https://vulnerability.circl.lu/sightings/feed 2026-05-31T07:17:10.744919+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent sightings. https://vulnerability.circl.lu/sighting/b39ded2d-25ae-48b4-b527-c5b733a36a7d/export 2026-05-31T07:17:11.168065+00:00 Automation user https://vulnerability.circl.lu/user/automation {"uuid": "b39ded2d-25ae-48b4-b527-c5b733a36a7d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-23351", "type": "seen", "source": "https://t.me/cibsecurity/24564", "content": "\u203c CVE-2021-23351 \u203c\n\nThe package github.com/pires/go-proxyproto before 0.5.0 are vulnerable to Denial of Service (DoS) via the parseVersion1() function. The reader in this package is a default bufio.Reader wrapping a net.Conn. It will read from the connection until it finds a newline. Since no limits are implemented in the code, a deliberately malformed V1 header could be used to exhaust memory in a server process using this code - and create a DoS. This can be exploited by sending a stream starting with PROXY and continuing to send data (which does not contain a newline) until the target stops acknowledging. The risk here is small, because only trusted sources should be allowed to send proxy protocol headers.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-03-08T07:50:05.000000Z"} 2021-03-08T07:50:05+00:00