Bug 1760468 (CVE-2018-14880)

Summary: CVE-2018-14880 tcpdump: Buffer over-read in ospf6_print_lshdr() function in print-ospf6.c
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- 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 OSPFv3 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: 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: 1791719, 1760626, 1791718    
Bug Blocks: 1760628    

Description Pedro Sampaio 2019-10-10 15:20:32 UTC
The OSPFv3 parser in tcpdump before 4.9.3 has a buffer over-read in print-ospf6.c:ospf6_print_lshdr().

Upstream patch:

https://github.com/the-tcpdump-group/tcpdump/commit/e01c9bf76740802025c9328901b55ee4a0c49ed6

References:

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

Comment 1 Pedro Sampaio 2019-10-11 00:02:58 UTC
Created tcpdump tracking bugs for this issue:

Affects: fedora-all [bug 1760626]