Bug 1405919 (CVE-2015-8979)

Summary:	CVE-2015-8979 dcmtk: Wrong length of ACSE structures can cause remote overflows/underflows
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	ignatenko, lemenkov, mrceresa
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2016-12-19 07:48:01 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:

Description Andrej Nemec 2016-12-19 07:47:06 UTC

At several places in the code a wrong length of ACSE data structures received over the network can cause overflows or underflows when processing those data structures. Related checks have been added at various places in order to prevent such (possible) attacks. The bug will affect all DCMTK-based server applications that accept incoming DICOM network connections.

According to the reports only <= 3.6.0 versions are affected.

References:

http://seclists.org/oss-sec/2016/q4/700
http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5384.php

Upstream patch:

https://github.com/commontk/DCMTK/commit/1b6bb76