{"action":"Upgrade libtomcrypt to 1.18.2-1 or later.","affected":[{"fixed":"1.18.2-1","introduced":"0"}],"component":"libtomcrypt","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.18.2-1"],"id":"tcs_01M5ND04FH124GFNNBXPJ8W5NE","modified_at":"2026-10-23T18:03:53.778450971Z","published_at":"2018-06-15T02:29:00.487Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-12437","https://security-tracker.debian.org/tracker/CVE-2018-12437"],"severity":{"label":"medium","score":4.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-12437#Debian:13/libtomcrypt","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-12437"}],"summary":"LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to e"}