CVE-2005-2657: Unknown vulnerability in common-lisp-controller 4.18 and earlier allows local users to gain privileges by c...

Security readout for executives and security teams

This is an old local privilege-escalation issue in common-lisp-controller 4.18 and earlier. A local user could place compiled code in a cache path that might later run under another user’s account when that user first uses Common Lisp. Business risk is mainly on shared Linux systems, not internet-facing exposure. Likely exposure is limited to systems running common-lisp-controller 4.18 or earlier, especially multi-user Debian/Linux environments with local shell access. Systems without the package, without local untrusted users, or with newer vendor packages are less likely exposed. Treat as a targeted legacy exposure issue. It is not described as remotely exploitable, but it can matter on shared systems where local privilege boundaries protect sensitive data or administration access. Prioritize inventory and patch verification over emergency response unless exposed legacy hosts are found. Mitigation focus: Check whether common-lisp-controller is installed and whether the version is 4.18 or earlier.; Apply the Debian DSA-811 update or current vendor-supported package guidance.; Remove common-lisp-controller where it is not operationally required..

Prepared

Jun 29, 2026, 17:57 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.