Bug 1901990

Summary:	wireshark: the GQUIC dissector could crash due to incorrect offset advancement leading to excessive allocated memory
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	alekcejk, denis, huzaifas, lemenkov, mruprich, msehnout, peter, rschiron, rvokal, sergey.avseyev
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	wireshark 3.4.0, wireshark 3.2.8	Doc Type:	If docs needed, set a value
Doc Text:	An uncontrolled resource consumption flaw was discovered in wireshark, in its GQUIC dissector. A remote attacker could use this flaw to crash a running instance of wireshark/tshark or prevent it from reading a saved PCAP file.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-30 15:41:06 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:	1901991, 1902055
Bug Blocks:	1901992

Description Marian Rehak 2020-11-26 14:46:49 UTC

In Wireshark 3.2.0 to 3.2.7, the GQUIC dissector could crash. This was addressed in epan/dissectors/packet-gquic.c by correcting the implementation of offset advancement.

Upstream Issue:

https://gitlab.com/wireshark/wireshark/-/issues/16897

Upstream patch:

https://gitlab.com/wireshark/wireshark/-/commit/b287e7165e8aa89cde6ae37e7c257c5d87d16b9b

External Reference:

https://www.wireshark.org/security/wnpa-sec-2020-15.html

Comment 1 Marian Rehak 2020-11-26 14:47:16 UTC

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1901991]

Comment 3 Riccardo Schirone 2020-11-30 15:41:06 UTC

This is actually the same flaw bug as bug 1893110. See that instead.

*** This bug has been marked as a duplicate of bug 1893110 ***