NULL pointer dereference in mTower - CVE-2022-36622
Published: November 29, 2022
Vulnerability identifier: #VU69664
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-36622
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Samsung
Affected software:
mTower
mTower
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the TEE_GetObjectInfo1 function. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
How to mitigate CVE-2022-36622
Install update from vendor's website.
Sources
- https://github.com/Samsung/mTower/blob/18f4b592a8a973ce5972f4e2658ea0f6e3686284/tee/tee/tee_svc.c#L965
- https://github.com/Samsung/mTower
- https://github.com/Samsung/mTower/blob/18f4b592a8a973ce5972f4e2658ea0f6e3686284/tee/lib/libutee/tee_api_objects.c#L84
- https://security.samsungmobile.com/securityUpdate.smsb
- https://github.com/Samsung/mTower/releases/tag/v0.4.1