{"id":"CVE-2018-16890","details":"libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.","aliases":["CURL-CVE-2018-16890"],"modified":"2026-04-10T04:06:52.219469Z","published":"2019-02-06T20:29:00.243Z","related":["SUSE-SU-2019:0248-1","SUSE-SU-2019:0249-1","SUSE-SU-2019:0249-2","SUSE-SU-2019:0339-1","openSUSE-SU-2019:0174-1","openSUSE-SU-2024:10582-1"],"references":[{"type":"WEB","url":"https://support.f5.com/csp/article/K03314397?utm_source=f5support&amp%3Butm_medium=RSS"},{"type":"WEB","url":"https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3E"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3882-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4386"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/106947"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3701"},{"type":"ADVISORY","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf"},{"type":"FIX","url":"https://security.netapp.com/advisory/ntap-20190315-0001/"},{"type":"FIX","url":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"},{"type":"FIX","url":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16890"},{"type":"FIX","url":"https://curl.haxx.se/docs/CVE-2018-16890.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/curl/curl","events":[{"introduced":"4f041c9d6e61829310eb0715d8edb2a232478123"},{"fixed":"f3294d9d86e6a7915a967efff2842089b8b0d071"},{"introduced":"0"},{"last_affected":"47ccaa4218c408e70671a2fa9caaa3caf8c1a877"}],"database_specific":{"versions":[{"introduced":"7.36.0"},{"fixed":"7.64.0"},{"introduced":"0"},{"last_affected":"8.0"}]}}],"versions":["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_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_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","curl-7_88_0","curl-7_88_1","curl-8_0_0"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.10"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"2.0"}]},{"events":[{"introduced":"0"},{"last_affected":"3.4"}]},{"events":[{"introduced":"0"},{"last_affected":"4.0"}]},{"events":[{"introduced":"0"},{"last_affected":"12.2.1.3.0"}]},{"events":[{"introduced":"0"},{"last_affected":"5.4"}]},{"events":[{"introduced":"13.1.0"},{"last_affected":"13.1.3"}]},{"events":[{"introduced":"14.0.0"},{"last_affected":"14.1.2"}]},{"events":[{"introduced":"15.0.0"},{"last_affected":"15.0.1"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16890.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}