Bug 1201797 (CVE-2015-2154)

Summary:	CVE-2015-2154 tcpdump: ethernet printer osi_print_cksum() missing sanity checks out-of-bounds read
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	athmanem, carnil, msekleta, sardella, thozza
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	tcpdump 4.7.2	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-06-01 19:23:03 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:	1201799
Bug Blocks:	1201800, 1415638

Description Martin Prpič 2015-03-13 14:15:48 UTC

A flaw was found in tcpdump's ethernet printer. A remote attacker could use this flaw to cause tcpdump to crash, resulting in a denial of service.

Upstream patch:

http://www.ca.tcpdump.org/cve/0002-test-case-files-for-CVE-2015-2153-2154-2155.patch

Comment 1 Martin Prpič 2015-03-13 14:17:25 UTC

Created tcpdump tracking bugs for this issue:

Affects: fedora-all [bug 1201799]

Comment 2 Stefan Cornelius 2015-03-18 18:31:26 UTC

This is caused by missing sanity checks in the osi_print_cksum() function in print-isoclns.c.

The function may call the create_osi_cksum() function in checksum.c with invalid data. Fortunately, this seems to be exploitable for an application crash due to an out-of-bounds read only.

Comment 4 Fedora Update System 2015-03-30 07:01:03 UTC

tcpdump-4.7.3-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2015-03-31 21:44:23 UTC

tcpdump-4.7.3-1.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2015-04-18 09:48:06 UTC

tcpdump-4.5.1-4.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 errata-xmlrpc 2017-08-01 12:14:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1871 https://access.redhat.com/errata/RHSA-2017:1871