CVE-2024-36477

high

Description

In the Linux kernel, the following vulnerability has been resolved: tpm_tis_spi: Account for SPI header when allocating TPM SPI xfer buffer The TPM SPI transfer mechanism uses MAX_SPI_FRAMESIZE for computing the maximum transfer length and the size of the transfer buffer. As such, it does not account for the 4 bytes of header that prepends the SPI data frame. This can result in out-of-bounds accesses and was confirmed with KASAN. Introduce SPI_HDRSIZE to account for the header and use to allocate the transfer buffer.

References

https://git.kernel.org/stable/c/de13c56f99477b56980c7e00b09c776d16b7563d

https://git.kernel.org/stable/c/195aba96b854dd664768f382cd1db375d8181f88

https://git.kernel.org/stable/c/1547183852dcdfcc25878db7dd3620509217b0cd

Details

Source: Mitre, NVD

Published: 2024-06-21

Updated: 2024-06-24

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High