{"id":"CVE-2017-16872","details":"An issue was discovered in Teluu pjproject (pjlib and pjlib-util) in PJSIP before 2.7.1. Parsing the numeric header fields in a SIP message (like cseq, ttl, port, etc.) all had the potential to overflow, either causing unintended values to be captured or, if the values were subsequently converted back to strings, a buffer overrun. This will lead to a potential exploit using carefully crafted invalid values.","modified":"2026-05-18T05:49:54.483864155Z","published":"2017-11-17T09:29:00.387Z","database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"last_affected":"9.0"}],"vendor_product":"debian:debian_linux","source":"CPE_FIELD"}]},"references":[{"type":"ADVISORY","url":"https://trac.pjsip.org/repos/milestone/release-2.7.1"},{"type":"ADVISORY","url":"https://trac.pjsip.org/repos/ticket/2056"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4170"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pjsip/pjproject","events":[{"introduced":"0"},{"fixed":"ddf5bf08c48b9d8ef898f25c932d0652e9d36a52"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.7.1"}],"cpe":"cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*","source":"CPE_FIELD"}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-16872.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}