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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: 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:
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