CVE-2024-36477: linux Out-of-bounds Read
Vulnerability summary
CVE-2024-36477 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 16 · Related 13Timeline
- 21-06-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
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 metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
0.00 pp
From 0.22% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu80 products
- linux< 6.8.0-44.44
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1015.16
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ a86a42ac2bd652fdc7836a9d880c306a2485c142, < 1547183852dcdfcc25878db7dd3620509217b0cd | ≥ a86a42ac2bd652fdc7836a9d880c306a2485c142, < de13c56f99477b56980c7e00b09c776d16b7563d | ≥ a86a42ac2bd652fdc7836a9d880c306a2485c142, < 195aba96b854dd664768f382cd1db375d8181f88 | 6.6
- linux_kernel> 6.6, < 6.6.33 | > 6.7, < 6.9.4 | 6.10:rc1
Debian1 product
- linux< 6.9.7-1
3 vendors · 83 products
