{"id":"CVE-2020-24339","details":"An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The DNS domain name record decompression functionality in pico_dns_decompress_name() in pico_dns_common.c does not validate the compression pointer offset values with respect to the actual data present in a DNS response packet, causing out-of-bounds reads that lead to Denial-of-Service.","modified":"2026-07-08T19:02:31.968049Z","published":"2020-12-11T23:15:14.043Z","references":[{"type":"ADVISORY","url":"https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01"},{"type":"ADVISORY","url":"https://www.kb.cert.org/vuls/id/815128"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tass-belgium/picotcp","events":[{"introduced":"0"},{"last_affected":"13c00a067190f5ec62340ed932a2bb833c366d63"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.7.0"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*"}}],"versions":["v1.7.0","v1.6.2","v1.6.1","v1.6.0","v1.5.1","v1.5.0","v1.3.0","V1.2.4","v1.2.2","v1.2.1","v1.2","sprint8","sprint7","V1.0","sprint6","sprint5","sprint4","sprint3","sprint2","sprint1","sprint0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24339.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/virtualsquare/picotcp","events":[{"introduced":"0"},{"last_affected":"13c00a067190f5ec62340ed932a2bb833c366d63"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:altran:picotcp-ng:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"1.7.0"}]}}],"versions":["v1.7.0","v1.6.2","v1.6.1","v1.6.0","v1.5.1","v1.5.0","v1.3.0","V1.2.4","v1.2.2","v1.2.1","v1.2","sprint8","sprint7","V1.0","sprint6","sprint5","sprint4","sprint3","sprint2","sprint1","sprint0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24339.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}