CVE-2019-11757

HIGH8.8

When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it

Published Jan 8, 2020

Modified 1 years ago

Details

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.

References

WEB

https://bugzilla.mozilla.org/show_bug.cgi?id=1577107

ADVISORY

https://security.gentoo.org/glsa/202003-10

ADVISORY

https://usn.ubuntu.com/4335-1/

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2019-11757

WEB

https://www.mozilla.org/security/advisories/mfsa2019-33/

WEB