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.
6334 vulnerabilities reference this CWE, most recent first.
GHSA-828C-5J5Q-VRJQ
Vulnerability from github – Published: 2022-09-16 22:01 – Updated: 2022-09-19 19:04
VLAI
Summary
TensorFlow vulnerable to null-dereference in `mlir::tfg::GraphDefImporter::ConvertNodeDef`
Details
Impact
When mlir::tfg::GraphDefImporter::ConvertNodeDef tries to convert NodeDefs without an op name, it crashes.
Status GraphDefImporter::ConvertNodeDef(OpBuilder &builder, ConversionState &s,
const NodeDef &node) {
VLOG(4) << "Importing: " << node.name();
OperationState state(ConvertLocation(node), absl::StrCat("tfg.", node.op()));
// The GraphImporter does light shape inference, but here we will defer all of
// that to the shape inference pass.
const OpDef *op_def;
const OpRegistrationData *op_reg_data = nullptr;
if ((op_reg_data = registry_.LookUp(node.op()))) {
op_def = &op_reg_data->op_def;
} else {
auto it = function_op_defs_.find(node.op());
if (it == function_op_defs_.end())
return InvalidArgument("Unable to find OpDef for ", node.op());
op_def = it->second;
}
node.op().empty() cannot be empty.
Patches
We have patched the issue in GitHub commit a0f0b9a21c9270930457095092f558fbad4c03e5.
The fix will be included in TensorFlow 2.10.0. We will also cherrypick this commit on TensorFlow 2.9.1, TensorFlow 2.8.1, and TensorFlow 2.7.2, 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.
Severity
5.9 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.0"
},
{
"fixed": "2.9.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.0"
},
{
"fixed": "2.9.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.8.0"
},
{
"fixed": "2.8.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.0"
},
{
"fixed": "2.9.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-36013"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2022-09-16T22:01:12Z",
"nvd_published_at": "2022-09-16T23:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\nWhen [`mlir::tfg::GraphDefImporter::ConvertNodeDef`](https://github.com/tensorflow/tensorflow/blob/master/tensorflow/core/ir/importexport/graphdef_import.cc) tries to convert NodeDefs without an op name, it crashes.\n```cpp\nStatus GraphDefImporter::ConvertNodeDef(OpBuilder \u0026builder, ConversionState \u0026s,\n const NodeDef \u0026node) {\n VLOG(4) \u003c\u003c \"Importing: \" \u003c\u003c node.name();\n OperationState state(ConvertLocation(node), absl::StrCat(\"tfg.\", node.op()));\n\n // The GraphImporter does light shape inference, but here we will defer all of\n // that to the shape inference pass.\n const OpDef *op_def;\n const OpRegistrationData *op_reg_data = nullptr;\n if ((op_reg_data = registry_.LookUp(node.op()))) {\n op_def = \u0026op_reg_data-\u003eop_def;\n } else {\n auto it = function_op_defs_.find(node.op());\n if (it == function_op_defs_.end())\n return InvalidArgument(\"Unable to find OpDef for \", node.op());\n op_def = it-\u003esecond;\n }\n```\n`node.op().empty()` cannot be empty.\n\n\n### Patches\nWe have patched the issue in GitHub commit [a0f0b9a21c9270930457095092f558fbad4c03e5](https://github.com/tensorflow/tensorflow/commit/a0f0b9a21c9270930457095092f558fbad4c03e5).\n\nThe fix will be included in TensorFlow 2.10.0. We will also cherrypick this commit on TensorFlow 2.9.1, TensorFlow 2.8.1, and TensorFlow 2.7.2, as these are also affected and still in supported range.\n\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.",
"id": "GHSA-828c-5j5q-vrjq",
"modified": "2022-09-19T19:04:11Z",
"published": "2022-09-16T22:01:12Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-828c-5j5q-vrjq"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36013"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/a0f0b9a21c9270930457095092f558fbad4c03e5"
},
{
"type": "PACKAGE",
"url": "https://github.com/tensorflow/tensorflow"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/blob/master/tensorflow/core/ir/importexport/graphdef_import.cc"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/releases/tag/v2.10.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "TensorFlow vulnerable to null-dereference in `mlir::tfg::GraphDefImporter::ConvertNodeDef`"
}
GHSA-828X-QC2P-WPRQ
Vulnerability from github – Published: 2021-05-21 14:26 – Updated: 2024-10-31 20:56
VLAI
Summary
Undefined behavior in `MaxPool3DGradGrad`
Details
Impact
The implementation of tf.raw_ops.MaxPool3DGradGrad exhibits undefined behavior by dereferencing null pointers backing attacker-supplied empty tensors:
import tensorflow as tf
orig_input = tf.constant([0.0], shape=[1, 1, 1, 1, 1], dtype=tf.float32)
orig_output = tf.constant([0.0], shape=[1, 1, 1, 1, 1], dtype=tf.float32)
grad = tf.constant([], shape=[0, 0, 0, 0, 0], dtype=tf.float32)
ksize = [1, 1, 1, 1, 1]
strides = [1, 1, 1, 1, 1]
padding = "SAME"
tf.raw_ops.MaxPool3DGradGrad(
orig_input=orig_input, orig_output=orig_output, grad=grad, ksize=ksize,
strides=strides, padding=padding)
The implementation fails to validate that the 3 tensor inputs are not empty. If any of them is empty, then accessing the elements in the tensor results in dereferencing a null pointer.
Patches
We have patched the issue in GitHub commit a3d9f9be9ac2296615644061b40cefcee341dcc4.
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-2021-29574"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2021-05-18T18:34:21Z",
"nvd_published_at": "2021-05-14T20:15:00Z",
"severity": "LOW"
},
"details": "### Impact\nThe implementation of `tf.raw_ops.MaxPool3DGradGrad` exhibits undefined behavior by dereferencing null pointers backing attacker-supplied empty tensors:\n\n```python\nimport tensorflow as tf\n\norig_input = tf.constant([0.0], shape=[1, 1, 1, 1, 1], dtype=tf.float32)\norig_output = tf.constant([0.0], shape=[1, 1, 1, 1, 1], dtype=tf.float32)\ngrad = tf.constant([], shape=[0, 0, 0, 0, 0], dtype=tf.float32)\nksize = [1, 1, 1, 1, 1]\nstrides = [1, 1, 1, 1, 1]\npadding = \"SAME\"\n\ntf.raw_ops.MaxPool3DGradGrad(\n orig_input=orig_input, orig_output=orig_output, grad=grad, ksize=ksize,\n strides=strides, padding=padding)\n```\n\nThe [implementation](https://github.com/tensorflow/tensorflow/blob/72fe792967e7fd25234342068806707bbc116618/tensorflow/core/kernels/pooling_ops_3d.cc#L679-L703) fails to validate that the 3 tensor inputs are not empty. If any of them is empty, then accessing the elements in the tensor results in dereferencing a null pointer.\n\n### Patches\nWe have patched the issue in GitHub commit [a3d9f9be9ac2296615644061b40cefcee341dcc4](https://github.com/tensorflow/tensorflow/commit/a3d9f9be9ac2296615644061b40cefcee341dcc4).\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-828x-qc2p-wprq",
"modified": "2024-10-31T20:56:37Z",
"published": "2021-05-21T14:26:10Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-828x-qc2p-wprq"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29574"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/a3d9f9be9ac2296615644061b40cefcee341dcc4"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-502.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-700.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-211.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": "Undefined behavior in `MaxPool3DGradGrad`"
}
GHSA-8296-4XRF-2XW7
Vulnerability from github – Published: 2024-05-20 15:31 – Updated: 2025-03-27 21:31
VLAI
Details
taurusxin ncmdump v1.3.2 was discovered to contain a segmentation violation via the NeteaseCrypt::FixMetadata() function at /src/ncmcrypt.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted .ncm file.
Severity
5.0 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-34952"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-20T14:15:09Z",
"severity": "MODERATE"
},
"details": "taurusxin ncmdump v1.3.2 was discovered to contain a segmentation violation via the NeteaseCrypt::FixMetadata() function at /src/ncmcrypt.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted .ncm file.",
"id": "GHSA-8296-4xrf-2xw7",
"modified": "2025-03-27T21:31:14Z",
"published": "2024-05-20T15:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34952"
},
{
"type": "WEB",
"url": "https://github.com/taurusxin/ncmdump/issues/18"
},
{
"type": "WEB",
"url": "https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/dos_FixMetadata.assets/debug-coredump.png"
},
{
"type": "WEB",
"url": "https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/dos_FixMetadata.md"
},
{
"type": "WEB",
"url": "https://github.com/Helson-S/FuzzyTesting/blob/master/ncmdump/dos_FixMetadata/poc/I1DWE0~U"
},
{
"type": "WEB",
"url": "https://github.com/Helson-S/FuzzyTesting/tree/master/ncmdump/dos_FixMetadata"
},
{
"type": "WEB",
"url": "https://github.com/Helson-S/FuzzyTesting/tree/master/ncmdump/dos_FixMetadata/poc"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-82PW-RH3V-PR35
Vulnerability from github – Published: 2025-03-30 21:30 – Updated: 2025-03-30 21:30
VLAI
Details
A vulnerability was found in TRENDnet TEW-410APB 1.3.06b. It has been rated as problematic. Affected by this issue is the function sub_4019A0 of the file /usr/sbin/httpd of the component HTTP Request Handler. The manipulation leads to null pointer dereference. The attack needs to be initiated within the local network. 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
{
"affected": [],
"aliases": [
"CVE-2025-2959"
],
"database_specific": {
"cwe_ids": [
"CWE-404",
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-30T21:15:31Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in TRENDnet TEW-410APB 1.3.06b. It has been rated as problematic. Affected by this issue is the function sub_4019A0 of the file /usr/sbin/httpd of the component HTTP Request Handler. The manipulation leads to null pointer dereference. The attack needs to be initiated within the local network. 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-82pw-rh3v-pr35",
"modified": "2025-03-30T21:30:27Z",
"published": "2025-03-30T21:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2959"
},
{
"type": "WEB",
"url": "https://docs.google.com/document/d/1PcJZQ364MQxz1eUt6PLnWIQYTLNuJ5_3/edit#heading=h.gjdgxs"
},
{
"type": "WEB",
"url": "https://drive.google.com/file/d/1idRNkvFHyh5vOxw2VIs2wcwdVOVLuqkG/view?usp=drive_link"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.302012"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.302012"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.521725"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/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-82W2-X7HF-5H8R
Vulnerability from github – Published: 2026-03-24 15:30 – Updated: 2026-06-30 03:35
VLAI
Details
When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when (1) CRAM-MD5 or APOP authentication is enabled, and (2) the authentication server permits retry by returning the Auth-Wait response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
{
"affected": [],
"aliases": [
"CVE-2026-27651"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-24T15:16:32Z",
"severity": "HIGH"
},
"details": "When the ngx_mail_auth_http_module\u00a0module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when (1) CRAM-MD5 or APOP authentication is enabled, and (2) the authentication server permits retry by returning the Auth-Wait response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
"id": "GHSA-82w2-x7hf-5h8r",
"modified": "2026-06-30T03:35:59Z",
"published": "2026-03-24T15:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27651"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27651.json"
},
{
"type": "WEB",
"url": "https://my.f5.com/manage/s/article/K000160383"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450791"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-27651"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8346"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7343"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7002"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6923"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6907"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6906"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:15966"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:15945"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:15943"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:15942"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:14836"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:13839"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:13680"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:13634"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:10065"
}
],
"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/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-82W6-HJXQ-QJM2
Vulnerability from github – Published: 2025-02-27 21:32 – Updated: 2025-03-05 15:30
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
firewire: test: Fix potential null dereference in firewire kunit test
kunit_kzalloc() may return a NULL pointer, dereferencing it without NULL check may lead to NULL dereference. Add a NULL check for test_state.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-21798"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-27T20:16:02Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: test: Fix potential null dereference in firewire kunit test\n\nkunit_kzalloc() may return a NULL pointer, dereferencing it without\nNULL check may lead to NULL dereference.\nAdd a NULL check for test_state.",
"id": "GHSA-82w6-hjxq-qjm2",
"modified": "2025-03-05T15:30:51Z",
"published": "2025-02-27T21:32:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21798"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/352fafe97784e81a10a7c74bd508f71a19b53c2a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/70fcb25472d90dd3b87cbee74b9eb68670b0c7b8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c6896bf4c611c3dd126f3e03685f2360a18b3d6f"
}
],
"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-82XM-WM87-5FC2
Vulnerability from github – Published: 2025-07-04 15:31 – Updated: 2026-07-14 15:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
net: clear the dst when changing skb protocol
A not-so-careful NAT46 BPF program can crash the kernel if it indiscriminately flips ingress packets from v4 to v6:
BUG: kernel NULL pointer dereference, address: 0000000000000000 ip6_rcv_core (net/ipv6/ip6_input.c:190:20) ipv6_rcv (net/ipv6/ip6_input.c:306:8) process_backlog (net/core/dev.c:6186:4) napi_poll (net/core/dev.c:6906:9) net_rx_action (net/core/dev.c:7028:13) do_softirq (kernel/softirq.c:462:3) netif_rx (net/core/dev.c:5326:3) dev_loopback_xmit (net/core/dev.c:4015:2) ip_mc_finish_output (net/ipv4/ip_output.c:363:8) NF_HOOK (./include/linux/netfilter.h:314:9) ip_mc_output (net/ipv4/ip_output.c:400:5) dst_output (./include/net/dst.h:459:9) ip_local_out (net/ipv4/ip_output.c:130:9) ip_send_skb (net/ipv4/ip_output.c:1496:8) udp_send_skb (net/ipv4/udp.c:1040:8) udp_sendmsg (net/ipv4/udp.c:1328:10)
The output interface has a 4->6 program attached at ingress. We try to loop the multicast skb back to the sending socket. Ingress BPF runs as part of netif_rx(), pushes a valid v6 hdr and changes skb->protocol to v6. We enter ip6_rcv_core which tries to use skb_dst(). But the dst is still an IPv4 one left after IPv4 mcast output.
Clear the dst in all BPF helpers which change the protocol. Try to preserve metadata dsts, those may carry non-routing metadata.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-38192"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-04T14:15:26Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: clear the dst when changing skb protocol\n\nA not-so-careful NAT46 BPF program can crash the kernel\nif it indiscriminately flips ingress packets from v4 to v6:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n ip6_rcv_core (net/ipv6/ip6_input.c:190:20)\n ipv6_rcv (net/ipv6/ip6_input.c:306:8)\n process_backlog (net/core/dev.c:6186:4)\n napi_poll (net/core/dev.c:6906:9)\n net_rx_action (net/core/dev.c:7028:13)\n do_softirq (kernel/softirq.c:462:3)\n netif_rx (net/core/dev.c:5326:3)\n dev_loopback_xmit (net/core/dev.c:4015:2)\n ip_mc_finish_output (net/ipv4/ip_output.c:363:8)\n NF_HOOK (./include/linux/netfilter.h:314:9)\n ip_mc_output (net/ipv4/ip_output.c:400:5)\n dst_output (./include/net/dst.h:459:9)\n ip_local_out (net/ipv4/ip_output.c:130:9)\n ip_send_skb (net/ipv4/ip_output.c:1496:8)\n udp_send_skb (net/ipv4/udp.c:1040:8)\n udp_sendmsg (net/ipv4/udp.c:1328:10)\n\nThe output interface has a 4-\u003e6 program attached at ingress.\nWe try to loop the multicast skb back to the sending socket.\nIngress BPF runs as part of netif_rx(), pushes a valid v6 hdr\nand changes skb-\u003eprotocol to v6. We enter ip6_rcv_core which\ntries to use skb_dst(). But the dst is still an IPv4 one left\nafter IPv4 mcast output.\n\nClear the dst in all BPF helpers which change the protocol.\nTry to preserve metadata dsts, those may carry non-routing\nmetadata.",
"id": "GHSA-82xm-wm87-5fc2",
"modified": "2026-07-14T15:31:25Z",
"published": "2025-07-04T15:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38192"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2a3ad42a57b43145839f2f233fb562247658a6d9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/98b1d8dc9a3170b2614f1e8c93854e75cdd83980"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a046f183d21ab5ace5a96ece4cf9873a42f003a7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ba9db6f907ac02215e30128770f85fbd7db2fcf9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bfa4d86e130a09f67607482e988313430e38f6c4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e9994e7b9f7bbb882d13c8191731649249150d21"
}
],
"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-8332-M7C6-G7C2
Vulnerability from github – Published: 2024-08-21 09:31 – Updated: 2024-09-12 15:32
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix potential NULL dereference
Fix potential NULL dereference, in the case when "man", the resource manager might be NULL, when/if we print debug information.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-52908"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-21T07:15:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix potential NULL dereference\n\nFix potential NULL dereference, in the case when \"man\", the resource manager\nmight be NULL, when/if we print debug information.",
"id": "GHSA-8332-m7c6-g7c2",
"modified": "2024-09-12T15:32:59Z",
"published": "2024-08-21T09:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52908"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0be7ed8e7eb15282b5d0f6fdfea884db594ea9bf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f2faf0699af78968a27ca154bf76e94247f8c471"
}
],
"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-8334-Q57Q-JPP2
Vulnerability from github – Published: 2022-05-14 00:54 – Updated: 2022-05-14 00:54
VLAI
Details
Poppler before 0.70.0 has a NULL pointer dereference in _poppler_attachment_new when called from poppler_annot_file_attachment_get_attachment.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2018-19149"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-11-10T19:29:00Z",
"severity": "MODERATE"
},
"details": "Poppler before 0.70.0 has a NULL pointer dereference in _poppler_attachment_new when called from poppler_annot_file_attachment_get_attachment.",
"id": "GHSA-8334-q57q-jpp2",
"modified": "2022-05-14T00:54:45Z",
"published": "2022-05-14T00:54:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19149"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2022"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/poppler/poppler/issues/664"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201904-04"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3837-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3837-2"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106031"
}
],
"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-8348-VF2Q-44XC
Vulnerability from github – Published: 2022-05-17 01:22 – Updated: 2022-05-17 01:22
VLAI
Details
net/ipv4/route.c in the Linux kernel 4.13-rc1 through 4.13-rc6 is too late to check for a NULL fi field when RTM_F_FIB_MATCH is set, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via crafted system calls. NOTE: this does not affect any stable release.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2017-13686"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-08-24T22:29:00Z",
"severity": "HIGH"
},
"details": "net/ipv4/route.c in the Linux kernel 4.13-rc1 through 4.13-rc6 is too late to check for a NULL fi field when RTM_F_FIB_MATCH is set, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via crafted system calls. NOTE: this does not affect any stable release.",
"id": "GHSA-8348-vf2q-44xc",
"modified": "2022-05-17T01:22:36Z",
"published": "2022-05-17T01:22:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13686"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/bc3aae2bbac46dd894c89db5d5e98f7f0ef9e205"
},
{
"type": "WEB",
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bc3aae2bbac46dd894c89db5d5e98f7f0ef9e205"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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.