{"action":"Upgrade klibc to 2.0.9-r0 or later.","affected":[{"fixed":"2.0.9-r0","introduced":"0"}],"component":"klibc","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.24","exploited":false,"fixed_versions":["2.0.9-r0"],"id":"tcs_01M6GVKJB4W8ZRBHMNTAHBJCJF","modified_at":"2026-11-03T06:32:40.469146411Z","published_at":"2021-04-30T06:15:07.190Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-31870","https://security.alpinelinux.org/vuln/CVE-2021-31870"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-31870#Alpine:v3.24/klibc","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-31870"}],"summary":"An issue was discovered in klibc before 2.0.9. Multiplication in the calloc() function may result in an integer overflow and a subsequent heap buffer overflow."}