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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

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

Updated: 2024-08-04T22:10:09.252Z

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

Link: CVE-2019-10056

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2024-11-21T04:18:17.930

Link: CVE-2019-10056

cve-icon Redhat

No data.