{"action":"Upgrade curl to 7.56.1-1 or later.","affected":[{"fixed":"7.56.1-1","introduced":"0"}],"component":"curl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["7.56.1-1"],"id":"tcs_01M5NBWP3ZRY0TJDRSMJEYF142","modified_at":"2026-09-01T20:02:39.971578162Z","published_at":"2017-10-31T21:29:00.203Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-1000257","https://security-tracker.debian.org/tracker/CVE-2017-1000257"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-1000257#Debian:13/curl","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-1000257"}],"summary":"An IMAP FETCH response line indicates the size of the returned data, in number of bytes. When that response says the data is zero bytes, libcurl would pass on that (non-existing) data with a pointer a"}