CVE-2018-18505

Summary

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.

Affected Software

VendorProductVersion RangeStatus
MozillaThunderbirdunspecified < 60.5affected
MozillaFirefox ESRunspecified < 60.5affected
MozillaFirefoxunspecified < 65affected

Weaknesses

  • Privilege escalation through IPC channel messages

ADP Enrichment

CVE Program Container

Additional References

References