Buffer overflow in Mozilla Firefox and Firefox ESR - CVE-2019-17015

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error during the initialization of a new content process. A remote attacker can create a specially crafted web site, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability affects Windows users only.

How to mitigate CVE-2019-17015

Sources

• https://www.mozilla.org/en-US/security/advisories/mfsa2020-01/
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-02/