Bug 1655935 (CVE-2018-19625)

Summary:	CVE-2018-19625 wireshark: Heap-based buffer over-read in the dissection engine
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
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:	An out of bounds heap read vulnerability in the dissection engine could allow Wireshark to crash when parsing a specially crafted pcap file. A remote attacker could cause a denial of service to Wireshark by injecting malicious packets into the network that are automatically processed.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-06-29 20:53:17 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, 1657634, 1660435
Bug Blocks:	1655949

Description Andrej Nemec 2018-12-04 09:51:02 UTC

In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the dissection engine could crash. This was addressed in epan/tvbuff_composite.c by preventing a heap-based buffer over-read.

Upstream issue:

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14466

Upstream patch:

https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=dc4d209f39132a4ae05675a11609176ae9705cfc

External References:

https://www.wireshark.org/security/wnpa-sec-2018-51.html

Comment 1 Andrej Nemec 2018-12-04 10:01:23 UTC

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1655944]

Comment 4 Adam Mariš 2018-12-18 10:26:01 UTC

Statement:

This issue affects the versions of wireshark as shipped with Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Enterprise Linux 5 is now in Extended Life Phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.