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NVD / CVE Program· CNA Linux

CVE-2024-36477: tpm_tis_spi: Account for SPI header when allocating TPM SPI xfer buffer

HighCVSS 7.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.22% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 1547183852dcdfcc25878db7dd3620509217b0cd, 195aba96b854dd664768f382cd1db375d8181f88, de13c56f99477b56980c7e00b09c776d16b7563d; Azure Linux 3.0 ARM 6.6.35.1-4; Azure Linux 3.0 x64 6.6.35.1-4.

Low priority for now. Upgrade to Linux Linux 1547183852dcdfcc25878db7dd3620509217b0cd, 195aba96b854dd664768f382cd1db375d8181f88, de13c56f99477b56980c7e00b09c776d16b7563d; Azure Linux 3.0 ARM 6.6.35.1-4; Azure Linux 3.0 x64 6.6.35.1-4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Jun 21, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 12th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · Linux
7.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 6.6affected
    • a86a42ac2bd652fdc7836a9d880c306a2485c142 and later · before 1547183852dcdfcc25878db7dd3620509217b0cdaffected · git
    • a86a42ac2bd652fdc7836a9d880c306a2485c142 and later · before de13c56f99477b56980c7e00b09c776d16b7563daffected · git
    • a86a42ac2bd652fdc7836a9d880c306a2485c142 and later · before 195aba96b854dd664768f382cd1db375d8181f88affected · git
    • before 6.6not affected · semver
    • 6.6.33 and later · up to and including 6.6.*not affected · semver
    • 6.9.4 and later · up to and including 6.9.*not affected · semver
    • 6.10 and laternot affected · original_commit_for_fix

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernelafter 6.6 · before 6.6.33
  • linux linux kernelafter 6.7 · before 6.9.4
  • linux linux kernel6.10

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:13linuxbefore 6.9.7-16.9.7-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-38637Jun 21, 2024 · greybus: lights: check return of get_channel_from_mode
    22Monitor
  • ← EarlierCVE-2024-34777Jun 21, 2024 · dma-mapping: benchmark: fix node id validation
    28Monitor
  • Later →CVE-2024-36481Jun 21, 2024 · tracing/probes: fix error check in parse_btf_field()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux1547183852dcdfcc25878db7dd3620509217b0cdVendor (CNA)
Linux Linux195aba96b854dd664768f382cd1db375d8181f88Vendor (CNA)
Linux Linuxde13c56f99477b56980c7e00b09c776d16b7563dVendor (CNA)
Azure Linux 3.0 ARM6.6.35.1-4 · kernelMicrosoft (MSRC)
Azure Linux 3.0 x646.6.35.1-4 · kernelMicrosoft (MSRC)
CBL Mariner 2.0 ARM5.15.160.1-1 · kernelMicrosoft (MSRC)
CBL Mariner 2.0 x645.15.160.1-1 · kernelMicrosoft (MSRC)
debian:linux6.9.7-1 · Debian:13Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records