CVE-2017-13711: Use-after-free vulnerability in the sofree function in slirp/socket.c in QEMU (aka Quick Emulator) allows a...

Security readout for executives and security teams

CVE-2017-13711 is a QEMU Slirp networking bug that can crash a QEMU instance. The public record describes denial of service, not data theft or code execution. Business impact depends on whether affected QEMU networking is used for important virtual machines. Likely exposure is QEMU deployments using Slirp/user-mode networking before relevant vendor updates. The bundle names QEMU and vendor advisories from Debian and Red Hat, but does not provide exact affected versions or package boundaries. Handle as a targeted reliability risk in virtualization environments. It is not supported as actively exploited in the provided sources, but patched QEMU updates should be prioritized where crashes could disrupt customer-facing or operational services. Mitigation focus: Review QEMU guidance in Debian DSA-3991 and applicable Red Hat RHSA advisories.; Apply vendor QEMU security updates where your distribution matches the advisories.; Inventory systems using QEMU Slirp or user-mode networking..

Prepared

Jun 12, 2026, 21:19 UTC (UTC+00:00)

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