Bug 1555163 (CVE-2018-7730)

Summary:	CVE-2018-7730 exempi: Heap-based buffer overflow in PSD_MetaHandler::CacheFileData function in XMPFiles/source/FormatSupport/PSIR_FileWriter.cpp allows for denial of service via crafted XLS file
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dakingun, jchaloup, nforro, rschiron
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	exempi 2.4.5	Doc Type:	If docs needed, set a value
Doc Text:	An integer wraparound, leading to a buffer overflow, was found in Exempi in the way it handles Adobe Photoshop Images. An attacker could exploit this to cause a denial of service via a crafted image file.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-08-06 19:18:29 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1555156, 1555169, 1572630, 1572631
Bug Blocks:	1555158

Description Sam Fowler 2018-03-14 04:42:35 UTC

Exempi through version 2.4.4 is vulnerable to a integer wraparound that can lead
to a heap-based buffer overflow in PSD_MetaHandler::CacheFileData() method in
XMPFiles/source/FormatSupport/PSIR_FileWriter.cpp. An attacker could exploit
this to cause a denial of service via crafted xls file.


Upstream Bug Report:
https://bugs.freedesktop.org/show_bug.cgi?id=105204


Upstream Patch:
https://cgit.freedesktop.org/exempi/commit/?id=6cbd34025e5fd3ba47b29b602096e456507ce83b

Comment 2 Sam Fowler 2018-03-14 05:19:46 UTC

Created exempi tracking bugs for this issue:

Affects: fedora-all [bug 1555156]

Comment 6 errata-xmlrpc 2019-08-06 12:07:18 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2048 https://access.redhat.com/errata/RHSA-2019:2048

Comment 7 Product Security DevOps Team 2019-08-06 19:18:29 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-7730