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Bug 1549265 - (CVE-2018-7337) CVE-2018-7337 wireshark: DOCSIS dissector crash in packet-docsis.c by injecting a malformed packet
CVE-2018-7337 wireshark: DOCSIS dissector crash in packet-docsis.c by injecti...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20180219,reported=2...
: Security
Depends On: 1549266
Blocks: 1549310
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Reported: 2018-02-26 15:45 EST by Laura Pardo
Modified: 2018-03-19 10:14 EDT (History)
8 users (show)

See Also:
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.
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Environment:
Last Closed: 2018-03-16 05:03:27 EDT
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Laura Pardo 2018-02-26 15:45:35 EST 
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 15:45:51 EST 
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1549266]
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