{"id":"CLEANSTART-2024-MH50676","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 int...","details":"Security vulnerability affects the openssl1.1-compat package. 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 integer on the platform.","modified":"2026-10-31T16:01:00.344353784Z","published":"2026-10-31T14:15:30.128045Z","upstream":["CVE-2021-23840"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-MH50676.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2021-23840"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23840"}],"affected":[{"package":{"name":"openssl1.1-compat","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/openssl1.1-compat"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1j-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-MH50676.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}