CVE-2019-11707

Description

A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 60.7.1, Firefox < 67.0.3, and Thunderbird < 60.7.2.

From the Tenable Blog

CVE-2019-11707, CVE-2019-11708: Multiple Zero-Day Vulnerabilities in Mozilla Firefox Exploited in the Wild

Published: 2019-06-19

Security researchers discover two zero-day vulnerabilities in Mozilla Firefox used in targeted attacks. Editor’s Note: This blog was updated on June 20 to reflect additional information regarding a second vulnerability used in combination with CVE-2019-11707, as well as security updates from Mozilla. 

References

https://www.tenable.com/blog/cve-2019-11707-critical-type-confusion-zero-day-in-mozilla-firefox-exploited-in-the-wild

https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2019/CVE-2019-11707.html

https://www.tenable.com/blog/cve-2019-11707-cve-2019-11708-multiple-zero-day-vulnerabilities-in-mozilla-firefox-exploited-in

https://www.mozilla.org/security/advisories/mfsa2019-20/

https://www.mozilla.org/security/advisories/mfsa2019-18/

https://security.gentoo.org/glsa/201908-12

https://bugzilla.mozilla.org/show_bug.cgi?id=1544386

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3