Bug 1549265 (CVE-2018-7337) - CVE-2018-7337 wireshark: DOCSIS dissector crash in packet-docsis.c by injecting a malformed packet
Summary: CVE-2018-7337 wireshark: DOCSIS dissector crash in packet-docsis.c by injecti...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-7337
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1549266
Blocks: 1549310
TreeView+ depends on / blocked
 
Reported: 2018-02-26 20:45 UTC by Laura Pardo
Modified: 2021-02-17 00:46 UTC (History)
8 users (show)

Fixed In Version: wireshark 2.4.5
Doc Type: If docs needed, set a value
Doc Text:
A denial of service flaw was found in the DOCSIS dissector in Wireshark. A remote network attacker could potentially use this flaw to crash Wireshark by tricking it into processing a crafted packet.
Clone Of:
Environment:
Last Closed: 2018-03-16 09:03:27 UTC
Embargoed:


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Description Laura Pardo 2018-02-26 20:45:35 UTC
A flaw was found in Wireshark 2.4.0 to 2.4.4, the DOCSIS protocol dissector could crash. This was addressed in plugins/docsis/packet-docsis.c by removing the recursive algorithm that had been used for concatenated PDUs. 

External References:

https://www.wireshark.org/security/wnpa-sec-2018-08.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14446

Upstream Patch:

https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=511a8b0b546d254

Comment 1 Laura Pardo 2018-02-26 20:45:51 UTC
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1549266]


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