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CVE-2018-18505
CRITICAL
An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC endpoints and server parents during IPC process creation. This authentication is insufficient for channels created after the IPC process is started, leading to the authentication not being correctly applied to later channels. This could allow for a sandbox escape through IPC channels due to lack of message validation in the listener process. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.
Published: Feb 5, 2019
Modified: Jun 17, 2026
CWE-287
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products (18)
| Vendor | Product | Version |
|---|---|---|
| mozilla | firefox | * < 60.5.0 |
| mozilla | firefox | * < 65.0 |
| mozilla | thunderbird | * < 60.5.0 |
| 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_server_tus | 7.6 |
| redhat | enterprise_linux_workstation | 6.0 |
| redhat | enterprise_linux_workstation | 7.0 |
GitHub Security Advisory GHSA-5g4g-56fq-mvwf
An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added...
References (36)
- 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://bugzilla.mozilla.org/show_bug.cgi?id=1087565 Issue Tracking, Patch, Vendor 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 Third Party Advisory
- 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
Risk Scores
CVSS Score
10.0 / 10
EPSS Score
4.54%
Top 9% most likely to be exploited
Threat Score
41.4 / 100
Data Sources
NVD
EPSS
GitHub