{"id":"CVE-2022-32206","details":"curl \u003c 7.84.0 supports \"chained\" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable \"links\" in this \"decompression chain\" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a \"malloc bomb\", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.","aliases":["CURL-CVE-2022-32206"],"modified":"2026-04-09T08:51:25.542107Z","published":"2022-07-07T13:15:08.340Z","related":["ALSA-2022:6157","ALSA-2022:6159","MGASA-2022-0250","SUSE-SU-2022:2288-1","SUSE-SU-2022:2305-1","SUSE-SU-2022:2327-1","SUSE-SU-2022:2327-2","SUSE-SU-2022:2813-1","SUSE-SU-2022:2829-1","openSUSE-SU-2024:12214-1"],"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220915-0003/"},{"type":"ADVISORY","url":"https://support.apple.com/kb/HT213488"},{"type":"ADVISORY","url":"https://www.debian.org/security/2022/dsa-5197"},{"type":"ADVISORY","url":"http://seclists.org/fulldisclosure/2022/Oct/28"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2023/02/15/3"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202212-01"},{"type":"ADVISORY","url":"http://seclists.org/fulldisclosure/2022/Oct/41"},{"type":"FIX","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf"},{"type":"EVIDENCE","url":"https://hackerone.com/reports/1570651"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"0"},{"fixed":"45ac4d019475df03562fe0ac54eb67e1d1de0ca7"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"7.84.0"}]}}],"versions":["before_ftp_statemachine","before_urldata_rename","curl-6_5","curl-6_5_1","curl-6_5_2","curl-7_10","curl-7_10_1","curl-7_10_2","curl-7_10_3","curl-7_10_4","curl-7_10_5","curl-7_10_6","curl-7_10_7","curl-7_10_8","curl-7_11_0","curl-7_11_1","curl-7_11_2","curl-7_12_0","curl-7_12_1","curl-7_12_2","curl-7_12_3","curl-7_13_0","curl-7_13_1","curl-7_13_2","curl-7_14_0","curl-7_14_1","curl-7_15_0","curl-7_15_1","curl-7_15_2","curl-7_15_3","curl-7_15_4","curl-7_15_5","curl-7_15_6-prepipeline","curl-7_16_0","curl-7_16_1","curl-7_16_2","curl-7_16_3","curl-7_16_4","curl-7_17_0","curl-7_17_0-preldapfix","curl-7_17_1","curl-7_18_0","curl-7_18_1","curl-7_18_2","curl-7_19_0","curl-7_19_1","curl-7_19_2","curl-7_19_3","curl-7_19_4","curl-7_19_5","curl-7_19_6","curl-7_19_7","curl-7_1_1","curl-7_2","curl-7_20_0","curl-7_20_1","curl-7_21_0","curl-7_21_1","curl-7_21_2","curl-7_21_3","curl-7_21_4","curl-7_21_5","curl-7_21_6","curl-7_21_7","curl-7_22_0","curl-7_23_0","curl-7_23_1","curl-7_25_0","curl-7_26_0","curl-7_27_0","curl-7_28_0","curl-7_28_1","curl-7_29_0","curl-7_3","curl-7_30_0","curl-7_31_0","curl-7_32_0","curl-7_33_0","curl-7_34_0","curl-7_35_0","curl-7_36_0","curl-7_37_0","curl-7_37_1","curl-7_38_0","curl-7_39_0","curl-7_40_0","curl-7_41_0","curl-7_42_0","curl-7_43_0","curl-7_44_0","curl-7_45_0","curl-7_46_0","curl-7_47_0","curl-7_47_1","curl-7_48_0","curl-7_49_0","curl-7_49_1","curl-7_4_1","curl-7_5","curl-7_50_0","curl-7_50_1","curl-7_50_2","curl-7_50_3","curl-7_51_0","curl-7_52_0","curl-7_52_1","curl-7_53_0","curl-7_53_1","curl-7_54_0","curl-7_54_1","curl-7_55_0","curl-7_55_1","curl-7_56_0","curl-7_56_1","curl-7_57_0","curl-7_58_0","curl-7_59_0","curl-7_5_2","curl-7_6","curl-7_6-pre4","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_6_1","curl-7_6_1-pre1","curl-7_6_1-pre2","curl-7_6_1-pre3","curl-7_7","curl-7_7-beta1","curl-7_7-beta2","curl-7_7-beta3","curl-7_7-beta5","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_7_1","curl-7_7_2","curl-7_7_3","curl-7_7_alpha2","curl-7_8","curl-7_8-pre2","curl-7_80_0","curl-7_81_0","curl-7_82_0","curl-7_83_0","curl-7_83_1","curl-7_8_1","curl-7_8_1-pre3","curl-7_9","curl-7_9_1","curl-7_9_2","curl-7_9_3","curl-7_9_3-pre1","curl-7_9_3-pre2","curl-7_9_3-pre3","curl-7_9_4","curl-7_9_5","curl-7_9_5-pre2","curl-7_9_5-pre4","curl-7_9_6","curl-7_9_7","curl-7_9_7-pre2","curl-7_9_8","curl_7_6-pre3"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-32206.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"35"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"11.0"}]},{"events":[{"introduced":"0"},{"fixed":"3.0"}]},{"events":[{"introduced":"0"},{"fixed":"3.0"}]},{"events":[{"introduced":"0"},{"fixed":"3.0"}]},{"events":[{"introduced":"0"},{"fixed":"3.0"}]},{"events":[{"introduced":"0"},{"fixed":"3.0"}]},{"events":[{"introduced":"0"},{"fixed":"3.0"}]},{"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"}]}]}}],"sche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