to 78.12.0esr-1
thunderbird Debian:12
- Affected ranges
- ECOSYSTEM: < 1:78.12.0-1
Update to 1:78.12.0-1
thunderbird Debian:13
- Affected ranges
- ECOSYSTEM: < 1:78.12.0-1
Update to 1:78.12.0-1
thunderbird Debian:14
- Affected ranges
- ECOSYSTEM: < 1:78.12.0-1
Update to 1:78.12.0-1
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
- Affected ranges
- ECOSYSTEM: < 90.0+build1-0ubuntu0.18.04.1
Update to 90.0+build1-0ubuntu0.18.04.1
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
- Affected ranges
- ECOSYSTEM: < 1:78.13.0+build1-0ubuntu0.18.04.1
Update to 1:78.13.0+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
- Affected ranges
- ECOSYSTEM: < 90.0+build1-0ubuntu0.20.04.1
Update to 90.0+build1-0ubuntu0.20.04.1
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
- Affected ranges
- ECOSYSTEM: < 1:78.13.0+build1-0ubuntu0.20.04.2
Update to 1:78.13.0+build1-0ubuntu0.20.04.2
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
mozjs78 Ubuntu:22.04:LTS
- Versions
- 78.13.0-1
- 78.15.0-2
- 78.15.0-4ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://www.mozilla.org/security/advisories/mfsa2021-28/
- https://www.mozilla.org/security/advisories/mfsa2021-30/
- https://www.mozilla.org/security/advisories/mfsa2021-29/
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1700895%2C1703334%2C1706910%2C1711576%2C1714391
- https://security.gentoo.org/glsa/202202-03
- https://security.gentoo.org/glsa/202208-14
- https://nvd.nist.gov/vuln/detail/CVE-2021-29976