{
  "GSD": {
    "alias": "CVE-2020-26268",
    "description": "In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.",
    "id": "GSD-2020-26268",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-26268.html",
      "https://security.archlinux.org/CVE-2020-26268"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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      "aliases": [
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      "details": "In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.",
      "id": "GSD-2020-26268",
      "modified": "2023-12-13T01:22:08.978406Z",
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        "TITLE": "Write to immutable memory region in TensorFlow"
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          "availabilityImpact": "LOW",
          "baseScore": 4.4,
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      "advisories": [
        {
          "affected_range": "(,1.15.5),[2.0.0,2.0.4),[2.1.0,2.1.3),[2.2.0,2.2.2),[2.3.0,2.3.2)",
          "affected_versions": "All versions before 1.15.5, all versions starting from 2.0.0 before 2.0.4, all versions starting from 2.1.0 before 2.1.3, all versions starting from 2.2.0 before 2.2.2, all versions starting from 2.3.0 before 2.3.2",
          "cvss_v2": "AV:L/AC:L/Au:N/C:N/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
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          "date": "2020-12-14",
          "description": "In affected versions of TensorFlow the `tf.raw_ops.ImmutableConst` operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden.",
          "fixed_versions": [],
          "identifier": "CVE-2020-26268",
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            "CVE-2020-26268",
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          "package_slug": "maven/org.tensorflow/parentpom",
          "pubdate": "2020-12-10",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Out-of-bounds Write",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-26268"
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          "uuid": "1841febe-7f96-496f-9411-ea24065d8fed"
        },
        {
          "affected_range": "\u003c1.15.5||\u003e=2.0.0,\u003c2.0.4||\u003e=2.1.0,\u003c2.1.3||\u003e=2.2.0,\u003c2.2.2||\u003e=2.3.0,\u003c2.3.2",
          "affected_versions": "All versions before 1.15.5, all versions starting from 2.0.0 before 2.0.4, all versions starting from 2.1.0 before 2.1.3, all versions starting from 2.2.0 before 2.2.2, all versions starting from 2.3.0 before 2.3.2",
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          "cwe_ids": [
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            "CWE-937"
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          "date": "2021-01-07",
          "description": "In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.",
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            "2.0.4",
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          "not_impacted": "All versions starting from 1.15.5 before 2.0.0, all versions starting from 2.0.4 before 2.1.0, all versions starting from 2.1.3 before 2.2.0, all versions starting from 2.2.2 before 2.3.0, all versions starting from 2.3.2",
          "package_slug": "pypi/tensorflow-cpu",
          "pubdate": "2020-12-10",
          "solution": "Upgrade to versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2 or above.",
          "title": "Write to immutable memory region in TensorFlow",
          "urls": [
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            "https://nvd.nist.gov/vuln/detail/CVE-2020-26268",
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          "affected_range": "\u003c1.15.5||\u003e=2.0.0,\u003c2.0.4||\u003e=2.1.0,\u003c2.1.3||\u003e=2.2.0,\u003c2.2.2||\u003e=2.3.0,\u003c2.3.2",
          "affected_versions": "All versions before 1.15.5, all versions starting from 2.0.0 before 2.0.4, all versions starting from 2.1.0 before 2.1.3, all versions starting from 2.2.0 before 2.2.2, all versions starting from 2.3.0 before 2.3.2",
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          "cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
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          "description": "In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.",
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          "not_impacted": "All versions starting from 1.15.5 before 2.0.0, all versions starting from 2.0.4 before 2.1.0, all versions starting from 2.1.3 before 2.2.0, all versions starting from 2.2.2 before 2.3.0, all versions starting from 2.3.2",
          "package_slug": "pypi/tensorflow-gpu",
          "pubdate": "2020-12-10",
          "solution": "Upgrade to versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2 or above.",
          "title": "Write to immutable memory region in TensorFlow",
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          "solution": "Upgrade to version 2.4.0 or above.",
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        "1.5.0",
        "1.5.1",
        "1.6.0",
        "1.7.0",
        "1.7.1",
        "1.8.0",
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  "aliases": [
    "CVE-2020-26268",
    "GHSA-hhvc-g5hv-48c6"
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  "details": "In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.",
  "id": "PYSEC-2020-334",
  "modified": "2021-12-09T06:35:16.406292Z",
  "published": "2020-12-10T23:15:00Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890b5060bc7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hhvc-g5hv-48c6"
    }
  ]
}

{
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        "1.15.4",
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        "1.2.0rc0",
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        "2.2.0",
        "2.2.1",
        "2.3.0",
        "2.3.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26268",
    "GHSA-hhvc-g5hv-48c6"
  ],
  "details": "In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.",
  "id": "PYSEC-2020-255",
  "modified": "2021-08-27T03:22:22.907995Z",
  "published": "2020-12-10T23:15:00Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890b5060bc7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hhvc-g5hv-48c6"
    }
  ]
}

{
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        "name": "tensorflow-cpu",
        "purl": "pkg:pypi/tensorflow-cpu"
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          "type": "GIT"
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              "fixed": "2.1.3"
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            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.2.2"
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            {
              "introduced": "2.3.0"
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            {
              "fixed": "2.3.2"
            }
          ],
          "type": "ECOSYSTEM"
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      ],
      "versions": [
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        "2.1.0",
        "2.1.1",
        "2.1.2",
        "2.2.0",
        "2.2.1",
        "2.3.0",
        "2.3.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26268",
    "GHSA-hhvc-g5hv-48c6"
  ],
  "details": "In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.",
  "id": "PYSEC-2020-299",
  "modified": "2021-12-09T06:34:44.590878Z",
  "published": "2020-12-10T23:15:00Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890b5060bc7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hhvc-g5hv-48c6"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "tensorflow"
      },
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        "name": "tensorflow"
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    {
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    },
    {
      "package": {
        "ecosystem": "PyPI",
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        "name": "tensorflow-cpu"
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              "introduced": "0"
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            {
              "fixed": "1.15.5"
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        }
      ]
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    {
      "package": {
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      },
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              "introduced": "2.0.0"
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        "name": "tensorflow-cpu"
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              "introduced": "2.1.0"
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        "ecosystem": "PyPI",
        "name": "tensorflow-cpu"
      },
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              "introduced": "2.2.0"
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      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "tensorflow-gpu"
      },
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              "introduced": "0"
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              "fixed": "1.15.5"
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        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "tensorflow-gpu"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "tensorflow-gpu"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.1.0"
            },
            {
              "fixed": "2.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "tensorflow-gpu"
      },
      "ranges": [
        {
          "events": [
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              "introduced": "2.2.0"
            },
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              "fixed": "2.2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "tensorflow-gpu"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.3.0"
            },
            {
              "fixed": "2.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26268"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-471"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-12-10T19:05:24Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nThe `tf.raw_ops.ImmutableConst` operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area:\n\n```python\n\u003e\u003e\u003e import tensorflow as tf\n\u003e\u003e\u003e with open(\u0027/tmp/test.txt\u0027,\u0027w\u0027) as f: f.write(\u0027a\u0027*128)\n\u003e\u003e\u003e tf.raw_ops.ImmutableConst(dtype=tf.string,shape=2,\n                              memory_region_name=\u0027/tmp/test.txt\u0027)\n```\n\nIf the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault.\n\nThis is because the alocator used to return the buffer data is not marked as returning an opaque handle since the [needed virtual method](https://github.com/tensorflow/tensorflow/blob/c1e1fc899ad5f8c725dcbb6470069890b5060bc7/tensorflow/core/framework/typed_allocator.h#L78-L85) is [not overriden](https://github.com/tensorflow/tensorflow/blob/acdf3c04fcfa767ae8d109b9e1f727ef050dba4d/tensorflow/core/kernels/immutable_constant_op.cc).\n\n### Patches\nWe have patched the issue in GitHub commit [c1e1fc899ad5f8c725dcbb6470069890b5060bc7](https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890b5060bc7) and will release TensorFlow 2.4.0 containing the patch. TensorFlow nightly packages after this commit will also have the issue resolved.\n\nSince this issue also impacts TF versions before 2.4, we will patch all releases between 1.15 and 2.3 inclusive.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.\n\n### Attribution\nThis vulnerability has been reported by members of the Aivul Team from Qihoo 360.",
  "id": "GHSA-hhvc-g5hv-48c6",
  "modified": "2024-10-28T20:04:42Z",
  "published": "2020-12-10T19:07:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hhvc-g5hv-48c6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26268"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890b5060bc7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2020-299.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2020-334.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2020-255.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/tensorflow/tensorflow"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Write to immutable memory region in TensorFlow"
}