CVE-2017-12595

Publication date 27 August 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The tokenizer in QPDF 6.0.0 and 7.0.b1 is recursive for arrays and dictionaries, which allows remote attackers to cause a denial of service (stack consumption and segmentation fault) or possibly have unspecified other impact via a PDF document with a deep data structure, as demonstrated by a crash in QPDFObjectHandle::parseInternal in libqpdf/QPDFObjectHandle.cc.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qpdf	18.04 LTS bionic	Not affected
	17.10 artful	Not affected
	17.04 zesty	Ignored end of life
	16.04 LTS xenial	Fixed 8.0.2-3~16.04.1
	14.04 LTS trusty	Fixed 8.0.2-3~14.04.1

Notes

mdeslaur

this patch breaks ABI

Patch details

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

Package	Patch details
qpdf	Upstream: ad527a6 Upstream: 728dc9e

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H