CVE-2025-39718 (GCVE-0-2025-39718)
Vulnerability from cvelistv5
Published
2025-09-05 17:21
Modified
2025-09-29 05:58
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Validate length in packet header before skb_put() When receiving a vsock packet in the guest, only the virtqueue buffer size is validated prior to virtio_vsock_skb_rx_put(). Unfortunately, virtio_vsock_skb_rx_put() uses the length from the packet header as the length argument to skb_put(), potentially resulting in SKB overflow if the host has gone wonky. Validate the length as advertised by the packet header before calling virtio_vsock_skb_rx_put().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0dab92484474587b82e8e0455839eaf5ac7bf894
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/676f03760ca1d69c2470cef36c44dc152494b47c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/969b06bd8b7560efb100a34227619e7d318fbe05
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ee438c492b2e0705d819ac0e25d04fae758d8f8f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/faf332a10372390ce65d0b803888f4b25a388335
Impacted products
Vendor Product Version
Linux Linux Version: baddcc2c71572968cdaeee1c4ab3dc0ad90fa765
Version: 71dc9ec9ac7d3eee785cdc986c3daeb821381e20
Version: 71dc9ec9ac7d3eee785cdc986c3daeb821381e20
Version: 71dc9ec9ac7d3eee785cdc986c3daeb821381e20
Version: 71dc9ec9ac7d3eee785cdc986c3daeb821381e20
 Create a notification for this product.
   Linux Linux Version: 6.3
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "969b06bd8b7560efb100a34227619e7d318fbe05",
              "status": "affected",
              "version": "baddcc2c71572968cdaeee1c4ab3dc0ad90fa765",
              "versionType": "git"
            },
            {
              "lessThan": "ee438c492b2e0705d819ac0e25d04fae758d8f8f",
              "status": "affected",
              "version": "71dc9ec9ac7d3eee785cdc986c3daeb821381e20",
              "versionType": "git"
            },
            {
              "lessThan": "faf332a10372390ce65d0b803888f4b25a388335",
              "status": "affected",
              "version": "71dc9ec9ac7d3eee785cdc986c3daeb821381e20",
              "versionType": "git"
            },
            {
              "lessThan": "676f03760ca1d69c2470cef36c44dc152494b47c",
              "status": "affected",
              "version": "71dc9ec9ac7d3eee785cdc986c3daeb821381e20",
              "versionType": "git"
            },
            {
              "lessThan": "0dab92484474587b82e8e0455839eaf5ac7bf894",
              "status": "affected",
              "version": "71dc9ec9ac7d3eee785cdc986c3daeb821381e20",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport.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": "6.1.*",
              "status": "unaffected",
              "version": "6.1.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.149",
                  "versionStartIncluding": "6.1.63",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.103",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.44",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.4",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: Validate length in packet header before skb_put()\n\nWhen receiving a vsock packet in the guest, only the virtqueue buffer\nsize is validated prior to virtio_vsock_skb_rx_put(). Unfortunately,\nvirtio_vsock_skb_rx_put() uses the length from the packet header as the\nlength argument to skb_put(), potentially resulting in SKB overflow if\nthe host has gone wonky.\n\nValidate the length as advertised by the packet header before calling\nvirtio_vsock_skb_rx_put()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:58:04.224Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/969b06bd8b7560efb100a34227619e7d318fbe05"
        },
        {
          "url": "https://git.kernel.org/stable/c/ee438c492b2e0705d819ac0e25d04fae758d8f8f"
        },
        {
          "url": "https://git.kernel.org/stable/c/faf332a10372390ce65d0b803888f4b25a388335"
        },
        {
          "url": "https://git.kernel.org/stable/c/676f03760ca1d69c2470cef36c44dc152494b47c"
        },
        {
          "url": "https://git.kernel.org/stable/c/0dab92484474587b82e8e0455839eaf5ac7bf894"
        }
      ],
      "title": "vsock/virtio: Validate length in packet header before skb_put()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39718",
    "datePublished": "2025-09-05T17:21:25.959Z",
    "dateReserved": "2025-04-16T07:20:57.117Z",
    "dateUpdated": "2025-09-29T05:58:04.224Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-39718\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-05T18:15:49.383\",\"lastModified\":\"2025-09-08T16:25:38.810\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nvsock/virtio: Validate length in packet header before skb_put()\\n\\nWhen receiving a vsock packet in the guest, only the virtqueue buffer\\nsize is validated prior to virtio_vsock_skb_rx_put(). Unfortunately,\\nvirtio_vsock_skb_rx_put() uses the length from the packet header as the\\nlength argument to skb_put(), potentially resulting in SKB overflow if\\nthe host has gone wonky.\\n\\nValidate the length as advertised by the packet header before calling\\nvirtio_vsock_skb_rx_put().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0dab92484474587b82e8e0455839eaf5ac7bf894\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/676f03760ca1d69c2470cef36c44dc152494b47c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/969b06bd8b7560efb100a34227619e7d318fbe05\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ee438c492b2e0705d819ac0e25d04fae758d8f8f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/faf332a10372390ce65d0b803888f4b25a388335\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.