Bug 1559595 – CVE-2017-18235 exempi: assertion failure in VPXChunk class in XMPFiles/source/FormatSupport/WEBP_Support.cpp

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Bug 1559595 - (CVE-2017-18235) CVE-2017-18235 exempi: assertion failure in VPXChunk class in XMPFiles/source/FormatSupport/WEBP_Support.cpp

Summary:	CVE-2017-18235 exempi: assertion failure in VPXChunk class in XMPFiles/source...

Status:	CLOSED NOTABUG

Aliases:	CVE-2017-18235

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:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20170725,reported=2...
Keywords:	Security

Depends On:	1559578 1559603
Blocks:	1559602
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Reported:	2018-03-22 16:31 EDT by Laura Pardo
Modified:	2018-05-04 05:58 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	exempi 2.4.3
Doc Type:	If docs needed, set a value
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Environment:
Last Closed:	2018-05-04 05:57:54 EDT
Type:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Laura Pardo 2018-03-22 16:31:10 EDT

An issue was discovered in Exempi before 2.4.3. The VPXChunk class in XMPFiles/source/FormatSupport/WEBP_Support.cpp does not ensure nonzero widths and heights, which allows remote attackers to cause a denial of service (assertion failure and application exit) via a crafted .webp file.

Reference:
https://bugs.freedesktop.org/show_bug.cgi?id=101913

Patch:
https://cgit.freedesktop.org/exempi/commit/?id=9e76a7782a54a242f18d609e7ba32bf1c430a5e4

Comment 1 Laura Pardo 2018-03-22 16:56:18 EDT

Created exempi tracking bugs for this issue:

Affects: fedora-all [bug 1559578]

Comment 3 Riccardo Schirone 2018-05-04 05:58:03 EDT

Statement:

This issue did not affect the versions of Exempi as shipped with Red Hat Enterprise Linux 6 and 7 as they did not include support for Web/P images.

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