Vulnerability Details CVE-2021-35465
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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 22.5%
CVSS Severity
CVSS v3 Score 3.4
CVSS v2 Score 3.6
References
- https://developer.arm.com/support/arm-security-updates
- https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability
- https://developer.arm.com/support/arm-security-updates
- https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability
Products affected by CVE-2021-35465
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cpe:2.3:h:arm:china_star-mc1:-
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cpe:2.3:h:arm:cortex-m33:-
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cpe:2.3:h:arm:cortex-m35p:-
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cpe:2.3:h:arm:cortex-m55:-
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cpe:2.3:o:arm:china_star-mc1_firmware:-
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cpe:2.3:o:arm:cortex-m33_firmware:r0p0
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cpe:2.3:o:arm:cortex-m33_firmware:r1p0
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cpe:2.3:o:arm:cortex-m35p_firmware:r0
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cpe:2.3:o:arm:cortex-m55_firmware:r0p0
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cpe:2.3:o:arm:cortex-m55_firmware:r1p0