Bug 1760507 (CVE-2018-14464)

Summary: CVE-2018-14464 tcpdump: Buffer over-read in lmp_print_data_link_subobjs() function in print-lmp.c
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: luhliari, mlichvar, mruprich, msehnout, msekleta, thozza
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: tcpdump 4.9.3 Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds read vulnerability was discovered in tcpdump while printing LMP packets captured in a pcap file or coming from the network. A remote attacker may abuse this flaw by sending specially crafted packets that, when printed, would trigger the flaw and crash the application.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-11-04 02:22:20 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: 1760626, 1791722, 1791723    
Bug Blocks: 1760628    

Description Pedro Sampaio 2019-10-10 17:20:11 UTC
The LMP parser in tcpdump before 4.9.3 has a buffer over-read in print-lmp.c:lmp_print_data_link_subobjs().

Upstream patch:

https://github.com/the-tcpdump-group/tcpdump/commit/d97e94223720684c6aa740ff219e0d19426c2220

References:

https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES

Comment 1 Pedro Sampaio 2019-10-11 00:04:08 UTC
Created tcpdump tracking bugs for this issue:

Affects: fedora-all [bug 1760626]

Comment 3 Product Security DevOps Team 2020-11-04 02:22:20 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-2018-14464

Comment 4 errata-xmlrpc 2020-11-04 03:41:08 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4760 https://access.redhat.com/errata/RHSA-2020:4760