Vulnerability Description
An issue was discovered in HCC Embedded InterNiche NicheStack through 4.3. The tfshnd():tftpsrv.c TFTP packet processing function doesn't ensure that a filename is adequately '\0' terminated; therefore, a subsequent call to strlen for the filename might read out of bounds of the protocol packet buffer (if no '\0' byte exists within a reasonable range).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Hcc-Embedded | Nichestack | < 4.3 |
References
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilitiMitigationThird Party Advisory
- https://www.hcc-embedded.com/about/about-internicheProduct
- https://www.kb.cert.org/vuls/id/608209Third Party AdvisoryUS Government Resource
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilitiMitigationThird Party Advisory
- https://www.hcc-embedded.com/about/about-internicheProduct
- https://www.kb.cert.org/vuls/id/608209Third Party AdvisoryUS Government Resource
FAQ
What is CVE-2021-36762?
CVE-2021-36762 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in HCC Embedded InterNiche NicheStack through 4.3. The tfshnd():tftpsrv.c TFTP packet processing function doesn't ensure that a filename is adequately '\0' terminated; therefor...
How severe is CVE-2021-36762?
CVE-2021-36762 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-2021-36762?
Check the references section above for vendor advisories and patch information. Affected products include: Hcc-Embedded Nichestack.