high8.8
CVE-2020-15669
When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified.
Impact
When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox Esr | before 68.12 |
| Mozilla | Thunderbird | before 68.12 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/show_bug.cgi?id=1656957
- https://www.mozilla.org/security/advisories/mfsa2020-37/
- https://www.mozilla.org/security/advisories/mfsa2020-40/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1656957
- https://www.mozilla.org/security/advisories/mfsa2020-37/
- https://www.mozilla.org/security/advisories/mfsa2020-40/