CVE-2018-18227: Null Pointer Dereference
First published: Fri Oct 12 2018(Updated: )
In Wireshark 2.6.0 to 2.6.3 and 2.4.0 to 2.4.9, the MS-WSP protocol dissector could crash. This was addressed in epan/dissectors/packet-mswsp.c by properly handling NULL return values.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/wireshark | 2.6.20-0+deb10u4 2.6.20-0+deb10u7 3.4.10-0+deb11u1 4.0.6-1~deb12u1 4.0.10-1 | |
| Wireshark Wireshark | >=2.4.0<=2.4.9 | |
| Wireshark Wireshark | >=2.6.0<=2.6.3 | |
| Debian GNU/Linux | =9.0 |
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Reference Links
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15119
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=d443be449a52f95df5754adc39e1f3472fec2f03
- https://www.wireshark.org/security/wnpa-sec-2018-47.html
- https://security-tracker.debian.org/tracker/CVE-2018-18227
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/105583
- http://www.securitytracker.com/id/1041909
- https://www.debian.org/security/2018/dsa-4359
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=d443be449a52f95df5754adc39e1f3472fec2f03
Frequently Asked Questions
What is the severity of CVE-2018-18227?
CVE-2018-18227 has a medium severity rating due to the potential for the Wireshark application to crash.
How do I fix CVE-2018-18227?
To fix CVE-2018-18227, upgrade to Wireshark versions 2.6.4 or later, 2.4.10 or later, or any other version that includes the security patch.
What versions of Wireshark are vulnerable to CVE-2018-18227?
Wireshark versions 2.6.0 to 2.6.3 and 2.4.0 to 2.4.9 are vulnerable to CVE-2018-18227.
What is the cause of the vulnerability in CVE-2018-18227?
The vulnerability in CVE-2018-18227 is caused by improper handling of NULL return values in the MS-WSP protocol dissector.
Does CVE-2018-18227 affect Debian Linux systems?
Yes, CVE-2018-18227 affects Debian Linux systems running vulnerable versions of Wireshark.
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- vendor/wireshark
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- version/wireshark wireshark/2.4.0
- version/wireshark wireshark/2.4.9
- version/wireshark wireshark/2.6.0
- version/wireshark wireshark/2.6.3
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/9.0