Vulnerability Details : CVE-2018-18505
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.
Vulnerability category: BypassGain privilege
Exploit prediction scoring system (EPSS) score for CVE-2018-18505
Probability of exploitation activity in the next 30 days: 0.79%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 79 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-18505
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
[email protected] |
|
10.0
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
3.9
|
6.0
|
[email protected] |
CWE ids for CVE-2018-18505
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: [email protected] (Primary)
References for CVE-2018-18505
-
https://security.gentoo.org/glsa/201904-07
Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:0218
Third Party Advisory
-
https://www.debian.org/security/2019/dsa-4376
Third Party Advisory
-
https://usn.ubuntu.com/3874-1/
Third Party Advisory
-
http://www.securityfocus.com/bid/106781
Third Party Advisory;VDB Entry
-
https://usn.ubuntu.com/3897-1/
Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
-
https://www.mozilla.org/security/advisories/mfsa2019-01/
Vendor Advisory
-
https://access.redhat.com/errata/RHSA-2019:0269
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://access.redhat.com/errata/RHSA-2019:0270
Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:0219
Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2019-03/
Vendor Advisory
-
https://www.debian.org/security/2019/dsa-4392
Third Party Advisory
-
https://security.gentoo.org/glsa/201903-04
Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2019-02/
Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html
Mailing List;Third Party Advisory
Products affected by CVE-2018-18505
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*