fkie_nvd - fkie_cve-2025-40129

FKIE_CVE-2025-40129

Vulnerability from fkie_nvd - Published: 2025-11-12 11:15 - Updated: 2025-11-12 16:19

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix null pointer dereference on zero-length checksum In xdr_stream_decode_opaque_auth(), zero-length checksum.len causes checksum.data to be set to NULL. This triggers a NPD when accessing checksum.data in gss_krb5_verify_mic_v2(). This patch ensures that the value of checksum.len is not less than XDR_UNIT.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/81cec07d303186d0d8c623ef8b5ecd3b81e94cf6
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ab9a70cd2386a0d70c164b0905dd66bc9af52e77
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/affc03d44921f493deaae1d33151e3067a6f9f8f

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsunrpc: fix null pointer dereference on zero-length checksum\n\nIn xdr_stream_decode_opaque_auth(), zero-length checksum.len causes\nchecksum.data to be set to NULL. This triggers a NPD when accessing\nchecksum.data in gss_krb5_verify_mic_v2(). This patch ensures that\nthe value of checksum.len is not less than XDR_UNIT."
    }
  ],
  "id": "CVE-2025-40129",
  "lastModified": "2025-11-12T16:19:12.850",
  "metrics": {},
  "published": "2025-11-12T11:15:42.513",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/81cec07d303186d0d8c623ef8b5ecd3b81e94cf6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ab9a70cd2386a0d70c164b0905dd66bc9af52e77"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/affc03d44921f493deaae1d33151e3067a6f9f8f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-40129 (GCVE-0-2025-40129)

Vulnerability from cvelistv5 – Published: 2025-11-12 10:23 – Updated: 2025-12-01 06:18

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/81cec07d303186d0d…
	https://git.kernel.org/stable/c/affc03d44921f493d…
	https://git.kernel.org/stable/c/ab9a70cd2386a0d70…
	https://git.kernel.org/stable/c/6df164e29bd4e6505…

Impacted products

Vendor

Product

Version

Linux

Affected: 0653028e8f1c97fec30710813a001ad8a2ec34f4 , < 81cec07d303186d0d8c623ef8b5ecd3b81e94cf6 (git)
Affected: 0653028e8f1c97fec30710813a001ad8a2ec34f4 , < affc03d44921f493deaae1d33151e3067a6f9f8f (git)
Affected: 0653028e8f1c97fec30710813a001ad8a2ec34f4 , < ab9a70cd2386a0d70c164b0905dd66bc9af52e77 (git)
Affected: 0653028e8f1c97fec30710813a001ad8a2ec34f4 , < 6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42 (git)

Linux

Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.112 , ≤ 6.6.* (semver)
Unaffected: 6.12.53 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/auth_gss/svcauth_gss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "81cec07d303186d0d8c623ef8b5ecd3b81e94cf6",
              "status": "affected",
              "version": "0653028e8f1c97fec30710813a001ad8a2ec34f4",
              "versionType": "git"
            },
            {
              "lessThan": "affc03d44921f493deaae1d33151e3067a6f9f8f",
              "status": "affected",
              "version": "0653028e8f1c97fec30710813a001ad8a2ec34f4",
              "versionType": "git"
            },
            {
              "lessThan": "ab9a70cd2386a0d70c164b0905dd66bc9af52e77",
              "status": "affected",
              "version": "0653028e8f1c97fec30710813a001ad8a2ec34f4",
              "versionType": "git"
            },
            {
              "lessThan": "6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42",
              "status": "affected",
              "version": "0653028e8f1c97fec30710813a001ad8a2ec34f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/auth_gss/svcauth_gss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.112",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.53",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.3",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsunrpc: fix null pointer dereference on zero-length checksum\n\nIn xdr_stream_decode_opaque_auth(), zero-length checksum.len causes\nchecksum.data to be set to NULL. This triggers a NPD when accessing\nchecksum.data in gss_krb5_verify_mic_v2(). This patch ensures that\nthe value of checksum.len is not less than XDR_UNIT."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T06:18:34.691Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/81cec07d303186d0d8c623ef8b5ecd3b81e94cf6"
        },
        {
          "url": "https://git.kernel.org/stable/c/affc03d44921f493deaae1d33151e3067a6f9f8f"
        },
        {
          "url": "https://git.kernel.org/stable/c/ab9a70cd2386a0d70c164b0905dd66bc9af52e77"
        },
        {
          "url": "https://git.kernel.org/stable/c/6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42"
        }
      ],
      "title": "sunrpc: fix null pointer dereference on zero-length checksum",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40129",
    "datePublished": "2025-11-12T10:23:21.327Z",
    "dateReserved": "2025-04-16T07:20:57.170Z",
    "dateUpdated": "2025-12-01T06:18:34.691Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

FKIE_CVE-2025-40129

CVE-2025-40129 (GCVE-0-2025-40129)

Tags

Sightings

Nomenclature