Vulnerability-Lookup

GHSA-J5GM-GF6P-7HPM

Vulnerability from github – Published: 2024-08-08 09:30 – Updated: 2024-09-06 15:32

Details

In the Linux kernel, the following vulnerability has been resolved:

tpm: Use auth only after NULL check in tpm_buf_check_hmac_response()

Dereference auth after NULL check in tpm_buf_check_hmac_response(). Otherwise, unless tpm2_sessions_init() was called, a call can cause NULL dereference, when TCG_TPM2_HMAC is enabled.

[jarkko: adjusted the commit message.]

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42255"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-08T09:15:08Z",
    "severity": "MODERATE"
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Use auth only after NULL check in tpm_buf_check_hmac_response()\n\nDereference auth after NULL check in tpm_buf_check_hmac_response().\nOtherwise, unless tpm2_sessions_init() was called, a call can cause NULL\ndereference, when TCG_TPM2_HMAC is enabled.\n\n[jarkko: adjusted the commit message.]",
  "id": "GHSA-j5gm-gf6p-7hpm",
  "modified": "2024-09-06T15:32:56Z",
  "published": "2024-08-08T09:30:37Z",
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    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42255"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7dc357d343f134bf59815ff6098b93503ec8a23b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9afbb9a0c734197c59c43610071041044bf1562"
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-42255 (GCVE-0-2024-42255)

Vulnerability from cvelistv5 – Published: 2024-08-08 08:49 – Updated: 2026-05-11 20:28

Title

tpm: Use auth only after NULL check in tpm_buf_check_hmac_response()

Summary

In the Linux kernel, the following vulnerability has been resolved: tpm: Use auth only after NULL check in tpm_buf_check_hmac_response() Dereference auth after NULL check in tpm_buf_check_hmac_response(). Otherwise, unless tpm2_sessions_init() was called, a call can cause NULL dereference, when TCG_TPM2_HMAC is enabled. [jarkko: adjusted the commit message.]

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:13 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

2 references

URL	Tags
https://git.kernel.org/stable/c/b9afbb9a0c734197c…
https://git.kernel.org/stable/c/7dc357d343f134bf5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d , < b9afbb9a0c734197c59c43610071041044bf1562 (git) Affected: 7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d , < 7dc357d343f134bf59815ff6098b93503ec8a23b (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.10.1 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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