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CVE-2019-11757 Details
Description
When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
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=1577107 | CVE | Issue TrackingPermissions Required |
| https://security.gentoo.org/glsa/202003-10 | CVE | Third Party Advisory |
| https://usn.ubuntu.com/4335-1/ | CVE | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-33/ | CVE | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-34/ | CVE | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-35/ | CVE | Vendor Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1577107 | [email protected] | Issue TrackingPermissions Required |
| https://security.gentoo.org/glsa/202003-10 | [email protected] | Third Party Advisory |
| https://usn.ubuntu.com/4335-1/ | [email protected] | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-33/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-34/ | [email protected] | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2019-35/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 70.0 |
CPE
Remediation
| |
| mozilla firefox esr | < 68.2 |
CPE
Remediation
| |
| mozilla thunderbird | < 68.2 |
CPE
Remediation
| |
| canonical ubuntu linux | 16.04 |
CPE
Remediation
| |
Change History
8 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] |
| Feb 1, 2023 | Modified Analysis | [email protected] |
| Apr 29, 2020 | CVE Modified | [email protected] |
| Mar 14, 2020 | CVE Modified | [email protected] |
| Jan 13, 2020 | Reanalysis | [email protected] |
| Jan 10, 2020 | Initial Analysis | [email protected] |