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...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-18235
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1559578 1559603
Blocks: 1559602
TreeView+ depends on / blocked
 
Reported: 2018-03-22 20:31 UTC by Laura Pardo
Modified: 2021-02-17 00:36 UTC (History)
3 users (show)

Fixed In Version: exempi 2.4.3
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Clone Of:
Environment:
Last Closed: 2018-05-04 09:57:54 UTC
Embargoed:

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Description Laura Pardo 2018-03-22 20:31:10 UTC 
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 20:56:18 UTC 
Created exempi tracking bugs for this issue:

Affects: fedora-all [bug 1559578]
Comment 3 Riccardo Schirone 2018-05-04 09:58:03 UTC 
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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