CVE-2017-5446

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 53 Firefox ESR versions prior to 52.1 Firefox ESR versions prior to 45.9 Thunderbird versions prior to 52.1

Description The issue is related to an out-of-bounds read when an HTTP/2 connection to a server sends "DATA" frames with incorrect data content, potentially leading to a crash. This can be exploited by a remote attacker to cause a denial of service.

Recommendations For Firefox versions prior to 53, update to version 53 or later. For Firefox ESR versions prior to 52.1, update to version 52.1 or later. For Firefox ESR versions prior to 45.9, update to version 45.9 or later. For Thunderbird versions prior to 52.1, update to version 52.1 or later.