{"action":"Upgrade picolibc to 1.5-1 or later.","affected":[{"fixed":"1.5-1","introduced":"0"}],"component":"picolibc","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.5-1"],"id":"tcs_01M5NFRAP3NH0MEFF28WR6GPF2","modified_at":"2026-10-23T18:03:27.667852985Z","published_at":"2021-03-05T21:15:13.437Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3420","https://security-tracker.debian.org/tracker/CVE-2021-3420"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3420#Debian:12/picolibc","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3420"}],"summary":"A flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory allocation functions mEMALIGn, pvALLOc, nano_memalign, nano_valloc, nano_pvalloc could case an integer"}