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Vulnerability Details : CVE-2018-18493

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.
Publish Date : 2019-02-28 Last Update Date : 2019-03-11
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 119

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:3831: firefox security update (Critical) oval:com.redhat.rhsa:def:20183831 unix
RHSA-2018:3833: firefox security update (Critical) oval:com.redhat.rhsa:def:20183833 unix
RHSA-2019:0159: thunderbird security update (Important) oval:com.redhat.rhsa:def:20190159 unix
RHSA-2019:0160: thunderbird security update (Important) oval:com.redhat.rhsa:def:20190160 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-18493

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 18.10 * * * Version Details Vulnerabilities
5 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
6 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
7 Application Mozilla Firefox * * * * Version Details Vulnerabilities
8 Application Mozilla Firefox Esr * * * * Version Details Vulnerabilities
9 Application Mozilla Thunderbird * * * * Version Details Vulnerabilities
10 OS Redhat Enterprise Linux Desktop 6.0 * * * Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Server 6.0 * * * Version Details Vulnerabilities
13 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
14 OS Redhat Enterprise Linux Server Aus 7.6 * * * Version Details Vulnerabilities
15 OS Redhat Enterprise Linux Server Eus 7.6 * * * Version Details Vulnerabilities
16 OS Redhat Enterprise Linux Server Tus 7.6 * * * Version Details Vulnerabilities
17 OS Redhat Enterprise Linux Workstation 6.0 * * * Version Details Vulnerabilities
18 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Debian Debian Linux 2
Mozilla Firefox 1
Mozilla Firefox Esr 1
Mozilla Thunderbird 1
Redhat Enterprise Linux Desktop 2
Redhat Enterprise Linux Server 2
Redhat Enterprise Linux Server Aus 1
Redhat Enterprise Linux Server Eus 1
Redhat Enterprise Linux Server Tus 1
Redhat Enterprise Linux Workstation 2

- References For CVE-2018-18493

https://www.mozilla.org/security/advisories/mfsa2018-31/ CONFIRM
https://www.mozilla.org/security/advisories/mfsa2018-30/ CONFIRM
https://www.mozilla.org/security/advisories/mfsa2018-29/ CONFIRM
https://bugzilla.mozilla.org/show_bug.cgi?id=1504452 CONFIRM
https://www.debian.org/security/2019/dsa-4362
DEBIAN DSA-4362
https://www.debian.org/security/2018/dsa-4354
DEBIAN DSA-4354
https://usn.ubuntu.com/3868-1/
UBUNTU USN-3868-1
https://usn.ubuntu.com/3844-1/
UBUNTU USN-3844-1
https://lists.debian.org/debian-lts-announce/2018/12/msg00002.html
MLIST [debian-lts-announce] 20181213 [SECURITY] [DLA 1605-1] firefox-esr security update
https://access.redhat.com/errata/RHSA-2019:0160
REDHAT RHSA-2019:0160
https://access.redhat.com/errata/RHSA-2019:0159
REDHAT RHSA-2019:0159
https://access.redhat.com/errata/RHSA-2018:3833
REDHAT RHSA-2018:3833
https://access.redhat.com/errata/RHSA-2018:3831
REDHAT RHSA-2018:3831
http://www.securityfocus.com/bid/106168
BID 106168 Mozilla Firefox and Firefox ESR Multiple Security Vulnerabilities Release Date:2019-02-05
https://security.gentoo.org/glsa/201903-04
GENTOO GLSA-201903-04

- Metasploit Modules Related To CVE-2018-18493

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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