CVE-2020-12410

Description

Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8. 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 < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS Metrics

• v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
• v2.0•HIGH•Score: 9.3AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.56%• Percentile: 69%

Techniques & Countermeasures

• CWE-787•Out-of-bounds Write

  The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

• canonical•ubuntu_linux

  16.04 | 18.04 | 19.10 | 20.04

• mozilla•firefox

  < 76.0 | ≥ unspecified, < 77

• mozilla•firefox_esr

  < 68.8.0 | ≥ unspecified, < 68.9

• mozilla•thunderbird

  ≥ unspecified, < 68.9.0

References (5)

• https://www.mozilla.org/security/advisories/mfsa2020-20/
• https://www.mozilla.org/security/advisories/mfsa2020-21/
• https://www.mozilla.org/security/advisories/mfsa2020-22/
• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1619305%2C1632717
• https://usn.ubuntu.com/4421-1/