First published: Wed Apr 12 2017(Updated: )
In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the SLSK dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-slsk.c by adding checks for the remaining length.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
Wireshark Wireshark | =2.0.0 | |
Wireshark Wireshark | =2.0.1 | |
Wireshark Wireshark | =2.0.2 | |
Wireshark Wireshark | =2.0.3 | |
Wireshark Wireshark | =2.0.4 | |
Wireshark Wireshark | =2.0.5 | |
Wireshark Wireshark | =2.0.6 | |
Wireshark Wireshark | =2.0.7 | |
Wireshark Wireshark | =2.0.8 | |
Wireshark Wireshark | =2.0.9 | |
Wireshark Wireshark | =2.0.10 | |
Wireshark Wireshark | =2.0.11 | |
Wireshark Wireshark | =2.2.0 | |
Wireshark Wireshark | =2.2.1 | |
Wireshark Wireshark | =2.2.2 | |
Wireshark Wireshark | =2.2.3 | |
Wireshark Wireshark | =2.2.4 | |
Wireshark Wireshark | =2.2.5 | |
Debian GNU/Linux | =8.0 |
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CVE-2017-7746 affects Wireshark versions 2.0.0 to 2.0.11 and 2.2.0 to 2.2.5.
CVE-2017-7746 involves a potential infinite loop in the SLSK dissector triggered by packet injection or malformed capture files.
To mitigate CVE-2017-7746, upgrade to a version of Wireshark that is not affected, specifically versions beyond 2.2.5.
The fix for CVE-2017-7746 included adding checks for the remaining length in the SLSK dissector code.
CVE-2017-7746 has the potential to cause denial of service due to an infinite loop, which can be considered critical in certain scenarios.