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.
References
Link Resource
https://redmine.openinfosecfoundation.org/issues/2946 Exploit Issue Tracking Third Party Advisory
https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/ Not Applicable Release Notes Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2019-08-28T20:17:17

Updated: 2019-08-28T20:17:17

Reserved: 2019-03-25T00:00:00


Link: CVE-2019-10056

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2019-08-28T21:15:10.630

Modified: 2021-07-21T11:39:23.747


Link: CVE-2019-10056

JSON object: View

cve-icon Redhat Information

No data.

CWE