Bug 1555164 (CVE-2018-7731) - CVE-2018-7731 exempi: NULL pointer dereference in XMPFiles/source/FormatSupport/WEBP_Support.cpp:WEBP::VP8XChunk allows for denial of service via crafted file
Summary: CVE-2018-7731 exempi: NULL pointer dereference in XMPFiles/source/FormatSuppo...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-7731
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: 1555156 1555169
Blocks: 1555158
TreeView+ depends on / blocked
 
Reported: 2018-03-14 04:49 UTC by Sam Fowler
Modified: 2021-02-17 00:38 UTC (History)
3 users (show)

Fixed In Version: exempi 2.4.5
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Clone Of:
Environment:
Last Closed: 2018-04-27 13:10:19 UTC
Embargoed:

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Description Sam Fowler 2018-03-14 04:49:57 UTC 
Exempi through version 2.4.4 is vulnerable to a NULL pointer dereference in the XMPFiles/source/FormatSupport/WEBP_Support.cpp:WEBP::VP8XChunk class. An attacker could exploit this to cause a denial of service via crafted file.


Upstream Bug Report:

https://bugs.freedesktop.org/show_bug.cgi?id=105247


Upstream Patch:

https://cgit.freedesktop.org/exempi/commit/?id=aabedb5e749dd59112a3fe1e8e08f2d934f56666
Comment 2 Sam Fowler 2018-03-14 05:18:39 UTC 
Created exempi tracking bugs for this issue:

Affects: fedora-all [bug 1555156]
Comment 4 Riccardo Schirone 2018-04-27 13:10:28 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 WebP file format.
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