CVE-2017-13006: The L2TP parser in tcpdump before 4.9.2 has a buffer over-read in print-l2tp.c, several functions.

Security readout for executives and security teams

This flaw affects tcpdump versions before 4.9.2 when parsing L2TP data. A vulnerable parser can read beyond its intended buffer. For executives, the concern is exposure on systems or analyst workstations that inspect network traffic, especially untrusted captures or live traffic. Likely exposed assets are systems using tcpdump before 4.9.2 to inspect L2TP traffic or packet captures. Vendor package exposure may vary across distributions and Apple/Red Hat/Debian/Gentoo advisories. The provided affected product metadata is incomplete, so local inventory is required. Prioritize remediation where tcpdump runs on security monitoring hosts, jump boxes, analyst workstations, or appliances that process untrusted traffic. The fix path appears straightforward, but exposure can be overlooked because tcpdump is often treated as a utility rather than a managed application. Mitigation focus: Upgrade tcpdump to 4.9.2 or a vendor-supported fixed package.; Apply relevant OS vendor advisories for Gentoo, Debian, Apple, or Red Hat environments.; Restrict vulnerable tcpdump use on untrusted traffic until patched..

Prepared

May 22, 2026, 17:45 UTC (UTC+00:00)

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