Trusted Firmware-A (TF-A) before 2.10 has a potential read out-of-bounds in the SDEI service. The input parameter passed in register x1 is not validated well enough in the function sdei_interrupt_bind. The parameter is passed to a call to plat_ic_get_interrupt_type. It can be any arbitrary value passing checks in the function plat_ic_is_sgi. A compromised Normal World (Linux kernel) can enable a root-privileged attacker to issue arbitrary SMC calls. Using this primitive, he can control the content of registers x0 through x6, which are used to send parameters to TF-A. Out-of-bounds addresses can be read in the context of TF-A (EL3). Because the read value is never returned to non-secure memory or in registers, no leak is possible. An attacker can still crash TF-A, however.
References
Configurations
No configuration.
History
21 Nov 2024, 08:32
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L708 - | |
| References | () https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L714 - | |
| References | () https://trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisory-tfv-11.html - |
31 Oct 2024, 20:35
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.4 |
| CWE | CWE-125 |
21 Feb 2024, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-02-21 16:15
Updated : 2024-11-21 08:32
NVD link : CVE-2023-49100
Mitre link : CVE-2023-49100
CVE.ORG link : CVE-2023-49100
JSON object : View
Products Affected
No product.
CWE
CWE-125
Out-of-bounds Read