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Bug 1549308 - (CVE-2018-7419) CVE-2018-7419 wireshark: NBAP dissector crash in nbap.cnf
CVE-2018-7419 wireshark: NBAP dissector crash in nbap.cnf
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=20180218,reported=2...
: Security
Depends On: 1549309
Blocks: 1549310
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Reported: 2018-02-26 17:46 EST by Laura Pardo
Modified: 2018-03-19 16:03 EDT (History)
8 users (show)

See Also:
Fixed In Version: wireshark 2.4.5, wireshark 2.2.13
Doc Type: If docs needed, set a value
Doc Text:
A denial of service flaw was found in the NBAP 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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Clone Of:
Environment:
Last Closed: 2018-03-16 04:05:23 EDT
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Regression: ---
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Documentation: ---
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 17:46:24 EST 
A flaw was found in Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the NBAP dissector could crash. This was addressed in epan/dissectors/asn1/nbap/nbap.cnf by ensuring DCH ID initialization. 

External References:

https://www.wireshark.org/security/wnpa-sec-2018-14.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14443

Upstream Patch:

https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=bebd3a1f50b0a2
Comment 1 Laura Pardo 2018-02-26 17:47:42 EST 
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1549309]
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