CVE-2023-30696

Vulnerability

IpcTxGetVerifyAkey in libsec-ril prior to Samsung's SMR Aug-2023 Release 1 contains an improper input validation flaw [1]. This allows an attacker to cause an out-of-bounds write [1]. The exact affected versions are not enumerated in the available reference, but the fix is included in the SMR Aug-2023 Release 1 security update [1].

Exploitation

The available references do not detail the specific conditions required for exploitation. However, the vulnerability is reachable through the RIL (Radio Interface Layer) interface, which typically requires an attacker to have local access or be able to inject crafted IPC messages [1]. The lack of proper input validation can be leveraged by sending malicious input to the IpcTxGetVerifyAkey function.

Impact

A successful out-of-bounds write can lead to memory corruption, potentially enabling an attacker to achieve arbitrary code execution or cause a denial of service [1]. The exact privilege level gained is not specified in the available references.

Mitigation

Samsung has addressed this vulnerability in their SMR Aug-2023 Release 1 security update [1]. Users should apply the latest firmware update from Samsung to remediate the issue. No workarounds have been disclosed.