CVE-2013-3227: The caif_seqpkt_recvmsg function in net/caif/caif_socket.c in the Linux kernel before 3.9-rc7 does not init...

Security readout for executives and security teams

CVE-2013-3227 is a Linux kernel information leak. A local user could make the CAIF socket code return uninitialized kernel stack data, potentially exposing sensitive memory. The available sources identify a kernel fix before Linux 3.9-rc7 and several vendor advisories, but do not show active exploitation. Exposure is most relevant to Linux systems running affected kernels before the upstream fix, especially where untrusted local users or workloads can access CAIF socket functionality. The bundle does not provide a complete affected-version matrix for each distribution. Treat as a moderate-priority kernel hygiene issue. It is not described as remote code execution, but local memory disclosure can weaken isolation and support broader compromise chains on shared systems. Mitigation focus: Apply the fixed kernel or vendor kernel update from the relevant Linux distribution advisory.; Prioritize systems with untrusted shell, shared hosting, or multi-tenant workload access.; Confirm the running kernel includes the upstream fix or vendor backport..

Prepared

Jun 14, 2026, 22:07 UTC (UTC+00:00)

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