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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 10.0 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 4.54% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- mozilla/firefox · mozilla/thunderbird · canonical/ubuntu linux · debian/debian linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- security@mozilla.org
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
- http://www.securityfocus.com/bid/106781Third Party Advisory, VDB 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 Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00025.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00024.htmlMailing List, Third 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
- https://www.mozilla.org/security/advisories/mfsa2019-01/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-02/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-03/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html
- http://www.securityfocus.com/bid/106781Third Party Advisory, VDB 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 Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00025.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00024.htmlMailing List, Third 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.