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CVE-2020-6822 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1544181 | CVE | Issue TrackingPermissions Required |
| https://usn.ubuntu.com/4335-1/ | CVE | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-12/ | CVE | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-13/ | CVE | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-14/ | CVE | Vendor Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1544181 | [email protected] | Issue TrackingPermissions Required |
| https://usn.ubuntu.com/4335-1/ | [email protected] | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-12/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-13/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-14/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 75.0 |
CPE
Remediation
| |
| mozilla firefox esr | < 68.7.0 |
CPE
Remediation
| |
| mozilla thunderbird | < 68.7.0 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| May 1, 2020 | Initial Analysis | [email protected] |
| Apr 29, 2020 | CVE Modified | [email protected] |