high8.8
CVE-2019-11757
When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox | before 70.0 |
| Mozilla | Firefox Esr | before 68.2 |
| Mozilla | Thunderbird | before 68.2 |
| Canonical | Ubuntu Linux | Version 16.04 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/show_bug.cgi?id=1577107
- https://security.gentoo.org/glsa/202003-10
- https://usn.ubuntu.com/4335-1/
- https://www.mozilla.org/security/advisories/mfsa2019-33/
- https://www.mozilla.org/security/advisories/mfsa2019-34/
- https://www.mozilla.org/security/advisories/mfsa2019-35/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1577107
- https://security.gentoo.org/glsa/202003-10
- https://usn.ubuntu.com/4335-1/
- https://www.mozilla.org/security/advisories/mfsa2019-33/
- https://www.mozilla.org/security/advisories/mfsa2019-34/
- https://www.mozilla.org/security/advisories/mfsa2019-35/