VDB

CVE-2018-18505

CVE-2018-18505 PUBLISHED CVSS 10 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.

EPSS 4.54% · 90.9th percentile

Risk Scores

CVSS 3.0
10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score
4.54%
90.9th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSthunderbird*, *, 1:60.2.1+build1-0ubuntu0.18.04.2
Ubuntu:20.04:LTSmozjs5252.9.1-1ubuntu3, 52.9.1-1build1, 0
Ubuntu:14.04:LTSthunderbird1:31.2.0+build2-0ubuntu0.14.04.1, 1:31.3.0+build1-0ubuntu0.14.04.1, 1:31.5.0+build1-0ubuntu0.14.04.1
Ubuntu:16.04:LTSfirefox51.0.1+build2-0ubuntu0.16.04.2, 0, 42.0+build2-0ubuntu1
Ubuntu:16.04:LTSthunderbird1:60.2.1+build1-0ubuntu0.16.04.4, *, *
Ubuntu:14.04:LTSfirefox*, *, 29.0+build1-0ubuntu0.14.04.2
Ubuntu:18.04:LTSfirefox56.0+build6-0ubuntu1, 57.0.1+build2-0ubuntu1, 59.0.1+build1-0ubuntu1
Ubuntu:18.04:LTSmozjs5252.3.1-7fakesync1, 52.9.1-0ubuntu0.18.04.1, 52.8.1-0ubuntu0.18.04.1
Ubuntu:18.04:LTSmozjs38*, 0, 38.8.0~repack1-0ubuntu1

Timeline

  • Jan 30, 2019 CVE Published
  • Apr 14, 2021 EPSS Score
  • Aug 25, 2021 EPSS Score
  • Oct 26, 2021 EPSS Score
  • Feb 4, 2022 EPSS Score
  • May 3, 2022 EPSS Score
  • Jul 5, 2022 EPSS Score
  • Nov 8, 2022 EPSS Score
  • Mar 7, 2023 EPSS Score
  • Mar 14, 2023 EPSS Score
  • Jul 17, 2023 EPSS Score
  • Nov 20, 2023 EPSS Score
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