CVE-2018-7421
Last modified
CVE-2018-7421 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the DMP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dmp.c by correctly supporting a bounded number of Security Categories for a DMP Security Classification.. EPSS estimates a 1.71% chance of exploitation in the next 30 days.
Description
In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the DMP dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dmp.c by correctly supporting a bounded number of Security Categories for a DMP Security Classification.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wireshark | Wireshark | >= 2.2.0, <= 2.2.12 |
| Wireshark | Wireshark | >= 2.4.0, <= 2.4.4 |
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14408Exploit, Issue Tracking, Vendor Advisory
- https://www.wireshark.org/security/wnpa-sec-2018-06.htmlVendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14408Exploit, Issue Tracking, Vendor Advisory
- https://www.wireshark.org/security/wnpa-sec-2018-06.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Related CVEs from 2018
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