{"id":"CVE-2024-6874","details":"libcurl's URL API function\n[curl_url_get()](https://curl.se/libcurl/c/curl_url_get.html) offers punycode\nconversions, to and from IDN. Asking to convert a name that is exactly 256\nbytes, libcurl ends up reading outside of a stack based buffer when built to\nuse the *macidn* IDN backend. The conversion function then fills up the\nprovided buffer exactly - but does not null terminate the string.\n\nThis flaw can lead to stack contents accidently getting returned as part of\nthe converted string.","aliases":["CURL-CVE-2024-6874"],"modified":"2026-03-23T05:03:11.692543080Z","published":"2024-07-24T08:15:03.413Z","related":["SUSE-SU-2025:03198-1","openSUSE-SU-2024:14225-1"],"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2024/07/24/2"},{"type":"ADVISORY","url":"https://curl.se/docs/CVE-2024-6874.html"},{"type":"ADVISORY","url":"https://curl.se/docs/CVE-2024-6874.json"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240822-0004/"},{"type":"REPORT","url":"https://hackerone.com/reports/2604391"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"0"},{"last_affected":"fd567d4f06857f4fc8e2f64ea727b1318f76ad33"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"8.8.0"}]}}],"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_24_0","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_84_0","curl-7_85_0","curl-7_86_0","curl-7_87_0","curl-7_88_0","curl-7_88_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-8_0_0","curl-8_0_1","curl-8_1_0","curl-8_1_1","curl-8_1_2","curl-8_2_0","curl-8_2_1","curl-8_3_0","curl-8_4_0","curl-8_5_0","curl-8_6_0","curl-8_7_0","curl-8_7_1","curl-8_8_0","curl_7_6-pre3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-6874.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}