gsd-2017-9605
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.
Aliases
Aliases
CVE-2017-9605


To clipboard 

{
  "GSD": {
    "alias": "CVE-2017-9605",
    "description": "The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.",
    "id": "GSD-2017-9605",
    "references": [
      "https://www.debian.org/security/2017/dsa-3945",
      "https://www.debian.org/security/2017/dsa-3927",
      "https://ubuntu.com/security/CVE-2017-9605",
      "https://advisories.mageia.org/CVE-2017-9605.html",
      "https://linux.oracle.com/cve/CVE-2017-9605.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2017-9605"
      ],
      "details": "The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.",
      "id": "GSD-2017-9605",
      "modified": "2023-12-13T01:21:07.338350Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2017-9605",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
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            "value": "The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call."
          }
        ]
      },
      "problemtype": {
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        "reference_data": [
          {
            "name": "DSA-3927",
            "refsource": "DEBIAN",
            "url": "http://www.debian.org/security/2017/dsa-3927"
          },
          {
            "name": "https://github.com/torvalds/linux/commit/07678eca2cf9c9a18584e546c2b2a0d0c9a3150c",
            "refsource": "CONFIRM",
            "url": "https://github.com/torvalds/linux/commit/07678eca2cf9c9a18584e546c2b2a0d0c9a3150c"
          },
          {
            "name": "DSA-3945",
            "refsource": "DEBIAN",
            "url": "http://www.debian.org/security/2017/dsa-3945"
          },
          {
            "name": "99095",
            "refsource": "BID",
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          },
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            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=07678eca2cf9c9a18584e546c2b2a0d0c9a3150c"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.11.4",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
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          "ID": "CVE-2017-9605"
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        "data_version": "4.0",
        "description": {
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              "value": "The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-200"
                }
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/torvalds/linux/commit/07678eca2cf9c9a18584e546c2b2a0d0c9a3150c",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
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            },
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              "refsource": "CONFIRM",
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            },
            {
              "name": "DSA-3945",
              "refsource": "DEBIAN",
              "tags": [],
              "url": "http://www.debian.org/security/2017/dsa-3945"
            },
            {
              "name": "DSA-3927",
              "refsource": "DEBIAN",
              "tags": [],
              "url": "http://www.debian.org/security/2017/dsa-3927"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.9,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:C/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2017-11-04T01:29Z",
      "publishedDate": "2017-06-13T19:29Z"
    }
  }
}


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