by Kastro
Paper/Archive/CVE-2021-27417

CVE-2021-27417

eCosCentric eCosPro RTOS — eCosCentric eCosPro RTOS Integer Overflow or Wraparound

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
39
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 48.7.487 × 209.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

eCosCentric eCosPro RTOS Versions 2.0.1 through 4.5.3 are vulnerable to integer wraparound in function calloc (an implementation of malloc). The unverified memory assignment can lead to arbitrary memory allocation, resulting in a heap-based buffer overflow.

Affected

ProductAffectedFixed inSource
eCosPro RTOS 2.0.1 – 4.5.3–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
icscert (CNA)4.6CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refcisa.gov/uscert/ics/advisories/icsa-21-119-04refbugzilla.ecoscentric.com/show_bug.cgi?id=1002437