CVE-2018-18493

CVSS V2 High 7.5 CVSS V3 Critical 9.8

Description

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.

Overview

CVE ID
CVE-2018-18493

Assigner
security@mozilla.org

Vulnerability Status
Analyzed

Published Version
2019-02-28T18:29:01

Last Modified Date
2019-03-11T15:38:35

Weakness Enumerations

CWE	URL
CWE-119	http://cwe.mitre.org/data/definitions/119.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
cpe:2.3:a:mozilla:firefox::::::::	1	OR	64.0
cpe:2.3:a:mozilla:firefox_esr::::::::	1	OR	60.4.0
cpe:2.3:a:mozilla:thunderbird::::::::	1	OR	60.4.0
cpe:2.3:o:debian:debian_linux:8.0:::::::*	1	OR
cpe:2.3:o:debian:debian_linux:9.0:::::::*	1	OR
cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::	1	OR
cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_server:6.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
7.5

Severity
HIGH

Exploitability Score
10

Impact Score
6.4

CVSS Version 3

Version
3.0

Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
9.8

Base Severity
CRITICAL

Exploitability Score
3.9

Impact Score
5.9

References

Reference URL	Reference Tags
https://www.mozilla.org/security/advisories/mfsa2018-31/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-30/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-29/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1504452	Issue Tracking Permissions Required Vendor Advisory
https://www.debian.org/security/2019/dsa-4362	Third Party Advisory
https://www.debian.org/security/2018/dsa-4354	Third Party Advisory
https://usn.ubuntu.com/3868-1/	Third Party Advisory
https://usn.ubuntu.com/3844-1/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00002.html	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0160	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0159	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3833	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3831	Third Party Advisory
http://www.securityfocus.com/bid/106168	Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201903-04	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-18493
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18493

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:54:52				Added to TrackCVE
2022-12-03 17:45:54	2019-02-28T18:29Z	2019-02-28T18:29:01	CVE Published Date	updated
2022-12-03 17:45:54		2019-03-11T15:38:35	CVE Modified Date	updated
2022-12-03 17:45:54		Analyzed	Vulnerability Status	updated