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CVE-2018-18498
CRITICAL
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.
Published: Feb 28, 2019
Modified: Jun 17, 2026
CWE-190
CWE-787
CVSS Metrics
CVSSv3
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
Affected Products (18)
| Vendor | Product | Version |
|---|---|---|
| mozilla | firefox | * < 64.0 |
| mozilla | firefox_esr | * < 60.4 |
| mozilla | thunderbird | * < 60.4 |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
| canonical | ubuntu_linux | 14.04 |
| canonical | ubuntu_linux | 16.04 |
| canonical | ubuntu_linux | 18.04 |
| canonical | ubuntu_linux | 18.10 |
| redhat | enterprise_linux_desktop | 6.0 |
| redhat | enterprise_linux_desktop | 7.0 |
| redhat | enterprise_linux_server | 6.0 |
| redhat | enterprise_linux_server | 7.0 |
| redhat | enterprise_linux_server_aus | 7.6 |
| redhat | enterprise_linux_server_eus | 7.6 |
| redhat | enterprise_linux_server_tus | 7.6 |
| redhat | enterprise_linux_workstation | 6.0 |
| redhat | enterprise_linux_workstation | 7.0 |
GitHub Security Advisory GHSA-qw4q-g9g4-q5fj
A potential vulnerability leading to an integer overflow can occur during buffer size...
References (30)
- http://www.securityfocus.com/bid/106168 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3831 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3833 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0159 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0160 Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1500011 Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/12/msg00002.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-04 Third Party Advisory
- https://usn.ubuntu.com/3844-1/ Third Party Advisory
- https://usn.ubuntu.com/3868-1/ Third Party Advisory
- https://www.debian.org/security/2018/dsa-4354 Third Party Advisory
- https://www.debian.org/security/2019/dsa-4362 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-29/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-30/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-31/ Vendor Advisory
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
4.03%
Top 10% most likely to be exploited
Threat Score
40.4 / 100
Data Sources
NVD
EPSS
GitHub