CVE-2018-18493
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.009 Low
EPSS
Percentile
82.7%
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
www.securityfocus.com/bid/106168
access.redhat.com/errata/RHSA-2018:3831
access.redhat.com/errata/RHSA-2018:3833
access.redhat.com/errata/RHSA-2019:0159
access.redhat.com/errata/RHSA-2019:0160
bugzilla.mozilla.org/show_bug.cgi?id=1504452
lists.debian.org/debian-lts-announce/2018/12/msg00002.html
security.gentoo.org/glsa/201903-04
usn.ubuntu.com/3844-1/
usn.ubuntu.com/3868-1/
www.debian.org/security/2018/dsa-4354
www.debian.org/security/2019/dsa-4362
www.mozilla.org/security/advisories/mfsa2018-29/
www.mozilla.org/security/advisories/mfsa2018-30/
www.mozilla.org/security/advisories/mfsa2018-31/
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.009 Low
EPSS
Percentile
82.7%