{"id":"CVE-2020-24334","aliases":["EUVD-2020-17068","GHSA-38jp-4v3p-cc3q"],"status":"published","title":"The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does...","description":"The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02434,"percentile":0.84378,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2020-12-11T22:42:04Z","modified":"2026-10-24T10:30:34Z","products":[{"vendor":"uip_project","product":"uip"}],"references":[{"url":"https://www.kb.cert.org/vuls/id/815128","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource","advisory"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-24334"},{"url":"https://github.com/advisories/GHSA-38jp-4v3p-cc3q"}],"sources":{"cve":[{"id":"CVE-2020-24334","description":"The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.","status":"published","published":"2020-12-11T22:42:04Z","modified":"2024-08-04T15:12:09.009Z","updated_at":"2026-11-02T14:35:54.468882Z"}],"euvd":[{"id":"EUVD-2020-17068","description":"The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.","status":"published","published":"2020-12-11T22:42:04Z","modified":"2024-08-04T15:12:09Z","updated_at":"2026-11-03T03:07:19.775117Z"}],"ghsa":[{"id":"GHSA-38jp-4v3p-cc3q","title":"The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does...","description":"The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.","status":"published","published":"2022-05-24T17:36:11Z","modified":"2023-01-29T05:04:59Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:45:41.213171Z"}],"nvd":[{"id":"CVE-2020-24334","description":"The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.","status":"published","published":"2020-12-11T23:15:13.807Z","modified":"2026-06-17T03:05:23.28Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:06:27.10541Z"}],"osv":[{"id":"CVE-2020-24334","description":"The code that processes DNS responses in uIP through 1.0, as used in Contiki and Contiki-NG, does not check whether the number of responses specified in the DNS packet header corresponds to the response data available in the DNS packet, leading to an out-of-bounds read and Denial-of-Service in resolv.c.","status":"published","published":"2020-12-11T23:15:13.807Z","modified":"2026-10-24T10:30:34.990234643Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:15.879068Z"}]}}