Bug 1607323 – CVE-2018-14340 wireshark: Multiple dissectors could crash (wnpa-sec-2018-36)

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Bug 1607323 - (CVE-2018-14340) CVE-2018-14340 wireshark: Multiple dissectors could crash (wnpa-sec-2018-36)

Summary:	CVE-2018-14340 wireshark: Multiple dissectors could crash (wnpa-sec-2018-36)

Status:	NEW

Aliases:	CVE-2018-14340

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

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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URL:
Whiteboard:	impact=moderate,public=20180718,repor...
Keywords:	Security

Depends On:	1607333 1612146 1607334
Blocks:	1607335
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Reported:	2018-07-23 05:48 EDT by Andrej Nemec
Modified:	2018-08-06 15:41 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	wireshark 2.6.2, wireshark 2.4.8, wireshark 2.2.16
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Description Andrej Nemec 2018-07-23 05:48:58 EDT

It was found that dissectors that support zlib decompression could crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.

Upstream bug(s):

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14675

External References:

https://www.wireshark.org/security/wnpa-sec-2018-36.html

Comment 1 Andrej Nemec 2018-07-23 05:58:59 EDT

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1607334]

Comment 5 Pedro Yóssis Silva Barbosa 2018-08-06 15:41:57 EDT

Upstream patch:

https://code.wireshark.org/review/#/c/27561/2/epan/tvbuff_zlib.c

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