CVE-2020-12395
CVE-2020-12395
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. 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 Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.
CVSS 9.8 · Critical · EPSS 2.6% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
firefox esr
- Versions
- ≥ unspecified, < 68.8: Affected (custom)
Update to 68.8
firefox
- Versions
- ≥ unspecified, < 76: Affected (custom)
Update to 76
thunderbird
- Versions
- ≥ unspecified, < 68.8.0: Affected (custom)
Update to 68.8.0
firefox-esr Debian:12
- Affected ranges
- ECOSYSTEM: < 68.8.0esr-1
Update to 68.8.0esr-1
firefox-esr Debian:13
- Affected ranges
- ECOSYSTEM: < 68.8.0esr-1
Update to 68.8.0esr-1
firefox-esr Debian:14
- Affected ranges
- ECOSYSTEM: < 68.8.0esr-1
Update to 68.8.0esr-1
thunderbird Debian:12
- Affected ranges
- ECOSYSTEM: < 1:68.8.0-1
Update to 1:68.8.0-1
thunderbird Debian:13
- Affected ranges
- ECOSYSTEM: < 1:68.8.0-1
Update to 1:68.8.0-1
thunderbird Debian:14
- Affected ranges
- ECOSYSTEM: < 1:68.8.0-1
Update to 1:68.8.0-1
firefox Ubuntu:16.04:LTS
- Versions
- 41.0.2+build2-0ubuntu1
- 42.0+build2-0ubuntu1
- 44.0+build3-0ubuntu2
- 44.0.1+build1-0ubuntu1
- 44.0.2+build1-0ubuntu1
- 45.0+build2-0ubuntu1
- 45.0.1+build1-0ubuntu1
- 45.0.2+build1-0ubuntu1
- 46.0+build5-0ubuntu0.16.04.2
- 46.0.1+build1-0ubuntu0.16.04.2
- 47.0+build3-0ubuntu0.16.04.1
- 48.0+build2-0ubuntu0.16.04.1
- 49.0+build4-0ubuntu0.16.04.1
- 49.0.2+build2-0ubuntu0.16.04.2
- 50.0+build2-0ubuntu0.16.04.2
- 50.0.2+build1-0ubuntu0.16.04.1
- 50.1.0+build2-0ubuntu0.16.04.1
- 51.0.1+build2-0ubuntu0.16.04.1
- 51.0.1+build2-0ubuntu0.16.04.2
- 52.0+build2-0ubuntu0.16.04.1
- 52.0.1+build2-0ubuntu0.16.04.1
- 52.0.2+build1-0ubuntu0.16.04.1
- 53.0+build6-0ubuntu0.16.04.1
- 53.0.2+build1-0ubuntu0.16.04.2
- 53.0.3+build1-0ubuntu0.16.04.2
- 54.0+build3-0ubuntu0.16.04.1
- 55.0.1+build2-0ubuntu0.16.04.2
- 55.0.2+build1-0ubuntu0.16.04.1
- 56.0+build6-0ubuntu0.16.04.1
- 56.0+build6-0ubuntu0.16.04.2
- 57.0+build4-0ubuntu0.16.04.5
- 57.0+build4-0ubuntu0.16.04.6
- 57.0.1+build2-0ubuntu0.16.04.1
- 57.0.3+build1-0ubuntu0.16.04.1
- 57.0.4+build1-0ubuntu0.16.04.1
- 58.0+build6-0ubuntu0.16.04.1
- 58.0.1+build1-0ubuntu0.16.04.1
- 58.0.2+build1-0ubuntu0.16.04.1
- 59.0+build5-0ubuntu0.16.04.1
- 59.0.1+build1-0ubuntu0.16.04.1
- 59.0.2+build1-0ubuntu0.16.04.1
- 59.0.2+build1-0ubuntu0.16.04.3
- 60.0+build2-0ubuntu0.16.04.1
- 60.0.1+build2-0ubuntu0.16.04.1
- 60.0.2+build1-0ubuntu0.16.04.1
- 61.0+build3-0ubuntu0.16.04.2
- 61.0.1+build1-0ubuntu0.16.04.1
- 62.0+build2-0ubuntu0.16.04.3
- 62.0+build2-0ubuntu0.16.04.4
- 62.0+build2-0ubuntu0.16.04.5
- 62.0.3+build1-0ubuntu0.16.04.2
- 63.0+build2-0ubuntu0.16.04.2
- 63.0.3+build1-0ubuntu0.16.04.1
- 64.0+build3-0ubuntu0.16.04.1
- 65.0+build2-0ubuntu0.16.04.1
- 65.0.1+build2-0ubuntu0.16.04.1
- 66.0+build3-0ubuntu0.16.04.2
- 66.0.1+build1-0ubuntu0.16.04.1
- 66.0.2+build1-0ubuntu0.16.04.1
- 66.0.3+build1-0ubuntu0.16.04.1
- 66.0.4+build3-0ubuntu0.16.04.1
- 66.0.5+build1-0ubuntu0.16.04.1
- 67.0+build2-0ubuntu0.16.04.1
- 67.0.1+build1-0ubuntu0.16.04.1
- 67.0.2+build2-0ubuntu0.16.04.1
- 67.0.3+build1-0ubuntu0.16.04.1
- 67.0.4+build1-0ubuntu0.16.04.1
- 68.0+build3-0ubuntu0.16.04.1
- 68.0.1+build1-0ubuntu0.16.04.1
- 68.0.2+build1-0ubuntu0.16.04.1
- 69.0+build2-0ubuntu0.16.04.4
- 69.0.1+build1-0ubuntu0.16.04.1
- 69.0.2+build1-0ubuntu0.16.04.1
- 70.0+build2-0ubuntu0.16.04.1
- 70.0.1+build1-0ubuntu0.16.04.1
- 71.0+build5-0ubuntu0.16.04.1
- 72.0.1+build1-0ubuntu0.16.04.1
- 72.0.2+build1-0ubuntu0.16.04.1
- 73.0.1+build1-0ubuntu0.16.04.1
- 74.0+build3-0ubuntu0.16.04.1
- 74.0.1+build1-0ubuntu0.16.04.1
- 75.0+build3-0ubuntu0.16.04.1
- Affected ranges
- ECOSYSTEM: < 76.0+build2-0ubuntu0.16.04.1
Update to 76.0+build2-0ubuntu0.16.04.1
thunderbird Ubuntu:16.04:LTS
- Versions
- 1:38.3.0+build1-0ubuntu2
- 1:38.5.1+build2-0ubuntu1
- 1:38.6.0+build1-0ubuntu1
- 1:38.7.2+build1-0ubuntu0.16.04.1
- 1:38.8.0+build1-0ubuntu0.16.04.1
- 1:45.2.0+build1-0ubuntu0.16.04.1
- 1:45.3.0+build1-0ubuntu0.16.04.2
- 1:45.4.0+build1-0ubuntu0.16.04.1
- 1:45.5.1+build1-0ubuntu0.16.04.1
- 1:45.7.0+build1-0ubuntu0.16.04.1
- 1:45.8.0+build1-0ubuntu0.16.04.1
- 1:52.1.1+build1-0ubuntu0.16.04.1
- 1:52.2.1+build1-0ubuntu0.16.04.1
- 1:52.3.0+build1-0ubuntu0.16.04.1
- 1:52.4.0+build1-0ubuntu0.16.04.2
- 1:52.5.0+build1-0ubuntu0.16.04.1
- 1:52.6.0+build1-0ubuntu0.16.04.1
- 1:52.7.0+build1-0ubuntu0.16.04.1
- 1:52.8.0+build1-0ubuntu0.16.04.1
- 1:52.9.1+build3-0ubuntu0.16.04.1
- 1:60.2.1+build1-0ubuntu0.16.04.4
- 1:60.4.0+build2-0ubuntu0.16.04.1
- 1:60.5.1+build2-0ubuntu0.16.04.1
- 1:60.6.1+build2-0ubuntu0.16.04.1
- 1:60.7.0+build1-0ubuntu0.16.04.1
- 1:60.7.1+build1-0ubuntu0.16.04.1
- 1:60.7.2+build2-0ubuntu0.16.04.1
- 1:60.8.0+build1-0ubuntu0.16.04.2
- 1:60.9.0+build1-0ubuntu0.16.04.2
- 1:60.9.1+build1-0ubuntu0.16.04.1
- 1:68.7.0+build1-0ubuntu0.16.04.2
- Affected ranges
- ECOSYSTEM: < 1:68.8.0+build2-0ubuntu0.16.04.2
Update to 1:68.8.0+build2-0ubuntu0.16.04.2
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
- Affected ranges
- ECOSYSTEM: < 76.0+build2-0ubuntu0.18.04.1
Update to 76.0+build2-0ubuntu0.18.04.1
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
- Affected ranges
- ECOSYSTEM: < 1:68.8.0+build2-0ubuntu0.18.04.2
Update to 1:68.8.0+build2-0ubuntu0.18.04.2
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
- Affected ranges
- ECOSYSTEM: < 76.0+build2-0ubuntu0.20.04.1
Update to 76.0+build2-0ubuntu0.20.04.1
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
- Affected ranges
- ECOSYSTEM: < 1:68.8.0+build2-0ubuntu0.20.04.2
Update to 1:68.8.0+build2-0ubuntu0.20.04.2
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
Original sources
- https://www.mozilla.org/security/advisories/mfsa2020-18/
- https://www.mozilla.org/security/advisories/mfsa2020-16/
- https://www.mozilla.org/security/advisories/mfsa2020-17/
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%2C1624098%2C1625749%2C1626382%2C1628076%2C1631508
- https://usn.ubuntu.com/4373-1/
- https://security.gentoo.org/glsa/202005-03
- https://security.gentoo.org/glsa/202005-04
- https://nvd.nist.gov/vuln/detail/CVE-2020-12395