CVE-2024-36477
Last modified
CVE-2024-36477 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | > 6.6, < 6.6.33 | — |
| Linux | Linux Kernel | > 6.7, < 6.9.4 | — |
| Linux | Linux Kernel | 6.10 | Rc1 |
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
Timeline
- Published
- Last Modified
- Status
- Modified
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