Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wireshark | Wireshark | >= 2.2.0, <= 2.2.12 |
Related Weaknesses (CWE)
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14408ExploitIssue TrackingVendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=656812ee
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=e8be5ada
- https://www.wireshark.org/security/wnpa-sec-2018-06.htmlVendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14408ExploitIssue TrackingVendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=656812ee
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=e8be5ada
- https://www.wireshark.org/security/wnpa-sec-2018-06.htmlVendor Advisory
FAQ
What is CVE-2018-7421?
CVE-2018-7421 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 Securi...
How severe is CVE-2018-7421?
CVE-2018-7421 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-7421?
Check the references section above for vendor advisories and patch information. Affected products include: Wireshark Wireshark.