{"id":"CVE-2019-15134","aliases":["EUVD-2019-6202","GHSA-8vq3-x8qc-6gpc"],"status":"published","title":"RIOT through 2019.07 contains a memory leak in the TCP implementation (gnrc_tcp), allowing an...","description":"RIOT through 2019.07 contains a memory leak in the TCP implementation (gnrc_tcp), allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to _receive in sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c upon receiving an ACK before a SYN.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01512,"percentile":0.7464,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-401"],"published":"2019-08-17T17:54:54Z","modified":"2026-06-17T02:19:46Z","products":[{"vendor":"riot-os","product":"riot"}],"references":[{"url":"https://github.com/RIOT-OS/RIOT/pull/12001","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-15134"},{"url":"https://github.com/advisories/GHSA-8vq3-x8qc-6gpc"}],"sources":{"cve":[{"id":"CVE-2019-15134","description":"RIOT through 2019.07 contains a memory leak in the TCP implementation (gnrc_tcp), allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to _receive in sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c upon receiving an ACK before a SYN.","status":"published","published":"2019-08-17T17:54:54Z","modified":"2024-08-05T00:34:53.278Z","updated_at":"2026-11-02T14:20:21.059499Z"}],"euvd":[{"id":"EUVD-2019-6202","description":"RIOT through 2019.07 contains a memory leak in the TCP implementation (gnrc_tcp), allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to _receive in sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c upon receiving an ACK before a SYN.","status":"published","published":"2019-08-17T17:54:54Z","modified":"2024-08-05T00:34:53Z","updated_at":"2026-11-03T02:40:37.184704Z"}],"ghsa":[{"id":"GHSA-8vq3-x8qc-6gpc","title":"RIOT through 2019.07 contains a memory leak in the TCP implementation (gnrc_tcp), allowing an...","description":"RIOT through 2019.07 contains a memory leak in the TCP implementation (gnrc_tcp), allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to _receive in sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c upon receiving an ACK before a SYN.","status":"published","published":"2022-05-24T16:53:51Z","modified":"2023-01-28T05:07:09Z","updated_at":"2026-11-02T14:44:29.724528Z"}],"nvd":[{"id":"CVE-2019-15134","description":"RIOT through 2019.07 contains a memory leak in the TCP implementation (gnrc_tcp), allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to _receive in sys/net/gnrc/transport_layer/tcp/gnrc_tcp_eventloop.c upon receiving an ACK before a SYN.","status":"published","published":"2019-08-17T18:15:10.847Z","modified":"2026-06-17T02:19:46.12Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T14:05:22.878504Z"}]}}