Home/CVE/An issue was discovered in QPDF before 7.0.0. There is an infinite loop due to looping xref tables in QPDF.cc.
CVE

CVE-2017-18186

An issue was discovered in QPDF before 7.0.0. There is an infinite loop due to looping xref tables in QPDF.cc.

An issue was discovered in QPDF before 7.0.0. There is an infinite loop due to looping xref tables in QPDF.cc.

MEDIUM · CVSS 5.5 EPSS 0.00323
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
▤

Affected Products & Versions

1
qpdf project qpdf< 7.0.0
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Feb 2018 · 07:29 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
usnUSN-3638-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/qpdf/qpdf/commit/85f05cc57ffa0a863d9d9b23e73acea9410b2937Third Party Advisory
https://github.com/qpdf/qpdf/issues/149Third Party Advisory
https://usn.ubuntu.com/3638-1/
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