{"id":"CVE-2023-27537","details":"A double free vulnerability exists in libcurl \u003c8.0.0 when sharing HSTS data between separate \"handles\". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread locks, two threads sharing the same HSTS data could end up doing a double-free or use-after-free.","aliases":["CURL-CVE-2023-27537"],"modified":"2026-05-18T05:57:03.772572546Z","published":"2023-03-30T00:00:00Z","related":["openSUSE-SU-2024:12812-1"],"database_specific":{"cwe_ids":["CWE-415"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27537.json","unresolved_ranges":[{"extracted_events":[{"last_affected":"Fixed in 8.0.0"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"hackerone"},"references":[{"type":"WEB","url":"https://hackerone.com/reports/1897203"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27537.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27537"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202310-12"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230420-0010/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"0"},{"last_affected":"3027611ca6d4cc5510d2d0fccc3e5a074e09a2fb"},{"last_affected":"046209e561b7e9b5aab1aef7daebf29ee6e6e8c7"}],"database_specific":{"source":"CPE_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"7.88.0"},{"last_affected":"7.88.1"}],"cpe":["cpe:2.3:a:haxx:libcurl:7.88.0:*:*:*:*:*:*:*","cpe:2.3:a:haxx:libcurl:7.88.1:*:*:*:*:*:*:*"]}}],"versions":["curl-7_88_1","curl-7_88_0","curl-7_87_0","curl-7_86_0","curl-7_85_0","curl-7_84_0","curl-7_83_1","curl-7_83_0","curl-7_82_0","curl-7_81_0","curl-7_80_0","curl-7_79_1","curl-7_79_0","curl-7_78_0","curl-7_77_0","curl-7_76_1","curl-7_76_0","curl-7_75_0","curl-7_74_0","curl-7_73_0","curl-7_72_0","curl-7_71_1","curl-7_71_0","curl-7_70_0","curl-7_69_1","curl-7_69_0","curl-7_68_0","curl-7_67_0","curl-7_66_0","curl-7_65_3","curl-7_65_2","curl-7_65_1","curl-7_65_0","curl-7_64_1","curl-7_64_0","curl-7_63_0","curl-7_62_0","curl-7_61_1","curl-7_61_0","curl-7_60_0","curl-7_59_0","curl-7_58_0","curl-7_57_0","curl-7_56_1","curl-7_56_0","curl-7_55_1","curl-7_55_0","curl-7_54_1","curl-7_54_0","curl-7_53_1","curl-7_53_0","curl-7_52_1","curl-7_52_0","curl-7_51_0","curl-7_50_3","curl-7_50_2","curl-7_50_1","curl-7_50_0","curl-7_49_1","curl-7_49_0","curl-7_48_0","curl-7_47_1","curl-7_47_0","curl-7_46_0","curl-7_45_0","curl-7_44_0","curl-7_43_0","curl-7_42_0","curl-7_41_0","curl-7_40_0","curl-7_39_0","curl-7_38_0","curl-7_37_1","curl-7_37_0","curl-7_36_0","curl-7_35_0","curl-7_34_0","curl-7_33_0","curl-7_32_0","curl-7_31_0","curl-7_30_0","curl-7_29_0","curl-7_28_1","curl-7_28_0","curl-7_27_0","curl-7_26_0","curl-7_25_0","curl-7_23_1","curl-7_23_0","curl-7_22_0","curl-7_21_7","curl-7_21_6","curl-7_21_5","curl-7_21_4","curl-7_21_3","curl-7_21_2","curl-7_21_1","curl-7_21_0","curl-7_20_1","curl-7_20_0","curl-7_19_7","curl-7_19_6","curl-7_19_5","curl-7_19_4","curl-7_19_3","curl-7_19_2","curl-7_19_1","curl-7_19_0","curl-7_18_2","curl-7_18_1","curl-7_18_0","curl-7_17_1","curl-7_17_0","curl-7_17_0-preldapfix","curl-7_16_4","curl-7_16_3","curl-7_16_2","curl-7_16_1","curl-7_16_0","curl-7_15_6-prepipeline","curl-7_15_5","curl-7_15_4","curl-7_15_3","curl-7_15_2","curl-7_15_1","curl-7_15_0","curl-7_14_1","curl-7_14_0","curl-7_13_2","curl-7_13_1","before_ftp_statemachine","curl-7_13_0","curl-7_12_3","curl-7_12_2","curl-7_12_1","curl-7_12_0","curl-7_11_2","curl-7_11_1","curl-7_11_0","curl-7_10_8","curl-7_10_7","curl-7_10_6","curl-7_10_5","curl-7_10_4","curl-7_10_3","curl-7_10_2","curl-7_10_1","curl-7_10","curl-7_9_8","curl-7_9_7","curl-7_9_7-pre2","curl-7_9_6","curl-7_9_5","curl-7_9_5-pre4","curl-7_9_5-pre2","curl-7_9_4","curl-7_9_3","curl-7_9_3-pre3","curl-7_9_3-pre2","curl-7_9_3-pre1","curl-7_9_2","curl-7_9_1","curl-7_9","before_urldata_rename","curl-7_8_1","curl-7_8_1-pre3","curl-7_8","curl-7_8-pre2","curl-7_7_3","curl-7_7_2","curl-7_7_1","curl-7_7","curl-7_7-beta5","curl-7_7-beta3","curl-7_7-beta2","curl-7_7-beta1","curl-7_7_alpha2","curl-7_6_1","curl-7_6_1-pre3","curl-7_6_1-pre2","curl-7_6_1-pre1","curl-7_6","curl-7_6-pre4","curl_7_6-pre3","curl-7_5_2","curl-7_5","curl-7_4_1","curl-7_3","curl-7_2","curl-7_1_1","curl-6_5_2","curl-6_5_1","curl-6_5"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-27537.json"}}],"schema_version":"1.7.5"}