high8.8
CVE-2021-23995
When Responsive Design Mode was enabled, it used references to objects that were previously freed.
Impact
When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox | before 88.0 |
| Mozilla | Firefox Esr | before 78.10 |
| Mozilla | Thunderbird | before 78.10 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/show_bug.cgi?id=1699835
- https://www.mozilla.org/security/advisories/mfsa2021-14/
- https://www.mozilla.org/security/advisories/mfsa2021-15/
- https://www.mozilla.org/security/advisories/mfsa2021-16/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1699835
- https://www.mozilla.org/security/advisories/mfsa2021-14/
- https://www.mozilla.org/security/advisories/mfsa2021-15/
- https://www.mozilla.org/security/advisories/mfsa2021-16/