RHSA-2019:1765

A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed.

Mozilla developers and community members reported memory safety bugs present in Firefox 67 and Firefox ESR 60.7.

A use-after-free vulnerability can occur in HTTP/2 when a cached HTTP/2 stream is closed while still in use, resulting in a potentially exploitable crash.

When an inner window is reused, it does not consider the use of document.domain for cross-origin protections.

As part of a winning Pwn2Own entry, a researcher demonstrated a sandbox escape by installing a malicious language pack and then opening a browser feature that used the compromised translation.

POST requests made by NPAPI plugins, such as Flash, that receive a status 308 redirect response can bypass CORS requirements.

Due to an error while parsing page content, it is possible for properly sanitized user input to be misinterpreted and lead to XSS hazards on web sites in certain circumstances.

A vulnerability exists where the caret ("^") character is improperly escaped constructing some URIs due to it being used as a separator, allowing for possible spoofing of origin attributes.