CVE-2017-6473: Input Validation
First published: Sat Mar 04 2017(Updated: )
In Wireshark 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is a K12 file parser crash, triggered by a malformed capture file. This was addressed in wiretap/k12.c by validating the relationships between lengths and offsets.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wireshark Wireshark | >=2.0.0<=2.0.10 | |
| Wireshark Wireshark | >=2.2.0<=2.2.4 | |
| Debian GNU/Linux | =8.0 |
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Reference Links
- http://www.debian.org/security/2017/dsa-3811
- http://www.securityfocus.com/bid/96565
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13431
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=7edc761a01cda8e1b37677f673985582330317d2
- https://www.wireshark.org/security/wnpa-sec-2017-09.html
Frequently Asked Questions
What is the severity of CVE-2017-6473?
CVE-2017-6473 has a medium severity level due to its potential to cause application crashes.
How do I fix CVE-2017-6473?
To fix CVE-2017-6473, update Wireshark to version 2.2.5 or later for the 2.2.x series, or to version 2.0.11 or later for the 2.0.x series.
What software is affected by CVE-2017-6473?
CVE-2017-6473 affects Wireshark versions 2.0.0 to 2.0.10 and 2.2.0 to 2.2.4.
What type of vulnerability is CVE-2017-6473?
CVE-2017-6473 is a denial of service vulnerability caused by a crash in the K12 file parser.
Is there a known exploit for CVE-2017-6473?
As of now, there are no publicly known exploits targeting CVE-2017-6473 reported.
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- agent/software-canonical-lookup-request
- vendor/wireshark
- canonical/wireshark wireshark
- version/wireshark wireshark/2.0.0
- version/wireshark wireshark/2.0.10
- version/wireshark wireshark/2.2.0
- version/wireshark wireshark/2.2.4
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/8.0