{"action":"Upgrade openssl to 1.1.1j-1 or later.","affected":[{"fixed":"1.1.1j-1","introduced":"0"}],"component":"openssl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.1.1j-1"],"id":"tcs_01M5NFF4FT91ERVCTRK5P0PZT8","modified_at":"2026-10-23T18:02:52.067402020Z","published_at":"2021-02-16T17:15:13.300Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-23840","https://security-tracker.debian.org/tracker/CVE-2021-23840"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-23840#Debian:14/openssl","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-23840"}],"summary":"Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an intege"}