CVE-2018-18505

Advisory lineage Upstream: 0 Downstream: 23
Modified
Published: 05 Feb 2019, 21:00
Last modified:05 Aug 2024, 11:08

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
10 CRITICAL
v3.0 (nvd)
EPSS Score
2.04% LOW
2% probability -1.10%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 Feb 2019, 21:00
Published
Vulnerability first disclosed
05 Aug 2024, 11:08
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.0•CRITICAL•Score: 10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 2.04%• Percentile: 84%

Techniques & Countermeasures

  • CWE-287•Improper Authentication

    When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 18.10

  • debian•debian_linux

    8.0 | 9.0

  • Unknown•Firefox

    < 60.5.0 | < 65.0 | ≥ unspecified, < 65

  • mozilla•firefox_esr

    ≥ unspecified, < 60.5

  • mozilla•thunderbird

    < 60.5.0 | ≥ unspecified, < 60.5

  • redhat•enterprise_linux_desktop

    6.0 | 7.0

  • redhat•enterprise_linux_server

    6.0 | 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 | 7.0

References (18)