An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC…

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.

Scores

EPSS (exploitation in 30 days)

4.4% · top 8.6% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.

Weakness

• Privilege escalation through IPC channel messages
• CWE-287 (opens in a new tab)All about CWE-287 and its CVEs

Affected products

• Mozilla · Thunderbird

  • affected unspecified – < 60.5

• Mozilla · Firefox ESR

  • affected unspecified – < 60.5

• Mozilla · Firefox

  • affected unspecified – < 65

References (18)

• RHSA-2019:0219 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://www.mozilla.org/security/advisories/mfsa2019-01/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-3897-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• https://bugzilla.mozilla.org/show_bug.cgi?id=1087565 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 106781 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• GLSA-201903-04 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• USN-3874-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• RHSA-2019:0269 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2019:0218 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://www.mozilla.org/security/advisories/mfsa2019-02/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• DSA-4376 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• [debian-lts-announce] 20190216 [SECURITY] [DLA 1678-1] thunderbird security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [debian-lts-announce] 20190130 [SECURITY] [DLA 1648-1] firefox-esr security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://www.mozilla.org/security/advisories/mfsa2019-03/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• DSA-4392 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• RHSA-2019:0270 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• GLSA-201904-07 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• openSUSE-SU-2019:1758 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2018-18505](https://trackcve.app/badge/CVE-2018-18505.svg)](https://trackcve.app/cve/CVE-2018-18505)

Record last updated 5 Aug 2024, 11:08 UTC.