CVE-2018-18020

CVSS V2 Medium 4.3 CVSS V3 Low 3.3
Description
In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.
Overview
  • CVE ID
  • CVE-2018-18020
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-10-06T14:29:00
  • Last Modified Date
  • 2020-08-24T17:37:01
Weakness Enumerations
CWE URL
CWE-674 http://cwe.mitre.org/data/definitions/674.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:qpdf_project:qpdf:8.2.1:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • LOW
  • Base Score
  • 3.3
  • Base Severity
  • LOW
  • Exploitability Score
  • 1.8
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://github.com/qpdf/qpdf/issues/243 Exploit Issue Tracking Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-18020
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18020
History
Created Old Value New Value Data Type Notes
2022-05-10 16:30:28 Added to TrackCVE
2022-12-03 13:00:10 2018-10-06T14:29Z 2018-10-06T14:29:00 CVE Published Date updated
2022-12-03 13:00:10 2020-08-24T17:37:01 CVE Modified Date updated
2022-12-03 13:00:10 Analyzed Vulnerability Status updated