github - ghsa-cw72-f9mw-h9c4

GHSA-CW72-F9MW-H9C4

Vulnerability from github – Published: 2024-05-01 15:30 – Updated: 2024-07-03 18:38

Details

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

libbpf: Use OPTS_SET() macro in bpf_xdp_query()

When the feature_flags and xdp_zc_max_segs fields were added to the libbpf bpf_xdp_query_opts, the code writing them did not use the OPTS_SET() macro. This causes libbpf to write to those fields unconditionally, which means that programs compiled against an older version of libbpf (with a smaller size of the bpf_xdp_query_opts struct) will have its stack corrupted by libbpf writing out of bounds.

The patch adding the feature_flags field has an early bail out if the feature_flags field is not part of the opts struct (via the OPTS_HAS) macro, but the patch adding xdp_zc_max_segs does not. For consistency, this fix just changes the assignments to both fields to use the OPTS_SET() macro.

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-2024-27050"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T13:15:50Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibbpf: Use OPTS_SET() macro in bpf_xdp_query()\n\nWhen the feature_flags and xdp_zc_max_segs fields were added to the libbpf\nbpf_xdp_query_opts, the code writing them did not use the OPTS_SET() macro.\nThis causes libbpf to write to those fields unconditionally, which means\nthat programs compiled against an older version of libbpf (with a smaller\nsize of the bpf_xdp_query_opts struct) will have its stack corrupted by\nlibbpf writing out of bounds.\n\nThe patch adding the feature_flags field has an early bail out if the\nfeature_flags field is not part of the opts struct (via the OPTS_HAS)\nmacro, but the patch adding xdp_zc_max_segs does not. For consistency, this\nfix just changes the assignments to both fields to use the OPTS_SET()\nmacro.",
  "id": "GHSA-cw72-f9mw-h9c4",
  "modified": "2024-07-03T18:38:03Z",
  "published": "2024-05-01T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27050"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/682ddd62abd4bdcee7584246903e7a2df005fe0d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92a871ab9fa59a74d013bc04f321026a057618e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c"
    }
  ],
  "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-2024-27050 (GCVE-0-2024-27050)

Vulnerability from cvelistv5 – Published: 2024-05-01 12:54 – Updated: 2025-05-04 09:03

Summary

In the Linux kernel, the following vulnerability has been resolved: libbpf: Use OPTS_SET() macro in bpf_xdp_query() When the feature_flags and xdp_zc_max_segs fields were added to the libbpf bpf_xdp_query_opts, the code writing them did not use the OPTS_SET() macro. This causes libbpf to write to those fields unconditionally, which means that programs compiled against an older version of libbpf (with a smaller size of the bpf_xdp_query_opts struct) will have its stack corrupted by libbpf writing out of bounds. The patch adding the feature_flags field has an early bail out if the feature_flags field is not part of the opts struct (via the OPTS_HAS) macro, but the patch adding xdp_zc_max_segs does not. For consistency, this fix just changes the assignments to both fields to use the OPTS_SET() macro.

Severity ?

5.5 (Medium)


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

CWE

CWE-787 - Out-of-bounds Write

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/fa5bef5e80c6a3321…
	https://git.kernel.org/stable/c/682ddd62abd4bdcee…
	https://git.kernel.org/stable/c/cd3be9843247edb8f…
	https://git.kernel.org/stable/c/92a871ab9fa59a74d…

Impacted products

Vendor

Product

Version

Linux

Affected: 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 , < fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c (git)
Affected: 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 , < 682ddd62abd4bdcee7584246903e7a2df005fe0d (git)
Affected: 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 , < cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e (git)
Affected: 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 , < 92a871ab9fa59a74d013bc04f321026a057618e7 (git)

Linux

Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.23 , ≤ 6.6.* (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)

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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-CW72-F9MW-H9C4

CVE-2024-27050 (GCVE-0-2024-27050)

Tags

Sightings

Nomenclature