Back
CVE-2018-18501
CRITICAL
Mozilla developers and community members reported memory safety bugs present in Firefox 64 and Firefox ESR 60.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.
Published: Feb 5, 2019
Modified: Jun 17, 2026
CWE-119
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 (17)
| Vendor | Product | Version |
|---|---|---|
| mozilla | firefox | * < 65.0 |
| mozilla | firefox_esr | * < 60.5 |
| mozilla | thunderbird | * < 60.5 |
| canonical | ubuntu_linux | 14.04 |
| canonical | ubuntu_linux | 16.04 |
| canonical | ubuntu_linux | 18.04 |
| canonical | ubuntu_linux | 18.10 |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
| 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_workstation | 6.0 |
| redhat | enterprise_linux_workstation | 7.0 |
GitHub Security Advisory GHSA-4hxm-f92j-36cq
Mozilla developers and community members reported memory safety bugs present in Firefox 64 and...
References (34)
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
- http://www.securityfocus.com/bid/106781 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0218 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0219 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0269 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0270 Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00025.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-04 Third Party Advisory
- https://security.gentoo.org/glsa/201904-07
- https://usn.ubuntu.com/3874-1/ Third Party Advisory
- https://usn.ubuntu.com/3897-1/ Third Party Advisory
- https://www.debian.org/security/2019/dsa-4376 Third Party Advisory
- https://www.debian.org/security/2019/dsa-4392 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-01/ Vendor Advisory
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
3.47%
Top 12% most likely to be exploited
Threat Score
40.2 / 100
Data Sources
NVD
EPSS
GitHub