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Bug 1085294 - (CVE-2018-7731) VUL-1: CVE-2018-7731: exempi: NULL pointer dereference in XMPFiles/source/FormatSupport/WEBP_Support.cpp:WEBP::VP8XChunk allows for denial of service via crafted file
(CVE-2018-7731)
VUL-1: CVE-2018-7731: exempi: NULL pointer dereference in XMPFiles/source/For...
Status: RESOLVED INVALID
Classification: Novell Products
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents
unspecified
Other Other
: P5 - None : Minor
: ---
Assigned To: E-mail List
Security Team bot
https://smash.suse.de/issue/201344/
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Depends on:
Blocks:
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Reported: 2018-03-14 13:25 UTC by Karol Babioch
Modified: 2018-04-05 10:50 UTC (History)
1 user (show)

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Found By: Security Response Team
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Description Karol Babioch 2018-03-14 13:25:50 UTC 
rh#1555164

An issue was discovered in Exempi through 2.4.4.
XMPFiles/source/FormatSupport/WEBP_Support.cpp does not check whether a
bitstream has a NULL value, leading to a NULL pointer dereference in the
WEBP::VP8XChunk class.

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1555164
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-7731
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-7731.html
http://www.cvedetails.com/cve/CVE-2018-7731/
https://bugs.freedesktop.org/show_bug.cgi?id=105247
https://cgit.freedesktop.org/exempi/commit/?id=aabedb5e749dd59112a3fe1e8e08f2d934f56666
Comment 1 Karol Babioch 2018-03-14 13:54:41 UTC 
WebP handler was introduced with 664d0a11 (2.4.0), so does not affect us.
Comment 2 Karol Babioch 2018-03-14 14:28:12 UTC 
Fixed in Factory: https://build.opensuse.org/request/show/586877
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