CVE-2018-18493
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 5.0%
exploitation probability
5.0%top 8% of all CVEs
observed exploitation
nono source reports it
A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.
References
https://access.redhat.com/errata/RHSA-2018:3831https://access.redhat.com/errata/RHSA-2018:3833https://access.redhat.com/errata/RHSA-2019:0159https://access.redhat.com/errata/RHSA-2019:0160https://bugzilla.mozilla.org/show_bug.cgi?id=1504452https://lists.debian.org/debian-lts-announce/2018/12/msg00002.htmlhttps://security.gentoo.org/glsa/201903-04https://usn.ubuntu.com/3844-1/https://usn.ubuntu.com/3868-1/https://www.debian.org/security/2018/dsa-4354https://www.debian.org/security/2019/dsa-4362https://www.mozilla.org/security/advisories/mfsa2018-29/