{ "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-5204", "STATE": "PUBLIC", "TITLE": "Buffer overflow vulnerability in uftpd" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "uftpd", "version": { "version_data": [ { "version_value": "< 2.11" } ] } } ] }, "vendor_name": "troglobit" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In uftpd before 2.11, there is a buffer overflow vulnerability in handle_PORT in ftpcmd.c that is caused by a buffer that is 16 bytes large being filled via sprintf() with user input based on the format specifier string %d.%d.%d.%d. The 16 byte size is correct for valid IPv4 addresses (len('255.255.255.255') == 16), but the format specifier %d allows more than 3 digits. This has been fixed in version 2.11" } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-121: Stack-based Buffer Overflow" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/troglobit/uftpd/security/advisories/GHSA-wrpr-xw7q-9wvq", "refsource": "CONFIRM", "url": "https://github.com/troglobit/uftpd/security/advisories/GHSA-wrpr-xw7q-9wvq" }, { "name": "https://github.com/troglobit/uftpd/commit/0fb2c031ce0ace07cc19cd2cb2143c4b5a63c9dd", "refsource": "MISC", "url": "https://github.com/troglobit/uftpd/commit/0fb2c031ce0ace07cc19cd2cb2143c4b5a63c9dd" }, { "refsource": "SUSE", "name": "openSUSE-SU-2020:0069", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00034.html" } ] }, "source": { "advisory": "GHSA-wrpr-xw7q-9wvq", "discovery": "UNKNOWN" } }