github - ghsa-6952-99fq-g3mw

GHSA-6952-99FQ-G3MW

Vulnerability from github – Published: 2025-03-14 15:32 – Updated: 2025-11-03 21:33

Details

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

netfilter: allow exp not to be removed in nf_ct_find_expectation

Currently nf_conntrack_in() calling nf_ct_find_expectation() will remove the exp from the hash table. However, in some scenario, we expect the exp not to be removed when the created ct will not be confirmed, like in OVS and TC conntrack in the following patches.

This patch allows exp not to be removed by setting IPS_CONFIRMED in the status of the tmpl.

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-2023-52927"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-14T15:15:39Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: allow exp not to be removed in nf_ct_find_expectation\n\nCurrently nf_conntrack_in() calling nf_ct_find_expectation() will\nremove the exp from the hash table. However, in some scenario, we\nexpect the exp not to be removed when the created ct will not be\nconfirmed, like in OVS and TC conntrack in the following patches.\n\nThis patch allows exp not to be removed by setting IPS_CONFIRMED\nin the status of the tmpl.",
  "id": "GHSA-6952-99fq-g3mw",
  "modified": "2025-11-03T21:33:11Z",
  "published": "2025-03-14T15:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52927"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3fa58a6fbd1e9e5682d09cdafb08fba004cb12ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4914109a8e1e494c6aa9852f9e84ec77a5fc643f"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    },
    {
      "type": "WEB",
      "url": "https://seadragnol.github.io/posts/CVE-2023-52927"
    }
  ],
  "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-2023-52927 (GCVE-0-2023-52927)

Vulnerability from cvelistv5 – Published: 2025-03-14 14:25 – Updated: 2025-11-03 19:28

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: allow exp not to be removed in nf_ct_find_expectation Currently nf_conntrack_in() calling nf_ct_find_expectation() will remove the exp from the hash table. However, in some scenario, we expect the exp not to be removed when the created ct will not be confirmed, like in OVS and TC conntrack in the following patches. This patch allows exp not to be removed by setting IPS_CONFIRMED in the status of the tmpl.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/3fa58a6fbd1e9e568…
	https://git.kernel.org/stable/c/4914109a8e1e494c6…
	https://seadragnol.github.io/posts/CVE-2023-52927/

Impacted products

Vendor

Product

Version

Linux

Affected: 1bc91a5ddf3eaea0e0ea957cccf3abdcfcace00e , < 3fa58a6fbd1e9e5682d09cdafb08fba004cb12ec (git)
Affected: 1bc91a5ddf3eaea0e0ea957cccf3abdcfcace00e , < 4914109a8e1e494c6aa9852f9e84ec77a5fc643f (git)

Linux

Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.130 , ≤ 6.1.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)

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JSON

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      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:28:52.085Z",
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        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
          }
        ],
        "title": "CVE Program Container"
      }
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            "net/netfilter/nft_ct.c"
          ],
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              "version": "1bc91a5ddf3eaea0e0ea957cccf3abdcfcace00e",
              "versionType": "git"
            },
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              "lessThan": "4914109a8e1e494c6aa9852f9e84ec77a5fc643f",
              "status": "affected",
              "version": "1bc91a5ddf3eaea0e0ea957cccf3abdcfcace00e",
              "versionType": "git"
            }
          ]
        },
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          "product": "Linux",
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          ],
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              "version": "0",
              "versionType": "semver"
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                }
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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-6952-99FQ-G3MW

CVE-2023-52927 (GCVE-0-2023-52927)

Tags

Sightings

Nomenclature