Vulnerability Description
An issue was discovered in Suricata 4.1.3. The code mishandles the case of sending a network packet with the right type, such that the function DecodeEthernet in decode-ethernet.c is executed a second time. At this point, the algorithm cuts the first part of the packet and doesn't determine the current length. Specifically, if the packet is exactly 28 long, in the first iteration it subtracts 14 bytes. Then, it is working with a packet length of 14. At this point, the case distinction says it is a valid packet. After that it casts the packet, but this packet has no type, and the program crashes at the type case distinction.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Suricata-Ids | Suricata | 4.1.3 |
Related Weaknesses (CWE)
References
- https://redmine.openinfosecfoundation.org/issues/2946ExploitIssue TrackingThird Party Advisory
- https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/Not ApplicableRelease NotesVendor Advisory
- https://redmine.openinfosecfoundation.org/issues/2946ExploitIssue TrackingThird Party Advisory
- https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/Not ApplicableRelease NotesVendor Advisory
FAQ
What is CVE-2019-10056?
CVE-2019-10056 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in Suricata 4.1.3. The code mishandles the case of sending a network packet with the right type, such that the function DecodeEthernet in decode-ethernet.c is executed a second...
How severe is CVE-2019-10056?
CVE-2019-10056 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-2019-10056?
Check the references section above for vendor advisories and patch information. Affected products include: Suricata-Ids Suricata.