Description
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.
References (7)
Core 7
Core References
Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2020-18/
Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2020-16/
Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2020-17/
Broken Link, Issue Tracking x_refsource_misc
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595886%2C1611482%2C1614704%2C1624098%2C1625749%2C1626382%2C1628076%2C1631508
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4373-1/
Third Party Advisory x_refsource_misc
https://security.gentoo.org/glsa/202005-03
Third Party Advisory x_refsource_misc
https://security.gentoo.org/glsa/202005-04
Scores
CVSS v3
9.8
EPSS
0.0127
EPSS Percentile
79.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (7)
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
19.10
canonical/ubuntu_linux
20.04
mozilla/firefox
< 76.0
mozilla/firefox_esr
< 68.8.0
mozilla/thunderbird
< 68.8.0
Published
May 26, 2020
Tracked Since
Feb 18, 2026