VulnerabilityModified
CVE-2021-27417
eCosCentric eCosPro RTOS Versions 2.0.1 through 4.5.3 are vulnerable to integer wraparound in function calloc (an implementation of malloc).
CRITICAL 9.8EPSS 0.59%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.59% probability · 46th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- ecoscentric/ecospro
- Source
- ics-cert@hq.dhs.gov
References
- https://bugzilla.ecoscentric.com/show_bug.cgi?id=1002437Permissions Required, Vendor Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04Third Party Advisory, US Government Resource
- https://bugzilla.ecoscentric.com/show_bug.cgi?id=1002437Permissions Required, Vendor Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.