firefox/thunderbird is vulnerable to denial of service. The bufferdata
function in WebGL is vulnerable to a buffer overflow with specific graphics drivers on Linux. This could result in malicious content freezing a tab or triggering a potentially exploitable crash.
access.redhat.com/errata/RHSA-2019:1267
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=1532525
www.mozilla.org/en-US/security/advisories/mfsa2019-14/
www.mozilla.org/security/advisories/mfsa2019-13/
www.mozilla.org/security/advisories/mfsa2019-14/
www.mozilla.org/security/advisories/mfsa2019-15/