peter bassill · operator
$ cve CVE-2018-18505 JSON

CVE-2018-18505

10.0
CRITICAL · CVSS 3.0 · EPSS 4.4% (pctl 91)

In your normal cycle

Critical by CVSS (10), but no sign of active exploitation.

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.

Scoring

CVSS10.0 (CRITICAL, v3.0)
VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS4.42% — more likely to be exploited than 91% of all CVEs
WeaknessCWE-287
On CISA KEVno
Public exploitnone known
Published2019-02-05
Last modified2026-06-17

Affected (10)

VendorProduct
canonicalubuntu linux
debiandebian linux
mozillafirefox
mozillathunderbird
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux server aus
redhatenterprise linux server eus
redhatenterprise linux server tus
redhatenterprise linux workstation

References

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