github - ghsa-cgvr-gqfv-x5mj

GHSA-CGVR-GQFV-X5MJ

Vulnerability from github – Published: 2025-02-05 12:33 – Updated: 2025-02-06 18:31

Details

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

netfilter: nf_tables: don't fail inserts if duplicate has expired

nftables selftests fail: run-tests.sh testcases/sets/0044interval_overlap_0 Expected: 0-2 . 0-3, got: W: [FAILED] ./testcases/sets/0044interval_overlap_0: got 1

Insertion must ignore duplicate but expired entries.

Moreover, there is a strange asymmetry in nft_pipapo_activate:

It refetches the current element, whereas the other ->activate callbacks (bitmap, hash, rhash, rbtree) use elem->priv. Same for .remove: other set implementations take elem->priv, nft_pipapo_remove fetches elem->priv, then does a relookup, remove this.

I suspect this was the reason for the change that prompted the removal of the expired check in pipapo_get() in the first place, but skipping exired elements there makes no sense to me, this helper is used for normal get requests, insertions (duplicate check) and deactivate callback.

In first two cases expired elements must be skipped.

For ->deactivate(), this gets called for DELSETELEM, so it seems to me that expired elements should be skipped as well, i.e. delete request should fail with -ENOENT error.

Severity ?

6.2 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52925"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-05T10:15:21Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: don\u0027t fail inserts if duplicate has expired\n\nnftables selftests fail:\nrun-tests.sh testcases/sets/0044interval_overlap_0\nExpected: 0-2 . 0-3, got:\nW: [FAILED]     ./testcases/sets/0044interval_overlap_0: got 1\n\nInsertion must ignore duplicate but expired entries.\n\nMoreover, there is a strange asymmetry in nft_pipapo_activate:\n\nIt refetches the current element, whereas the other -\u003eactivate callbacks\n(bitmap, hash, rhash, rbtree) use elem-\u003epriv.\nSame for .remove: other set implementations take elem-\u003epriv,\nnft_pipapo_remove fetches elem-\u003epriv, then does a relookup,\nremove this.\n\nI suspect this was the reason for the change that prompted the\nremoval of the expired check in pipapo_get() in the first place,\nbut skipping exired elements there makes no sense to me, this helper\nis used for normal get requests, insertions (duplicate check)\nand deactivate callback.\n\nIn first two cases expired elements must be skipped.\n\nFor -\u003edeactivate(), this gets called for DELSETELEM, so it\nseems to me that expired elements should be skipped as well, i.e.\ndelete request should fail with -ENOENT error.",
  "id": "GHSA-cgvr-gqfv-x5mj",
  "modified": "2025-02-06T18:31:05Z",
  "published": "2025-02-05T12:33:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52925"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/156369a702c33ad5434a19c3a689bfb836d4e0b8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59ee68c437c562170265194a99698c805a686bb3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7845914f45f066497ac75b30c50dbc735e84e884"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/891ca5dfe3b718b441fc786014a7ba8f517da188"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af78b0489e8898a8c9449ffc0fdd2e181916f0d4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-52925 (GCVE-0-2023-52925)

Vulnerability from cvelistv5 – Published: 2025-02-05 09:07 – Updated: 2025-05-04 12:49

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: don't fail inserts if duplicate has expired nftables selftests fail: run-tests.sh testcases/sets/0044interval_overlap_0 Expected: 0-2 . 0-3, got: W: [FAILED] ./testcases/sets/0044interval_overlap_0: got 1 Insertion must ignore duplicate but expired entries. Moreover, there is a strange asymmetry in nft_pipapo_activate: It refetches the current element, whereas the other ->activate callbacks (bitmap, hash, rhash, rbtree) use elem->priv. Same for .remove: other set implementations take elem->priv, nft_pipapo_remove fetches elem->priv, then does a relookup, remove this. I suspect this was the reason for the change that prompted the removal of the expired check in pipapo_get() in the first place, but skipping exired elements there makes no sense to me, this helper is used for normal get requests, insertions (duplicate check) and deactivate callback. In first two cases expired elements must be skipped. For ->deactivate(), this gets called for DELSETELEM, so it seems to me that expired elements should be skipped as well, i.e. delete request should fail with -ENOENT error.

Severity ?

6.2 (Medium)


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

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/891ca5dfe3b718b44…
	https://git.kernel.org/stable/c/af78b0489e8898a8c…
	https://git.kernel.org/stable/c/59ee68c437c562170…
	https://git.kernel.org/stable/c/156369a702c33ad54…
	https://git.kernel.org/stable/c/7845914f45f066497…

Impacted products

Vendor

Product

Version

Linux

Affected: b15ea4017af82011dd55225ce77cce3d4dfc169c , < 891ca5dfe3b718b441fc786014a7ba8f517da188 (git)
Affected: 7c7e658a36f8b1522bd3586d8137e5f93a25ddc5 , < af78b0489e8898a8c9449ffc0fdd2e181916f0d4 (git)
Affected: 59dab3bf0b8fc08eb802721c0532f13dd89209b8 , < 59ee68c437c562170265194a99698c805a686bb3 (git)
Affected: bd156ce9553dcaf2d6ee2c825d1a5a1718e86524 , < 156369a702c33ad5434a19c3a689bfb836d4e0b8 (git)
Affected: 24138933b97b055d486e8064b4a1721702442a9b , < 7845914f45f066497ac75b30c50dbc735e84e884 (git)
Affected: 94313a196b44184b5b52c1876da6a537701b425a (git)
Affected: 1da4874d05da1526b11b82fc7f3c7ac38749ddf8 (git)

Linux

Affected: 6.4.11 , < 6.4.12 (semver)

Show details on NVD website

JSON

To clipboard

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              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 6.2,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
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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.

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GHSA-CGVR-GQFV-X5MJ

CVE-2023-52925 (GCVE-0-2023-52925)

Tags

Sightings

Nomenclature