CVE-2023-53189 (GCVE-0-2023-53189)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:05 – Updated: 2026-08-05 09:13
VLAI
Title
ipv6/addrconf: fix a potential refcount underflow for idev
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6/addrconf: fix a potential refcount underflow for idev Now in addrconf_mod_rs_timer(), reference idev depends on whether rs_timer is not pending. Then modify rs_timer timeout. There is a time gap in [1], during which if the pending rs_timer becomes not pending. It will miss to hold idev, but the rs_timer is activated. Thus rs_timer callback function addrconf_rs_timer() will be executed and put idev later without holding idev. A refcount underflow issue for idev can be caused by this. if (!timer_pending(&idev->rs_timer)) in6_dev_hold(idev); <--------------[1] mod_timer(&idev->rs_timer, jiffies + when); To fix the issue, hold idev if mod_timer() return 0.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b7b1bfce0bb68bd8f6e62a28295922785cc63781 , < c6395e32935d35e6f935e7caf1c2dac5a95943b4 (git)
Affected: b7b1bfce0bb68bd8f6e62a28295922785cc63781 , < df62fdcd004afa72ecbed0e862ebb983acd3aa57 (git)
Affected: b7b1bfce0bb68bd8f6e62a28295922785cc63781 , < c7eeba47058532f6077d6a658e38b6698f6ae71a (git)
Affected: b7b1bfce0bb68bd8f6e62a28295922785cc63781 , < 2ad31ce40e8182860b631e37209e93e543790b7c (git)
Affected: b7b1bfce0bb68bd8f6e62a28295922785cc63781 , < 82abd1c37d3bf2a2658b34772c17a25a6f9cca42 (git)
Affected: b7b1bfce0bb68bd8f6e62a28295922785cc63781 , < 436b7cc7eae7851c184b671ed7a4a64c750b86f7 (git)
Affected: b7b1bfce0bb68bd8f6e62a28295922785cc63781 , < 1f656e483eb4733d62f18dfb206a49b78f60f495 (git)
Affected: b7b1bfce0bb68bd8f6e62a28295922785cc63781 , < 06a0716949c22e2aefb648526580671197151acc (git)
Affected: 973d5956f754cfc306f5e274d71503498f4b0324 (git)
Affected: 3.10.105 , < 3.11 (semver)
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Linux Linux Affected: 3.11
Unaffected: 0 , < 3.11 (semver)
Unaffected: 4.14.322 , ≤ 4.14.* (semver)
Unaffected: 4.19.291 , ≤ 4.19.* (semver)
Unaffected: 5.4.251 , ≤ 5.4.* (semver)
Unaffected: 5.10.188 , ≤ 5.10.* (semver)
Unaffected: 5.15.121 , ≤ 5.15.* (semver)
Unaffected: 6.1.40 , ≤ 6.1.* (semver)
Unaffected: 6.4.5 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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        "id": "CVE-2023-53189",
        "lastModified": "2026-08-04T10:18:57.257",
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                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-09-15T14:15:41.150",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/06a0716949c22e2aefb648526580671197151acc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1f656e483eb4733d62f18dfb206a49b78f60f495"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/2ad31ce40e8182860b631e37209e93e543790b7c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/436b7cc7eae7851c184b671ed7a4a64c750b86f7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/82abd1c37d3bf2a2658b34772c17a25a6f9cca42"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/c6395e32935d35e6f935e7caf1c2dac5a95943b4"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/c7eeba47058532f6077d6a658e38b6698f6ae71a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/df62fdcd004afa72ecbed0e862ebb983acd3aa57"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-191"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:21:16+00:00",
      "cve": "CVE-2023-53189",
      "id": "CVE-2023-53189",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ipv6/addrconf: fix a potential refcount underflow for idev",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53189.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-15T02:25:26Z",
      "cve": "CVE-2023-53189",
      "id": "CVE-2023-53189",
      "initial_release_date": "2025-09-17T23:29:36Z",
      "product_status:known_affected": "626",
      "product_status:known_not_affected": "26",
      "product_status:recommended": "439",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53189",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53189.json",
      "version": "56"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.