CVE-2016-9555: The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel before 4.8.8 lacks chunk-length ch...

Security readout for executives and security teams

CVE-2016-9555 is a Linux kernel SCTP flaw fixed before Linux 4.8.8. A remote sender could craft SCTP traffic that triggers out-of-bounds slab access, causing denial of service and possibly other unspecified impact. The source bundle does not show active exploitation. Exposure is most relevant to Linux systems running vulnerable kernels or vendor kernels without the backported fix, especially where SCTP traffic can reach the host or appliance. Product-specific scope is incomplete in the bundle beyond Linux kernel and vendor advisories. Treat this as a targeted infrastructure hardening item, not an emergency based on current evidence. Prioritize internet-facing or externally reachable Linux systems that use or allow SCTP, and close the patch gap through normal kernel maintenance. Mitigation focus: Apply vendor kernel updates that include the SCTP chunk-length fix.; Confirm Linux kernel 4.8.8 or an equivalent vendor backport is installed.; Review SUSE, Red Hat, and appliance vendor advisories for affected package guidance..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

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