Bug 1655932 (CVE-2018-19622)

Summary: CVE-2018-19622 wireshark: Infinite loop in the MMSE dissector
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: denis, huzaifas, lemenkov, mruprich, msehnout, phatina, rvokal
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: wireshark 2.6.5, wireshark 2.4.11 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability in MMSE dissector allows Wireshark to loop infinitely when parsing a specially crafted pcap file. Remote attacker could cause a denial of service to Wireshark by injecting malicious packets into the network that are automatically processed.
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: 1660148, 1655944, 1660149    
Bug Blocks: 1655949    

Description Andrej Nemec 2018-12-04 09:43:52 UTC
In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the MMSE dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-mmse.c by preventing length overflows.

Upstream issue:

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15250

Upstream patch:

https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=3b7555d32d11862f0e500ec466ad6bfe54190076

External References:

https://www.wireshark.org/security/wnpa-sec-2018-54.html

Comment 1 Andrej Nemec 2018-12-04 10:01:02 UTC
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1655944]

Comment 2 Adam Mariš 2018-12-17 15:57:09 UTC
Statement:

This issue affects the versions of wireshark as shipped with Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Enterprise Linux 5 is now in Extended Life Phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.