CVE-2021-27502
Texas Instruments TI-RTOS, when configured to use HeapMem heap(default), malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in 'HeapMem_allocUnprotected' and result in code…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Texas Instruments TI-RTOS, when configured to use HeapMem heap(default), malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in 'HeapMem_allocUnprotected' and result in code execution.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.28% probability · 20th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- ti/real-time operating system · ti/simplelink cc13xx software development kit · ti/simplelink cc26xx software development kit · ti/simplelink cc32xx software development kit · ti/simplelink msp432e401y · ti/simplelink msp432e411y
- Source
- ics-cert@hq.dhs.gov
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04Third Party Advisory, US Government Resource
- https://www.ti.com/tool/TI-RTOS-MCUProduct
- https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04Third Party Advisory, US Government Resource
- https://www.ti.com/tool/TI-RTOS-MCUProduct
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.