Bug 1760455 (CVE-2018-14462)

Summary: CVE-2018-14462 tcpdump: Buffer over-read in icmp_print() function in print-icmp.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 flaw was discovered in tcpdump while printing ICMP 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. System availability is the highest threat from this vulnerability
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: 1791708, 1791709, 1760626    
Bug Blocks: 1760628    

Description Pedro Sampaio 2019-10-10 15:04:55 UTC
The ICMP parser in tcpdump before 4.9.3 has a buffer over-read in print-icmp.c:icmp_print().

Upstream patch:

https://github.com/the-tcpdump-group/tcpdump/commit/1a1bce0526a77b62e41531b00f8bb5e21fd4f3a3

References:

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

Comment 1 Pedro Sampaio 2019-10-11 00:02:15 UTC
Created tcpdump tracking bugs for this issue:

Affects: fedora-all [bug 1760626]