CVE-2023-41325
CVSS V2 None
CVSS V3 None
Description
OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.20 and prior to version 3.22, `shdr_verify_signature` can make a double free. `shdr_verify_signature` used to verify a TA binary before it is loaded. To verify a signature of it, allocate a memory for RSA key. RSA key allocate function (`sw_crypto_acipher_alloc_rsa_public_key`) will try to allocate a memory (which is optee’s heap memory). RSA key is consist of exponent and modulus (represent as variable `e`, `n`) and it allocation is not atomic way, so it may succeed in `e` but fail in `n`. In this case sw_crypto_acipher_alloc_rsa_public_key` will free on `e` and return as it is failed but variable ‘e’ is remained as already freed memory address . `shdr_verify_signature` will free again that memory (which is `e`) even it is freed when it failed allocate RSA key. A patch is available in version 3.22. No known workarounds are available.
Overview
- CVE ID
- CVE-2023-41325
- Assigner
- GitHub_M
- Vulnerability Status
- PUBLISHED
- Published Version
- 2023-09-15T19:40:58.065Z
- Last Modified Date
- 2023-09-15T19:40:58.065Z
Weakness Enumerations
References
Reference URL | Reference Tags |
---|---|
https://github.com/OP-TEE/optee_os/security/advisories/GHSA-jrw7-63cq-7vhm | x_refsource_CONFIRM |
https://github.com/OP-TEE/optee_os/commit/e2ec831cb07ed0099535c7c140cb6338aa62816a | x_refsource_MISC |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-41325 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-41325 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2024-06-25 03:33:24 | Added to TrackCVE |