CVE-2017-18186

Publication date 13 February 2018

Last updated 25 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

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

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qpdf	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	16.04 LTS xenial	Fixed 8.0.2-3~16.04.1
	14.04 LTS trusty	Fixed 8.0.2-3~14.04.1

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
qpdf	Upstream: 85f05cc

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.5 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	5.5 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3638-1
QPDF vulnerabilities
7 May 2018

Other references

https://www.cve.org/CVERecord?id=CVE-2017-18186

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