Bug 1475517 – CVE-2017-11627 qpdf: Infinite loop in PointerHolder function in PointerHolder.hh

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Bug 1475517 - (CVE-2017-11627) CVE-2017-11627 qpdf: Infinite loop in PointerHolder function in PointerHolder.hh

Summary:	CVE-2017-11627 qpdf: Infinite loop in PointerHolder function in PointerHolder.hh

Status:	NEW

Aliases:	CVE-2017-11627

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=low,public=20170725,reported=2...
Keywords:	Security

Depends On:	1475519 1475518
Blocks:
	Show dependency tree / graph

Reported:	2017-07-26 16:03 EDT by Pedro Sampaio
Modified:	2017-08-01 08:53 EDT (History)
CC List:	3 users (show)

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Description Pedro Sampaio 2017-07-26 16:03:20 EDT

A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0,
which allows attackers to cause a denial of service via a crafted file,
related to the PointerHolder function in PointerHolder.hh, aka an
"infinite loop".
Upstream bug:

https://github.com/qpdf/qpdf/issues/118

Upstream patch:

https://github.com/jberkenbilt/qpdf/commit/2f56805a397b4d264bcfdfc248765990084c2933
https://github.com/jberkenbilt/qpdf/commit/97c9344c4b878ddc4723486640688d2d3d38ad32
https://github.com/qpdf/qpdf/commit/ac3c81a8edcb44e2669485630d6718c96a6ad6e9

References:

http://somevulnsofadlab.blogspot.com.br/2017/07/qpdfan-infinite-loop-in-libqpdf_21.html

Comment 1 Pedro Sampaio 2017-07-26 16:03:47 EDT

Created qpdf tracking bugs for this issue:

Affects: epel-6 [bug 1475519]
Affects: fedora-all [bug 1475518]

Comment 2 Zdenek Dohnal 2017-08-01 08:53:18 EDT

Upstream patches from comment#0 add tests for this issue.

Actual upstream patches:

https://github.com/qpdf/qpdf/commit/701b518d5c56a1449825a3a37a716c58e05e1c3e
https://github.com/qpdf/qpdf/commit/afe0242b263a9e1a8d51dd81e42ab6de2e5127eb
https://github.com/qpdf/qpdf/commit/315092dd98d5230ef0efa18b294d464d0e9f79d0
https://github.com/qpdf/qpdf/commit/603f222365252f1a1e20303b3dbe52466be3053b

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