CVE-2018-18505

Vulnerability 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 Score

Affected Products

Related Weaknesses (CWE)

References

• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
• http://www.securityfocus.com/bid/106781Third Party AdvisoryVDB Entry
• https://access.redhat.com/errata/RHSA-2019:0218Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0219Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0269Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0270Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1087565Issue TrackingPatchVendor Advisory
• https://lists.debian.org/debian-lts-announce/2019/01/msg00025.htmlMailing ListThird Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/02/msg00024.htmlMailing ListThird Party Advisory
• https://security.gentoo.org/glsa/201903-04Third Party Advisory
• https://security.gentoo.org/glsa/201904-07Third Party Advisory
• https://usn.ubuntu.com/3874-1/Third Party Advisory
• https://usn.ubuntu.com/3897-1/Third Party Advisory
• https://www.debian.org/security/2019/dsa-4376Third Party Advisory
• https://www.debian.org/security/2019/dsa-4392Third Party Advisory