Common Weakness Enumeration
CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6310 vulnerabilities reference this CWE, most recent first.
GHSA-XCQ5-JM7F-RP35
Vulnerability from github – Published: 2022-10-21 12:00 – Updated: 2022-10-26 12:00
VLAI
Details
A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfs_bmap_lookup_at_level of the file fs/nilfs2/inode.c of the component nilfs2. The manipulation leads to null pointer dereference. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211920.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2022-3621"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-20T20:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfs_bmap_lookup_at_level of the file fs/nilfs2/inode.c of the component nilfs2. The manipulation leads to null pointer dereference. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211920.",
"id": "GHSA-xcq5-jm7f-rp35",
"modified": "2022-10-26T12:00:39Z",
"published": "2022-10-21T12:00:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3621"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=21a87d88c2253350e115029f14fe2a10a7e6c856"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.211920"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XCV8-6XFC-9686
Vulnerability from github – Published: 2022-05-13 01:09 – Updated: 2025-04-20 03:39
VLAI
Details
The _asn1_check_identifier function in GNU Libtasn1 through 4.12 causes a NULL pointer dereference and crash when reading crafted input that triggers assignment of a NULL value within an asn1_node structure. It may lead to a remote denial of service attack.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2017-10790"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-07-02T03:29:00Z",
"severity": "HIGH"
},
"details": "The _asn1_check_identifier function in GNU Libtasn1 through 4.12 causes a NULL pointer dereference and crash when reading crafted input that triggers assignment of a NULL value within an asn1_node structure. It may lead to a remote denial of service attack.",
"id": "GHSA-xcv8-6xfc-9686",
"modified": "2025-04-20T03:39:43Z",
"published": "2022-05-13T01:09:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-10790"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1464141"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00026.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201710-11"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3547-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4106"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XCWJ-WFCM-M23C
Vulnerability from github – Published: 2021-05-21 14:22 – Updated: 2024-10-30 23:19
VLAI
Summary
Invalid validation in `SparseMatrixSparseCholesky`
Details
Impact
An attacker can trigger a null pointer dereference by providing an invalid permutation to tf.raw_ops.SparseMatrixSparseCholesky:
import tensorflow as tf
import numpy as np
from tensorflow.python.ops.linalg.sparse import sparse_csr_matrix_ops
indices_array = np.array([[0, 0]])
value_array = np.array([-10.0], dtype=np.float32)
dense_shape = [1, 1]
st = tf.SparseTensor(indices_array, value_array, dense_shape)
input = sparse_csr_matrix_ops.sparse_tensor_to_csr_sparse_matrix(
st.indices, st.values, st.dense_shape)
permutation = tf.constant([], shape=[1, 0], dtype=tf.int32)
tf.raw_ops.SparseMatrixSparseCholesky(input=input, permutation=permutation, type=tf.float32)
This is because the implementation fails to properly validate the input arguments:
void Compute(OpKernelContext* ctx) final {
...
const Tensor& input_permutation_indices = ctx->input(1);
...
ValidateInputs(ctx, *input_matrix, input_permutation_indices, &batch_size, &num_rows);
...
}
void ValidateInputs(OpKernelContext* ctx,
const CSRSparseMatrix& sparse_matrix,
const Tensor& permutation_indices, int* batch_size,
int64* num_rows) {
OP_REQUIRES(ctx, sparse_matrix.dtype() == DataTypeToEnum<T>::value, ...)
...
}
Although ValidateInputs is called and there are checks in the body of this function, the code proceeds to the next line in ValidateInputs since OP_REQUIRES is a macro that only exits the current function.
#define OP_REQUIRES(CTX, EXP, STATUS) \
do { \
if (!TF_PREDICT_TRUE(EXP)) { \
CheckNotInComputeAsync((CTX), "OP_REQUIRES_ASYNC"); \
(CTX)->CtxFailure(__FILE__, __LINE__, (STATUS)); \
return; \
} \
} while (0)
Thus, the first validation condition that fails in ValidateInputs will cause an early return from that function. However, the caller will continue execution from the next line. The fix is to either explicitly check context->status() or to convert ValidateInputs to return a Status.
Patches
We have patched the issue in GitHub commit e6a7c7cc18c3aaad1ae0872cb0a959f5c923d2bd.
The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.
For more information
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
Attribution
This vulnerability has been reported by Ying Wang and Yakun Zhang of Baidu X-Team.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.2.0"
},
{
"fixed": "2.2.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.3.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-29530"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2021-05-18T23:03:26Z",
"nvd_published_at": "2021-05-14T20:15:00Z",
"severity": "LOW"
},
"details": "### Impact\nAn attacker can trigger a null pointer dereference by providing an invalid `permutation` to `tf.raw_ops.SparseMatrixSparseCholesky`:\n\n```python\nimport tensorflow as tf\nimport numpy as np\nfrom tensorflow.python.ops.linalg.sparse import sparse_csr_matrix_ops\n\nindices_array = np.array([[0, 0]])\nvalue_array = np.array([-10.0], dtype=np.float32)\ndense_shape = [1, 1]\nst = tf.SparseTensor(indices_array, value_array, dense_shape)\n\ninput = sparse_csr_matrix_ops.sparse_tensor_to_csr_sparse_matrix(\n st.indices, st.values, st.dense_shape)\n\npermutation = tf.constant([], shape=[1, 0], dtype=tf.int32)\n \ntf.raw_ops.SparseMatrixSparseCholesky(input=input, permutation=permutation, type=tf.float32)\n```\n\nThis is because the [implementation](https://github.com/tensorflow/tensorflow/blob/080f1d9e257589f78b3ffb75debf584168aa6062/tensorflow/core/kernels/sparse/sparse_cholesky_op.cc#L85-L86) fails to properly validate the input arguments: \n \n```cc \nvoid Compute(OpKernelContext* ctx) final {\n ...\n const Tensor\u0026 input_permutation_indices = ctx-\u003einput(1);\n ...\n ValidateInputs(ctx, *input_matrix, input_permutation_indices, \u0026batch_size, \u0026num_rows);\n ...\n}\n\nvoid ValidateInputs(OpKernelContext* ctx,\n const CSRSparseMatrix\u0026 sparse_matrix,\n const Tensor\u0026 permutation_indices, int* batch_size,\n int64* num_rows) {\n OP_REQUIRES(ctx, sparse_matrix.dtype() == DataTypeToEnum\u003cT\u003e::value, ...)\n ...\n}\n```\nAlthough `ValidateInputs` is called and there are checks in the body of this function, the code proceeds to the next line in `ValidateInputs` since [`OP_REQUIRES`](https://github.com/tensorflow/tensorflow/blob/080f1d9e257589f78b3ffb75debf584168aa6062/tensorflow/core/framework/op_requires.h#L41-L48) is a macro that only exits the current function.\n\n```cc\n#define OP_REQUIRES(CTX, EXP, STATUS) \\\n do { \\\n if (!TF_PREDICT_TRUE(EXP)) { \\\n CheckNotInComputeAsync((CTX), \"OP_REQUIRES_ASYNC\"); \\\n (CTX)-\u003eCtxFailure(__FILE__, __LINE__, (STATUS)); \\\n return; \\\n } \\\n } while (0)\n```\n\nThus, the first validation condition that fails in `ValidateInputs` will cause an early return from that function. However, the caller will continue execution from the next line. The fix is to either explicitly check `context-\u003estatus()` or to convert `ValidateInputs` to return a `Status`.\n\n### Patches\nWe have patched the issue in GitHub commit [e6a7c7cc18c3aaad1ae0872cb0a959f5c923d2bd](https://github.com/tensorflow/tensorflow/commit/e6a7c7cc18c3aaad1ae0872cb0a959f5c923d2bd).\n\nThe fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.\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 Ying Wang and Yakun Zhang of Baidu X-Team.",
"id": "GHSA-xcwj-wfcm-m23c",
"modified": "2024-10-30T23:19:46Z",
"published": "2021-05-21T14:22:09Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-xcwj-wfcm-m23c"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29530"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/e6a7c7cc18c3aaad1ae0872cb0a959f5c923d2bd"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-458.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-656.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-167.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/tensorflow/tensorflow"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Invalid validation in `SparseMatrixSparseCholesky`"
}
GHSA-XCX5-VQWH-3FW6
Vulnerability from github – Published: 2025-10-01 12:30 – Updated: 2026-01-20 18:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
ionic: catch failure from devlink_alloc
Add a check for NULL on the alloc return. If devlink_alloc() fails and we try to use devlink_priv() on the NULL return, the kernel gets very unhappy and panics. With this fix, the driver load will still fail, but at least it won't panic the kernel.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-53470"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-01T12:15:49Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nionic: catch failure from devlink_alloc\n\nAdd a check for NULL on the alloc return. If devlink_alloc() fails and\nwe try to use devlink_priv() on the NULL return, the kernel gets very\nunhappy and panics. With this fix, the driver load will still fail,\nbut at least it won\u0027t panic the kernel.",
"id": "GHSA-xcx5-vqwh-3fw6",
"modified": "2026-01-20T18:31:51Z",
"published": "2025-10-01T12:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53470"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0020c16c8af7f4bc9503a2088fb30793b6771fac"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0d02efe7f25158c93146e3bb827bc7bb3cd5e71a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4a54903ff68ddb33b6463c94b4eb37fc584ef760"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5325f50de5b1433b27dda7ccff5cb7283722a3f1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c177dd465f5c1e5f242cdb9258826c591c257e9a"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XF25-29FJ-Q584
Vulnerability from github – Published: 2022-05-14 01:11 – Updated: 2022-05-14 01:11
VLAI
Details
A NULL pointer dereference in the function _TIFFmemcmp at tif_unix.c (called from TIFFWriteDirectoryTagTransferfunction) in LibTIFF 4.0.9 allows an attacker to cause a denial-of-service through a crafted tiff file. This vulnerability can be triggered by the executable tiffcp.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2018-17000"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-13T16:29:00Z",
"severity": "MODERATE"
},
"details": "A NULL pointer dereference in the function _TIFFmemcmp at tif_unix.c (called from TIFFWriteDirectoryTagTransferfunction) in LibTIFF 4.0.9 allows an attacker to cause a denial-of-service through a crafted tiff file. This vulnerability can be triggered by the executable tiffcp.",
"id": "GHSA-xf25-29fj-q584",
"modified": "2022-05-14T01:11:48Z",
"published": "2022-05-14T01:11:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17000"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/02/msg00026.html"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3906-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4670"
},
{
"type": "WEB",
"url": "http://bugzilla.maptools.org/show_bug.cgi?id=2811"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00041.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105342"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XF2Q-QG27-GGXV
Vulnerability from github – Published: 2025-03-17 18:31 – Updated: 2025-03-17 18:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
spi: spi-fsl-qspi: check return value after calling platform_get_resource_byname()
It will cause null-ptr-deref if platform_get_resource_byname() returns NULL, we need check the return value.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-49475"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:23Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: spi-fsl-qspi: check return value after calling platform_get_resource_byname()\n\nIt will cause null-ptr-deref if platform_get_resource_byname() returns NULL,\nwe need check the return value.",
"id": "GHSA-xf2q-qg27-ggxv",
"modified": "2025-03-17T18:31:50Z",
"published": "2025-03-17T18:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49475"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/10f537219629769498ecb8515e096be213224c24"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/33dda87d04598ac5d9a849218a373443f7d3de66"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/560dcbe1c7a78f597f2167371ebdbe2bca3d0735"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9d9c84825c3ec359b165c762a424cfdefe87fdd7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a2b331ac11e1cac56f5b7d367e9f3c5796deaaed"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XF4J-MPGP-536J
Vulnerability from github – Published: 2024-12-16 18:31 – Updated: 2024-12-16 18:31
VLAI
Details
A vulnerability, which was classified as problematic, has been found in FabulaTech USB over Network 6.0.6.1. Affected by this issue is the function 0x220420 in the library ftusbbus2.sys of the component IOCT Handler. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-12655"
],
"database_specific": {
"cwe_ids": [
"CWE-404",
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-16T17:15:09Z",
"severity": "MODERATE"
},
"details": "A vulnerability, which was classified as problematic, has been found in FabulaTech USB over Network 6.0.6.1. Affected by this issue is the function 0x220420 in the library ftusbbus2.sys of the component IOCT Handler. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-xf4j-mpgp-536j",
"modified": "2024-12-16T18:31:09Z",
"published": "2024-12-16T18:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-12655"
},
{
"type": "WEB",
"url": "https://shareforall.notion.site/FabulaTech-USB-over-Network-Client-ftusbbus2-0x220420-NPD-DOS-15160437bb1e80898c8bf2dc1f7a24e7"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.288524"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.288524"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.456029"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-XF52-GG4R-HJ5F
Vulnerability from github – Published: 2026-06-03 18:33 – Updated: 2026-06-09 21:32
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
gpio: cdev: Avoid NULL dereference in linehandle_create()
In linehandle_create(), there is a statement like this: retain_and_null_ptr(lh);
Soon after, there is a debug printout that dereferences "lh", which will crash things.
Avoid the crash by using handlereq.lines, which is the same value.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-46258"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-03T18:16:26Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: cdev: Avoid NULL dereference in linehandle_create()\n\nIn linehandle_create(), there is a statement like this:\n retain_and_null_ptr(lh);\n\nSoon after, there is a debug printout that dereferences \"lh\", which\nwill crash things.\n\nAvoid the crash by using handlereq.lines, which is the same value.",
"id": "GHSA-xf52-gg4r-hj5f",
"modified": "2026-06-09T21:32:21Z",
"published": "2026-06-03T18:33:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46258"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6af6be278e3ba2ffb6af5b796c89dfb3f5d9063e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/87b9d7a4cfbed5f42af440372026270af997c766"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XF63-228H-QHCH
Vulnerability from github – Published: 2024-02-26 18:30 – Updated: 2024-04-17 18:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
Revert "kobject: Remove redundant checks for whether ktype is NULL"
This reverts commit 1b28cb81dab7c1eedc6034206f4e8d644046ad31.
It is reported to cause problems, so revert it for now until the root cause can be found.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-26604"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-26T16:28:00Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"kobject: Remove redundant checks for whether ktype is NULL\"\n\nThis reverts commit 1b28cb81dab7c1eedc6034206f4e8d644046ad31.\n\nIt is reported to cause problems, so revert it for now until the root\ncause can be found.",
"id": "GHSA-xf63-228h-qhch",
"modified": "2024-04-17T18:31:31Z",
"published": "2024-02-26T18:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26604"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3ca8fbabcceb8bfe44f7f50640092fd8f1de375c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7f414d306320f837cc3df96cf52161cb8290fb1b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b746d52ce7bcac325a2fa264216ead85b7fbbfaa"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZOU3745CWCDZ7EMKMXB2OEEIB5Q3IWM"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XFHG-9PJG-XG7G
Vulnerability from github – Published: 2022-08-26 00:03 – Updated: 2024-11-18 23:03
VLAI
Summary
VTK NULL pointer dereference vulnerability
Details
There is a NULL pointer dereference vulnerability in VTK, and it lies in IO/Infovis/vtkXMLTreeReader.cxx. The vendor didn't check the return value of libxml2 API 'xmlDocGetRootElement', and try to dereference it. It is unsafe as the return value can be NULL and that NULL pointer dereference may crash the application.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "vtk"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-42521"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2022-09-16T18:47:42Z",
"nvd_published_at": "2022-08-25T18:15:00Z",
"severity": "HIGH"
},
"details": "There is a NULL pointer dereference vulnerability in VTK, and it lies in IO/Infovis/vtkXMLTreeReader.cxx. The vendor didn\u0027t check the return value of libxml2 API \u0027xmlDocGetRootElement\u0027, and try to dereference it. It is unsafe as the return value can be NULL and that NULL pointer dereference may crash the application.",
"id": "GHSA-xfhg-9pjg-xg7g",
"modified": "2024-11-18T23:03:45Z",
"published": "2022-08-26T00:03:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42521"
},
{
"type": "WEB",
"url": "https://discourse.vtk.org/t/vtk-9-2-5-is-out/10549"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/vtk/PYSEC-2022-255.yaml"
},
{
"type": "PACKAGE",
"url": "https://gitlab.kitware.com/vtk/vtk"
},
{
"type": "WEB",
"url": "https://gitlab.kitware.com/vtk/vtk/issues/17818"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PCTMSAAVP4BW2HTZLDWMGKZ2WEC5OFLK"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "VTK NULL pointer dereference vulnerability"
}
Mitigation MIT-56
Implementation
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Requirements
Select a programming language that is not susceptible to these issues.
Mitigation
Implementation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Architecture and Design
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Implementation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.