github - ghsa-q3rg-6598-285v

GHSA-Q3RG-6598-285V

Vulnerability from github – Published: 2024-05-14 15:32 – Updated: 2024-07-03 18:40

Details

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

tcp: Fix Use-After-Free in tcp_ao_connect_init

Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of tcp_ao_connect_init, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free.

To prevent this, it should be changed to hlist_for_each_entry_safe.

Severity ?

8.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-27394"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-14T15:12:27Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Fix Use-After-Free in tcp_ao_connect_init\n\nSince call_rcu, which is called in the hlist_for_each_entry_rcu traversal\nof tcp_ao_connect_init, is not part of the RCU read critical section, it\nis possible that the RCU grace period will pass during the traversal and\nthe key will be free.\n\nTo prevent this, it should be changed to hlist_for_each_entry_safe.",
  "id": "GHSA-q3rg-6598-285v",
  "modified": "2024-07-03T18:40:10Z",
  "published": "2024-05-14T15:32:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27394"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80e679b352c3ce5158f3f778cfb77eb767e586fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca4fb6c6764b3f75b4f5aa81db1536291897ff7f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-27394 (GCVE-0-2024-27394)

Vulnerability from cvelistv5 – Published: 2024-05-09 16:37 – Updated: 2025-05-04 09:04

Summary

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix Use-After-Free in tcp_ao_connect_init Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of tcp_ao_connect_init, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

Severity ?

7.4 (High)


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

CWE

CWE-416 - Use After Free

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/ca4fb6c6764b3f75b…
	https://git.kernel.org/stable/c/80e679b352c3ce515…

Impacted products

Vendor

Product

Version

Linux

Affected: 7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f , < ca4fb6c6764b3f75b4f5aa81db1536291897ff7f (git)
Affected: 7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f , < 80e679b352c3ce5158f3f778cfb77eb767e586fb (git)

Linux

Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.8.9 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)

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        "metrics": [
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              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
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              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
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                "options": [
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-Q3RG-6598-285V

CVE-2024-27394 (GCVE-0-2024-27394)

Tags

Sightings

Nomenclature