Vulnerability Details : CVE-2018-18498
A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2018-18498
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-18498
0.73%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-18498
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-18498
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-18498
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1500011
1500011 - (CVE-2018-18498) Unsafe use of CheckedInt32 in nsContentUtils::CalculateBufferSizeForImageIssue Tracking;Permissions Required;Vendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2018-29/
Security vulnerabilities fixed in Firefox 64 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2018-30/
Security vulnerabilities fixed in Firefox ESR 60.4 — MozillaVendor Advisory
-
https://access.redhat.com/errata/RHSA-2019:0159
RHSA-2019:0159 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://www.debian.org/security/2018/dsa-4354
Debian -- Security Information -- DSA-4354-1 firefox-esrThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:0160
RHSA-2019:0160 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2018:3831
RHSA-2018:3831 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/12/msg00002.html
[SECURITY] [DLA 1605-1] firefox-esr security updateMailing List;Third Party Advisory
-
https://www.debian.org/security/2019/dsa-4362
Debian -- Security Information -- DSA-4362-1 thunderbirdThird Party Advisory
-
https://usn.ubuntu.com/3844-1/
USN-3844-1: Firefox vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://security.gentoo.org/glsa/201903-04
Mozilla Firefox: Multiple vulnerabilities (GLSA 201903-04) — Gentoo securityThird Party Advisory
-
https://usn.ubuntu.com/3868-1/
USN-3868-1: Thunderbird vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2018:3833
RHSA-2018:3833 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://www.securityfocus.com/bid/106168
Mozilla Firefox and Firefox ESR Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
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https://www.mozilla.org/security/advisories/mfsa2018-31/
Security vulnerabilities fixed in Thunderbird 60.4 — MozillaVendor Advisory
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