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nvd[email protected]NVD:CVE-2022-25332
HistoryOct 19, 2023 - 10:15 a.m.

CVE-2022-25332

2023-10-1910:15:09
CWE-208
CWE-203
web.nvd.nist.gov
3
texas instruments omap l138
aes implementation
timing side channel
vulnerability
secure kernel routine
customer encryption key

CVSS3

4.1

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.8

Confidence

High

EPSS

0

Percentile

9.0%

The AES implementation in the Texas Instruments OMAP L138 (secure variants), present in mask ROM, suffers from a timing side channel which can be exploited by an adversary with non-secure supervisor privileges by managing cache contents and collecting timing information for different ciphertext inputs. Using this side channel, the SK_LOAD secure kernel routine can be used to recover the Customer Encryption Key (CEK).

Affected configurations

Nvd
Node
tiomap_l138_firmwareMatch-
AND
tiomap_l138Match-
VendorProductVersionCPE
tiomap_l138_firmware-cpe:2.3:o:ti:omap_l138_firmware:-:*:*:*:*:*:*:*
tiomap_l138-cpe:2.3:h:ti:omap_l138:-:*:*:*:*:*:*:*

References

CVSS3

4.1

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.8

Confidence

High

EPSS

0

Percentile

9.0%

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