{"id":"CVE-2023-23916","details":"An allocation of resources without limits or throttling vulnerability exists in curl \u003cv7.88.0 based on the \"chained\" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable \"links\" in this \"decompression chain\" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a \"malloc bomb\", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.","aliases":["CURL-CVE-2023-23916"],"modified":"2026-04-02T08:49:12.375304Z","published":"2023-02-23T20:15:13.777Z","related":["ALSA-2023:1140","ALSA-2023:1701","MGASA-2023-0054","SUSE-SU-2023:0425-1","SUSE-SU-2023:0429-1","SUSE-SU-2023:1711-1","SUSE-SU-2023:2226-1","SUSE-SU-2023:2228-1","openSUSE-SU-2024:12735-1"],"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230309-0006/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2023/dsa-5365"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/02/msg00035.html"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BQKE6TXYDHOTFHLTBZ5X73GTKI7II5KO/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202310-12"},{"type":"REPORT","url":"https://hackerone.com/reports/1826048"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"62c07b5743490ce373910f469abc8cdc759bec2b"},{"fixed":"3027611ca6d4cc5510d2d0fccc3e5a074e09a2fb"}],"database_specific":{"versions":[{"introduced":"7.57.0"},{"fixed":"7.88.0"}]}}],"versions":["curl-7_57_0","curl-7_58_0","curl-7_59_0","curl-7_60_0","curl-7_61_0","curl-7_61_1","curl-7_62_0","curl-7_63_0","curl-7_64_0","curl-7_64_1","curl-7_65_0","curl-7_65_1","curl-7_65_2","curl-7_65_3","curl-7_66_0","curl-7_67_0","curl-7_68_0","curl-7_69_0","curl-7_69_1","curl-7_70_0","curl-7_71_0","curl-7_71_1","curl-7_72_0","curl-7_73_0","curl-7_74_0","curl-7_75_0","curl-7_76_0","curl-7_76_1","curl-7_77_0","curl-7_78_0","curl-7_79_0","curl-7_79_1","curl-7_80_0","curl-7_81_0","curl-7_82_0","curl-7_83_0","curl-7_83_1","curl-7_84_0","curl-7_85_0","curl-7_86_0","curl-7_87_0","tiny-curl-7_72_0"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"36"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"11.0"}]},{"events":[{"introduced":"8.2.0"},{"fixed":"8.2.12"}]},{"events":[{"introduced":"9.0.0"},{"fixed":"9.0.6"}]},{"events":[{"introduced":"0"},{"last_affected":"9.1.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-23916.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"}]}