{"cve":"CVE-2014-3640","nvd":{"published":"2014-11-07T19:55:02.713","modified":"2026-06-17T00:08:40.303","status":"Modified","description":"The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-476"],"references":["http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg03543.html","http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04598.html","http://lists.nongnu.org/archive/html/qemu-devel/2014-09/msg04707.html","http://rhn.redhat.com/errata/RHSA-2015-0349.html","http://rhn.redhat.com/errata/RHSA-2015-0624.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","qemu:qemu","redhat:enterprise_linux_desktop","redhat:enterprise_linux_hpc_node","redhat:enterprise_linux_server","redhat:enterprise_linux_workstation"],"source":"nvd","synced_at":"2026-10-19T20:34:45.729216538+00:00"},"epss":{"cve":"CVE-2014-3640","score":0.00405,"percentile":0.34761,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}