CVE-2019-11757

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 1.3%

exploitation probability

1.3%top 30% of all CVEs

observed exploitation

nono source reports it

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

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

References

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/