Vulnerability Details CVE-2021-36762
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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 56.3%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 7.8
References
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
- https://www.hcc-embedded.com/about/about-interniche
- https://www.kb.cert.org/vuls/id/608209
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
- https://www.hcc-embedded.com/about/about-interniche
- https://www.kb.cert.org/vuls/id/608209
Products affected by CVE-2021-36762
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cpe:2.3:a:hcc-embedded:nichestack:3.0