CVE-2024-45746

CVSS 9.8 CRITICALEPSS 0.8%CWE-120

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.8EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

09 Oct 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

An issue was discovered in Trusted Firmware-M through 2.1.0. User provided (and controlled) mailbox messages contain a pointer to a list of input arguments (in_vec) and output arguments (out_vec). These list pointers are never validated. Each argument list contains a buffer pointer and a buffer length field. After a PSA call, the length of the output arguments behind the unchecked pointer is updated in mailbox_direct_reply, regardless of the call result. This allows an attacker to write anywhere in the secure firmware, which can be used to take over the control flow, leading to remote code execution (RCE).

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

n/a · n/a

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References

https://trustedfirmware-m.readthedocs.io/en/latest/security/security_advisories/user_pointers_mailbox_vectors_vulnerability.html https://www.trustedfirmware.org/projects/tf-m/