Mozilla Firefox and Firefox ESR are vulnerable to memory corruption attacks. An attacker could execute arbitrary code in the context of the affected application which may leads to result in denial of service conditions.
www.securityfocus.com/bid/104555
access.redhat.com/errata/RHSA-2018:2112
access.redhat.com/errata/RHSA-2018:2113
access.redhat.com/errata/RHSA-2018:2251
access.redhat.com/errata/RHSA-2018:2252
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/buglist.cgi?bug_id=1456189%2C1456975%2C1465898%2C1392739%2C1451297%2C1464063%2C1437842%2C1442722%2C1452576%2C1450688%2C1458264%2C1458270%2C1465108%2C1464829%2C1464079%2C1463494%2C1458048
lists.debian.org/debian-lts-announce/2018/06/msg00014.html
lists.debian.org/debian-lts-announce/2018/07/msg00013.html
security.gentoo.org/glsa/201810-01
security.gentoo.org/glsa/201811-13
usn.ubuntu.com/3705-1/
usn.ubuntu.com/3714-1/
usn.ubuntu.com/3749-1/
www.debian.org/security/2018/dsa-4244
www.mozilla.org/en-US/security/advisories/mfsa2018-16/
www.mozilla.org/security/advisories/mfsa2018-15/
www.mozilla.org/security/advisories/mfsa2018-16/
www.mozilla.org/security/advisories/mfsa2018-17/
www.mozilla.org/security/advisories/mfsa2018-18/
www.mozilla.org/security/advisories/mfsa2018-19/