CVE-2021-35465
Last modified
CVE-2021-35465 is a low-severity vulnerability rated 3.4/10 on the CVSS scale. Certain Arm products before 2021-08-23 do not properly consider the effect of exceptions on a VLLDM instruction. A Non-secure handler may have read or write access to part of a Secure context. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
Certain Arm products before 2021-08-23 do not properly consider the effect of exceptions on a VLLDM instruction. A Non-secure handler may have read or write access to part of a Secure context. This affects Arm Cortex-M33 r0p0 through r1p0, Arm Cortex-M35P r0, Arm Cortex-M55 r0p0 through r1p0, and Arm China STAR-MC1 (in the STAR SE configuration).
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Arm | Cortex-M33 Firmware | >= r0p0, <= r1p0 |
| Arm | Cortex-M35p Firmware | r0 |
| Arm | Cortex-M55 Firmware | >= r0p0, <= r1p0 |
| Arm | China Star-Mc1 Firmware | All versions |
References
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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