{
  "threat_severity" : "Moderate",
  "public_date" : "2019-02-06T00:00:00Z",
  "bugzilla" : {
    "description" : "curl: NTLM type-2 heap out-of-bounds buffer read",
    "id" : "1670252",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1670252"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.3",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-190",
  "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.", "An out-of-bounds read flaw was found in the way curl handled NTLMv2 type-2 headers. When connecting to a remote malicious server which uses NTLM authentication, the flaw could cause curl to crash." ],
  "statement" : "The versions of curl package shipped with Red Hat Enterprise Linux 5, 6, and 7 do not support NTLMv2 type-2 headers, hence they are not affected by this flaw.",
  "acknowledgement" : "Red Hat would like to thank Daniel Stenberg (the Curl project) for reporting this issue. Upstream acknowledges Wenxiang Qian (Tencent Blade Team) as the original reporter.",
  "affected_release" : [ {
    "product_name" : "JBoss Core Services Apache HTTP Server 2.4.29 SP2",
    "release_date" : "2019-06-18T00:00:00Z",
    "advisory" : "RHSA-2019:1543",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2019-11-05T00:00:00Z",
    "advisory" : "RHSA-2019:3701",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "curl-0:7.61.1-11.el8"
  } ],
  "package_state" : [ {
    "product_name" : ".NET Core 1.0 on Red Hat Enterprise Linux",
    "fix_state" : "Out of support scope",
    "package_name" : "rh-dotnetcore10-curl",
    "cpe" : "cpe:/a:redhat:rhel_dotnet:1.0"
  }, {
    "product_name" : ".NET Core 1.1 on Red Hat Enterprise Linux",
    "fix_state" : "Out of support scope",
    "package_name" : "rh-dotnetcore11-curl",
    "cpe" : "cpe:/a:redhat:rhel_dotnet:1.1"
  }, {
    "product_name" : ".NET Core 2.1 on Red Hat Enterprise Linux",
    "fix_state" : "Will not fix",
    "package_name" : "rh-dotnet21-curl",
    "cpe" : "cpe:/a:redhat:rhel_dotnet:2.1"
  }, {
    "product_name" : ".NET Core 2.2 on Red Hat Enterprise Linux",
    "fix_state" : "Out of support scope",
    "package_name" : "rh-dotnet22-curl",
    "cpe" : "cpe:/a:redhat:rhel_dotnet:2.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "curl",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat JBoss Core Services",
    "fix_state" : "Affected",
    "package_name" : "jbcs-httpd24-curl",
    "cpe" : "cpe:/a:redhat:jboss_core_services:1"
  }, {
    "product_name" : "Red Hat JBoss Web Server 5",
    "fix_state" : "Not affected",
    "package_name" : "curl",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5"
  }, {
    "product_name" : "Red Hat Software Collections",
    "fix_state" : "Will not fix",
    "package_name" : "httpd24-curl",
    "cpe" : "cpe:/a:redhat:rhel_software_collections:3"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2018-16890\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-16890\nhttps://curl.haxx.se/docs/CVE-2018-16890.html" ],
  "name" : "CVE-2018-16890",
  "mitigation" : {
    "value" : "Turn off NTLM authentication.",
    "lang" : "en:us"
  },
  "csaw" : false
}