{ "data_type": "CVE", "data_format": "MITRE", "data_version": "4.0", "CVE_data_meta": { "ID": "CVE-2020-7464", "ASSIGNER": "secteam@freebsd.org", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "n/a", "product": { "product_data": [ { "product_name": "FreeBSD", "version": { "version_data": [ { "version_value": "FreeBSD 12.1-RELEASE before p10, 11.4-RELEASE before p4, 11.3-RELEASE before p14" } ] } } ] } } ] } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Improper Calculation of Buffer Size" } ] } ] }, "references": { "reference_data": [ { "refsource": "MISC", "name": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:27.ure.asc", "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:27.ure.asc" } ] }, "description": { "description_data": [ { "lang": "eng", "value": "In FreeBSD 12.2-STABLE before r365730, 11.4-STABLE before r365738, 12.1-RELEASE before p10, 11.4-RELEASE before p4, and 11.3-RELEASE before p14, a programming error in the ure(4) device driver caused some Realtek USB Ethernet interfaces to incorrectly report packets with more than 2048 bytes in a single USB transfer as having a length of only 2048 bytes. An adversary can exploit this to cause the driver to misinterpret part of the payload of a large packet as a separate packet, and thereby inject packets across security boundaries such as VLANs." } ] } }