Bug 1581773 – CVE-2018-11358 wireshark: Use after free in packet-q931.c

Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.

Bug 1581773 - (CVE-2018-11358) CVE-2018-11358 wireshark: Use after free in packet-q931.c

Summary:	CVE-2018-11358 wireshark: Use after free in packet-q931.c

Status:	NEW

Aliases:	CVE-2018-11358

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20180513,repor...
Keywords:	Security

Depends On:	1581791 1591489 1581754
Blocks:	1581792
	Show dependency tree / graph

Reported:	2018-05-23 11:28 EDT by Laura Pardo
Modified:	2018-06-21 04:58 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	wireshark 2.6.1, wireshark 2.4.7, wireshark 2.2.15
Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in the code responsible for processing packages from Q.931 protocol, in wireshark. An attacker can send specially crafted packages over the network which, when received, would cause an application to crash, or potentially, corrupt information.
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:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Laura Pardo 2018-05-23 11:28:37 EDT

A flaw was found in Wireshark 2.6.0, 2.4.0 to 2.4.6, and 2.2.0 to 2.2.14, the Q.931 dissector could crash. It may be possible to make Wireshark crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file. This was addressed in epan/dissectors/packet-q931.c by avoiding a use-after-free after a malformed packet prevented certain cleanup.


References:
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14689 
https://www.wireshark.org/security/wnpa-sec-2018-31.html

Upstream Patch:
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=ccb1ac3c8cec47fbbbf2e80ced80644005c65252

Comment 1 Laura Pardo 2018-05-23 11:48:57 EDT

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1581754]

Note You need to log in before you can comment on or make changes to this bug.