Vulnerability Details : CVE-2019-10056
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2019-10056
- cpe:2.3:a:suricata-ids:suricata:4.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:suricata-ids:suricata:4.1.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-10056
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-10056
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-10056
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-10056
-
https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/
Suricata 4.1.4 released | SuricataNot Applicable;Release Notes;Vendor Advisory
-
https://redmine.openinfosecfoundation.org/issues/2946
Bug #2946: decode-ethernet: heapbuffer overflow in file decode-ethernet.c (master) - Suricata - Open Information Security FoundationExploit;Issue Tracking;Third Party Advisory
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