{"id":"CVE-2020-18899","details":"An uncontrolled memory allocation in DataBufdata(subBox.length-sizeof(box)) function of Exiv2 0.27 allows attackers to cause a denial of service (DOS) via a crafted input.","aliases":["PYSEC-2021-879"],"modified":"2026-05-30T13:46:22.063975Z","published":"2021-08-19T22:15:07.333Z","related":["SUSE-SU-2022:3598-1"],"references":[{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202312-06"},{"type":"REPORT","url":"https://github.com/Exiv2/exiv2/issues/742"},{"type":"ARTICLE","url":"https://cwe.mitre.org/data/definitions/789.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/exiv2/exiv2","events":[{"introduced":"0"},{"last_affected":"62826516778b96da5ddb38f5ec1499dc76994a6f"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:exiv2:exiv2:0.27:-:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"0.27-NA"}]}}],"versions":["0.27-RC2","v0.27.0","0.27","0.27-RC3","v0.27-RC1","v0.26","v0.25","v0.24","v0.23.1","v0.23","v0.22","v0.21.1","v0.21","v0.20","v0.19","v0.18.2","v0.18.1","v0.18","v0.18-pre2","v0.18-pre1","v0.17.1","v0.17","v0.16","v0.16-pre1","v0.15","v0.14","v0.13","v0.12","v0.11","v0.10","v0.9.1","v0.9","v0.8","v0.7","v0.6.2","v0.6.1","v0.6","v0.5","v0.4","v0.3"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-18899.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}