CVE-2017-17997: Null Pointer Dereference
First published: Sat Dec 30 2017(Updated: )
In Wireshark before 2.2.12, the MRDISC dissector misuses a NULL pointer and crashes. This was addressed in epan/dissectors/packet-mrdisc.c by validating an IPv4 address. This vulnerability is similar to CVE-2017-9343.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wireshark Wireshark | <=2.2.11 | |
| Debian GNU/Linux | =8.0 |
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Reference Links
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299
- https://code.wireshark.org/review/#/c/25063/
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=80a695869c9aef2fb473d9361da068022be7cb50
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
- https://www.wireshark.org/security/wnpa-sec-2018-02.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=80a695869c9aef2fb473d9361da068022be7cb50
Frequently Asked Questions
What is the severity of CVE-2017-17997?
CVE-2017-17997 is considered a moderate severity vulnerability as it can lead to a crash of the Wireshark application.
How do I fix CVE-2017-17997?
To fix CVE-2017-17997, you should upgrade Wireshark to version 2.2.12 or later.
Which versions of Wireshark are affected by CVE-2017-17997?
Wireshark versions prior to 2.2.12, specifically up to 2.2.11, are affected by CVE-2017-17997.
Is CVE-2017-17997 specific to any operating systems?
CVE-2017-17997 affects Wireshark on multiple operating systems, including Debian GNU/Linux version 8.0.
What is the nature of the vulnerability in CVE-2017-17997?
CVE-2017-17997 involves a NULL pointer misuse in the MRDISC dissector leading to potential application crashes.
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