CVE-2021-36762

High

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).

SeverityHigh
CVSS7.5
Exploit probability—
ProductHcc-embedded Nichestack
PublishedAug 19, 2021
First seenAug 19, 2021

How to fix

Update
  • hcc-embedded nichestack4.3 or later

Affected products

ProductAffected versionsFixed in
hcc-embedded nichestackv < 4.34.3

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