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CVE-2023-52696 (GCVE-0-2023-52696)

Vulnerability from cvelistv5 – Published: 2024-05-17 14:27 – Updated: 2026-05-11 19:31
VLAI
Title
powerpc/powernv: Add a null pointer check in opal_powercap_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv: Add a null pointer check in opal_powercap_init() kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-16 21:19 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b9ef7b4b867f56114bedbe6bf104cfaba0ca818e , < 9da4a56dd3772570512ca58aa8832b052ae910dc (git)
Affected: b9ef7b4b867f56114bedbe6bf104cfaba0ca818e , < a67a04ad05acb56640798625e73fa54d6d41cce1 (git)
Affected: b9ef7b4b867f56114bedbe6bf104cfaba0ca818e , < 6b58d16037217d0c64a2a09b655f370403ec7219 (git)
Affected: b9ef7b4b867f56114bedbe6bf104cfaba0ca818e , < f152a6bfd187f67afeffc9fd68cbe46f51439be0 (git)
Affected: b9ef7b4b867f56114bedbe6bf104cfaba0ca818e , < 69f95c5e9220f77ce7c540686b056c2b49e9a664 (git)
Affected: b9ef7b4b867f56114bedbe6bf104cfaba0ca818e , < b02ecc35d01a76b4235e008d2dd292895b28ecab (git)
Affected: b9ef7b4b867f56114bedbe6bf104cfaba0ca818e , < e123015c0ba859cf48aa7f89c5016cc6e98e018d (git)
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Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.4.268 , ≤ 5.4.* (semver)
Unaffected: 5.10.209 , ≤ 5.10.* (semver)
Unaffected: 5.15.148 , ≤ 5.15.* (semver)
Unaffected: 6.1.75 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
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linux linux_kernel Affected: b9ef7b4b867f , < e123015c0ba8 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: b9ef7b4b867f , < 9da4a56dd377 (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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linux linux_kernel Affected: b9ef7b4b867f , < a67a04ad05ac (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: b9ef7b4b867f , < 6b58d1603721 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: b9ef7b4b867f , < f152a6bfd187 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: b9ef7b4b867f , < 69f95c5e9220 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: b9ef7b4b867f , < b02ecc35d01a (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.4.268 , < 5.5 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.10.209 , < 5.11 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.15.148 , < 5.16 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.1.75 , < 6.2 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.6.14 , < 6.7 (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.7.2 , < 6.8 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.8
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 0 , < 4.20 (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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linux linux_kernel Affected: 4.2.0
    cpe:2.3:o:linux:linux_kernel:4.2.0:*:*:*:*:*:*:*
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                "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
              }
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            "title": "CVE Program Container"
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            "affected": [
              {
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                "defaultStatus": "affected",
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                "defaultStatus": "affected",
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                "defaultStatus": "affected",
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                "versions": [
                  {
                    "status": "affected",
                    "version": "4.2.0"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.5,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-52696",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-01-16T21:19:43.951324Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-476",
                    "description": "CWE-476 NULL Pointer Dereference",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
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            ],
            "providerMetadata": {
              "dateUpdated": "2024-05-17T18:09:59.282Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "arch/powerpc/platforms/powernv/opal-powercap.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/powernv: Add a null pointer check in opal_powercap_init()\n\nkasprintf() returns a pointer to dynamically allocated memory\nwhich can be NULL upon failure."
            }
          ],
          "providerMetadata": {
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              "url": "https://git.kernel.org/stable/c/9da4a56dd3772570512ca58aa8832b052ae910dc"
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            },
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            {
              "url": "https://git.kernel.org/stable/c/e123015c0ba859cf48aa7f89c5016cc6e98e018d"
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          ],
          "title": "powerpc/powernv: Add a null pointer check in opal_powercap_init()",
          "x_generator": {
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      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2023-52696",
        "datePublished": "2024-05-17T14:27:28.583Z",
        "dateReserved": "2024-03-07T14:49:46.889Z",
        "dateUpdated": "2025-01-16T21:20:15.174Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
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.


Detection rules are retrieved from Rulezet.


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.