Description

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.

References

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/

Details

Risk Information

CVSS v2

CVSS v3