KLA11425
Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to cause denial of service, bypass security restrictions.

Below is a complete list of vulnerabilities:

1. A use-after-free vulnerability related to Skia library can be exploited remotely to cause denial of service;
2. An integer overflow vulnerability related to Skia library can be exploited remotely to cause denial of service;
3. A buffer overflow vulnerability related to Skia library can be exploited remotely to cause denial of service;
4. A vulnerability related to verification of certain S/MIME signatures can be exploited remotely to bypass security restrictions.

Technical details

Vulnerability (3) affected only macOS platform.

Mozilla Thunderbird earlier than 60.5.1

Update to the latest version
Download Mozilla Thunderbird

Mozilla Foundation Security Advisory 2019-06