CVE-2024-36477
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1547183852dcdfcc25878db7dd3620509217b0cdMailing List, Patch
- https://git.kernel.org/stable/c/195aba96b854dd664768f382cd1db375d8181f88Mailing List, Patch
- https://git.kernel.org/stable/c/de13c56f99477b56980c7e00b09c776d16b7563dMailing List, Patch
- https://git.kernel.org/stable/c/1547183852dcdfcc25878db7dd3620509217b0cdMailing List, Patch
- https://git.kernel.org/stable/c/195aba96b854dd664768f382cd1db375d8181f88Mailing List, Patch
- https://git.kernel.org/stable/c/de13c56f99477b56980c7e00b09c776d16b7563dMailing List, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.