Vulnerabilities > CVE-2024-36477 - Out-of-bounds Read vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
References
- https://git.kernel.org/stable/c/1547183852dcdfcc25878db7dd3620509217b0cd
- https://git.kernel.org/stable/c/1547183852dcdfcc25878db7dd3620509217b0cd
- https://git.kernel.org/stable/c/195aba96b854dd664768f382cd1db375d8181f88
- https://git.kernel.org/stable/c/195aba96b854dd664768f382cd1db375d8181f88
- https://git.kernel.org/stable/c/de13c56f99477b56980c7e00b09c776d16b7563d
- https://git.kernel.org/stable/c/de13c56f99477b56980c7e00b09c776d16b7563d