CVE-2023-4020
An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.57% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125, CWE-787
- Affected
- silabs/gecko software development kit
- Source
- product-security@silabs.com
References
- https://community.silabs.com/069Vm0000004b95IAAPermissions Required
- https://github.com/SiliconLabs/gecko_sdk/releasesRelease Notes
- https://community.silabs.com/069Vm0000004b95IAAPermissions Required
- https://github.com/SiliconLabs/gecko_sdk/releasesRelease Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.