Bug 1655933 (CVE-2018-19623)

Summary:	CVE-2018-19623 wireshark: Heap buffer overflow in packet-lbmpdm.c:dissect_segment_ofstable() allows denial of service or possibly arbitrary code execution
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	denis, huzaifas, lemenkov, mruprich, msehnout, phatina, rvokal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	wireshark 2.6.5, wireshark 2.4.11	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-07-12 13:06:17 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:	1655944, 1656342
Bug Blocks:	1655948

Description Andrej Nemec 2018-12-04 09:47:27 UTC

In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.

Upstream issue:

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15132

Upstream patch:

https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=9c8645ec7b28e4d7193962ecd2a418613bf6a84f

External References:

https://www.wireshark.org/security/wnpa-sec-2018-53.html

Comment 1 Andrej Nemec 2018-12-04 10:01:33 UTC

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1655944]

Comment 2 Adam Mariš 2018-12-05 09:40:41 UTC

This issue affects wireshark since version 1.11.3 where dissector for Latency Busters Messaging was introduced.

Comment 4 Adam Mariš 2018-12-05 09:45:16 UTC

Statement:

This issue did not affect the versions of wireshark as shipped with Red Hat Enterprise Linux 5, 6 and 7 as they did not include LBMPDM dissector where the vulnerability occurred.

Comment 6 Product Security DevOps Team 2019-07-12 13:06:17 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-2018-19623