CVE-2018-18505

Impact:
Important
Public Date:
2019-01-29
CWE:
CWE-287
Bugzilla:
1670633: CVE-2018-18505 Mozilla: Privilege escalation through IPC channel messages

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2018-18505 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2019:0270 2019-02-04
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2019:0269 2019-02-04
Red Hat Enterprise Linux 7 (firefox) RHSA-2019:0219 2019-01-30
Red Hat Enterprise Linux 6 (firefox) RHSA-2019:0218 2019-01-30

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 8 thunderbird Not affected
Red Hat Enterprise Linux 8 firefox Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Jed Davis as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation