Bug 1760500 (CVE-2018-16301)

Summary:	CVE-2018-16301 tcpdump: Buffer overflow in the -F command line argument parser
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	luhliari, mruprich, msehnout, msekleta, thozza
Target Milestone:	---	Keywords:	Reopened, Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	tcpdump 4.99.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-01-21 18:14:23 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:	1760624, 2086463
Bug Blocks:	1760627

Description Pedro Sampaio 2019-10-10 17:03:15 UTC

libpcap before 1.9.1, as used in tcpdump before 4.9.3, has a buffer overflow and/or over-read because of errors in pcapng reading.

References:

https://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGES

Comment 1 Pedro Sampaio 2019-10-10 23:58:38 UTC

Created libpcap tracking bugs for this issue:

Affects: fedora-all [bug 1760624]

Comment 2 Riccardo Schirone 2020-01-21 18:14:23 UTC

According to upstream (see comments after https://github.com/the-tcpdump-group/libpcap/issues/855#issuecomment-575450988) this is not a real issue in libpcap, so I'm closing this as NOTABUG.

Comment 4 Mauro Matteo Cascella 2022-05-16 08:51:44 UTC

Following the discussion on https://github.com/the-tcpdump-group/libpcap/issues/855, I'm turning this bug into a security issue for tcpdump (instead of libpcap).

Upstream fix:
https://github.com/the-tcpdump-group/tcpdump/commit/faf8fb7 [master]
https://github.com/the-tcpdump-group/tcpdump/commit/8ab211a [4.9]