An unvalidated input in Silicon Labs TrustZone implementation in v4.3.x and earlier of the Gecko SDK allows an attacker to access the trusted region of memory from the untrusted region.
Buffer overflow in Wi-Fi Commissioning MicriumOS example in Silicon Labs Gecko SDK v4.2.3 or earlier allows connected device to write payload onto the stack.
A heap-based buffer overflow vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted set of network packets can lead to arbitrary code execution. An attacker can send a malicious packet to trigger this vulnerability.
An out-of-bounds write vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to memory corruption. An attacker can send a network request to trigger this vulnerability.
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.
A potential buffer overflow exists in the Bluetooth LE HCI CPC sample application in the Gecko SDK which may result in a denial of service or remote code execution
Prior to v7.4.0, Ember ZNet is vulnerable to a denial of service attack through manipulation of the NWK sequence number
Compiler removal of buffer clearing in slicryptoacctransparentkeyagreement in Silicon Labs Gecko Platform SDK v4.2.1 and earlier results in key material duplication to RAM.
Compiler removal of buffer clearing in
sliseopaqueimportkey
in Silicon Labs Gecko Platform SDK v4.2.1 and earlier results in key material duplication to RAM.
Compiler removal of buffer clearing in
slicryptotransparentaeadencrypttag
in Silicon Labs Gecko Platform SDK v4.2.1 and earlier results in key material duplication to RAM.
Compiler removal of buffer clearing in
slisedrivermaccompute
in Silicon Labs Gecko Platform SDK v4.2.1 and earlier results in key material duplication to RAM.
Compiler removal of buffer clearing in
slisesignhash in Silicon Labs Gecko Platform SDK v4.2.1 and earlier results in key material duplication to RAM.
Compiler removal of buffer clearing in
slisesignmessage
in Silicon Labs Gecko Platform SDK v4.2.1 and earlier results in key material duplication to RAM.
Compiler removal of buffer clearing in
slisedriverkeyagreement
in Silicon Labs Gecko Platform SDK v4.2.1 and earlier results in key material duplication to RAM.
Compiler removal of buffer clearing in
slicryptotransparentaeaddecrypttag
in Silicon Labs Gecko Platform SDK v4.2.1 and earlier results in key material duplication to RAM.
An Observable Timing Discrepancy, Covert Timing Channel vulnerability in Silabs GSDK on ARM potentially allows Padding Oracle Crypto Attack on CBC PKCS7.This issue affects GSDK: through 4.4.0.
Glitch detection is not enabled by default for the CortexM33 core in Silicon Labs secure vault high parts EFx32xG2xB, except EFR32xG21B.
A memory leak in the Silicon Labs' Bluetooth stack for EFR32 products may cause memory to be exhausted when sending notifications to multiple clients, this results in all Bluetooth operations, such as advertising and scanning, to stop.
Forcing the Bluetooth LE stack to segment 'prepare write response' packets can lead to an out-of-bounds memory access.
A malformed packet containing an invalid destination address, causes a stack overflow in the Ember ZNet stack. This causes an assert which leads to a reset, immediately clearing the error.
An invalid ‘prepare write request’ command can cause the Bluetooth LE stack to run out of memory and fail to be able to handle subsequent connection requests, resulting in a denial-of-service.
A bug exists in the API, meshnodepoweroff(), which fails to copy the contents of the Replay Protection List (RPL) from RAM to NVM before powering down, resulting in the ability to replay unsaved messages. Note that as of June 2024, the Gecko SDK was renamed to the Simplicity SDK, and the versioning scheme was changed from Gecko SDK vX.Y.Z to Simplicity SDK YYYY.MM.Patch#.
Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to leak data from Secure stack via malformed GBL file.
The initialization vector (IV) used by the secure engine (SE) for encrypting data stored in the SE flash memory is uninitialized.
Buffer overflow in Platform CLI component in Silicon Labs Gecko SDK v4.2.1 and earlier allows user to overwrite limited structures on the heap.