{"action":"Upgrade wolfssl to 5.6.6-1.2 or later.","affected":[{"fixed":"5.6.6-1.2","introduced":"0"}],"component":"wolfssl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["5.6.6-1.2"],"id":"tcs_01M5NJZXNYQNSSJBJH6WDAFDT2","modified_at":"2026-10-26T18:02:47.386225712Z","published_at":"2024-02-15T18:15:44.890Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-6937","https://security-tracker.debian.org/tracker/CVE-2023-6937"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-6937#Debian:13/wolfssl","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-6937"}],"summary":"wolfSSL prior to 5.6.6 did not check that messages in one (D)TLS record do not span key boundaries. As a result, it was possible to combine (D)TLS messages using different keys into one (D)TLS record."}