high8.8
CVE-2020-6822
On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>.
Impact
On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox | before 75.0 |
| Mozilla | Firefox Esr | before 68.7.0 |
| Mozilla | Thunderbird | before 68.7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/show_bug.cgi?id=1544181
- https://usn.ubuntu.com/4335-1/
- https://www.mozilla.org/security/advisories/mfsa2020-12/
- https://www.mozilla.org/security/advisories/mfsa2020-13/
- https://www.mozilla.org/security/advisories/mfsa2020-14/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1544181
- https://usn.ubuntu.com/4335-1/
- https://www.mozilla.org/security/advisories/mfsa2020-12/
- https://www.mozilla.org/security/advisories/mfsa2020-13/
- https://www.mozilla.org/security/advisories/mfsa2020-14/