CVE-2018-18505

10.0 CRITICAL
Published: February 05, 2019 Modified: November 25, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/106781
Source: security@mozilla.org
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:0218
Source: security@mozilla.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0219
Source: security@mozilla.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0269
Source: security@mozilla.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0270
Source: security@mozilla.org
Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1087565
Source: security@mozilla.org
Issue Tracking Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00025.html
Source: security@mozilla.org
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html
Source: security@mozilla.org
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201903-04
Source: security@mozilla.org
Third Party Advisory
https://security.gentoo.org/glsa/201904-07
Source: security@mozilla.org
Third Party Advisory
https://usn.ubuntu.com/3874-1/
Source: security@mozilla.org
Third Party Advisory
https://usn.ubuntu.com/3897-1/
Source: security@mozilla.org
Third Party Advisory
https://www.debian.org/security/2019/dsa-4376
Source: security@mozilla.org
Third Party Advisory
https://www.debian.org/security/2019/dsa-4392
Source: security@mozilla.org
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-01/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-02/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-03/
Source: security@mozilla.org
Vendor Advisory
http://www.securityfocus.com/bid/106781
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:0218
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0219
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0269
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0270
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1087565
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00025.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201903-04
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.gentoo.org/glsa/201904-07
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://usn.ubuntu.com/3874-1/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://usn.ubuntu.com/3897-1/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2019/dsa-4376
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2019/dsa-4392
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-01/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-02/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-03/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

36 reference(s) from NVD

Quick Stats

CVSS v3 Score
10.0 / 10.0
EPSS (Exploit Probability)
3.2%
87th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

mozilla debian redhat canonical