{
  "threat_severity" : "Low",
  "public_date" : "2018-08-12T00:00:00Z",
  "bugzilla" : {
    "description" : "libtasn1: Infinite loop in _asn1_expand_object_id(ptree) leads to memory exhaustion",
    "id" : "1621972",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1621972"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.0",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
    "status" : "draft"
  },
  "cwe" : "CWE-20->CWE-400",
  "details" : [ "GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.", "A vulnerability was found in GNU Libtasn1, where a resource management issue can lead to a denial of service, here an attacker could exploit this flaw by persuading a victim to parse a specially crafted file, exhausting all available CPU resources." ],
  "statement" : "This vulnerability is rated as low severity because it causes a denial of service by exhausting CPU resources, it impacts availability, it does not compromise system security or integrity.\nThis flaw is in the asn1Parser binary included in libtasn1-tools RPM. The dynamic library libtasn1 and libtasn1-devel RPMs are not affected.",
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Will not fix",
    "package_name" : "libtasn1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Will not fix",
    "package_name" : "libtasn1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Will not fix",
    "package_name" : "libtasn1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Fix deferred",
    "package_name" : "mingw-libtasn1",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Satellite 6",
    "fix_state" : "Will not fix",
    "package_name" : "libtasn1",
    "cpe" : "cpe:/a:redhat:satellite:6"
  }, {
    "product_name" : "Red Hat Virtualization 4",
    "fix_state" : "Will not fix",
    "package_name" : "libtasn1",
    "cpe" : "cpe:/o:redhat:rhev_hypervisor:4"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2018-1000654\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-1000654" ],
  "name" : "CVE-2018-1000654",
  "csaw" : false
}