2021-31400 | InterNiche NicheStack TCP Segment tcp_in.c tcp_pulloutofband infinite loop
|CVSS Meta Temp Score
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|CTI Interest Score
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A vulnerability was found in InterNiche NicheStack 4.0.1 and classified as critical. This issue affects the function
tcp_pulloutofband of the file tcp_in.c of the component TCP Segment Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-835. Impacted is availability. The summary by CVE is:
An issue was discovered in tcp_pulloutofband() in tcp_in.c in HCC embedded InterNiche 4.0.1. The TCP out-of-band urgent-data processing function invokes a panic function if the pointer to the end of the out-of-band data points outside of the TCP segment’s data. If the panic function hadn’t a trap invocation removed, it will enter an infinite loop and therefore cause DoS (continuous loop or a device reset).
The weakness was published 08/19/2021. It is possible to read the advisory at forescout.com. The identification of this vulnerability is CVE-2021-31400 since 04/15/2021. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2
Status: Not defined
0-Day Time: 🔒
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