CVE-2020-15670
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Mozilla developers reported memory safety bugs present in Firefox for Android 79. 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 < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.06% probability · 63th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362, CWE-416, CWE-617
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/firefox mobile · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651001%2C1653626%2C1656957Broken Link, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-36/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-38/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-39/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-41/Release Notes, Vendor Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651001%2C1653626%2C1656957Broken Link, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-36/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-38/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-39/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-41/Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.