{"action":"Upgrade discount to 2.2.4-1 or later.","affected":[{"fixed":"2.2.4-1","introduced":"0"}],"component":"discount","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.2.4-1"],"id":"tcs_01M5NCYCX54HWAS73W2JA2176S","modified_at":"2026-10-23T18:03:47.477777886Z","published_at":"2018-05-26T21:29:00.300Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-11503","https://security-tracker.debian.org/tracker/CVE-2018-11503"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-11503#Debian:14/discount","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-11503"}],"summary":"The isfootnote function in markdown.c in libmarkdown.a in DISCOUNT 2.2.3a allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted file, as demonstrated by mkd2"}