ghsa-4h2m-3c33-9fw3
Vulnerability from github
Published
2024-06-19 15:30
Modified
2024-06-19 15:30
Details
In the Linux kernel, the following vulnerability has been resolved:
vduse: fix memory corruption in vduse_dev_ioctl()
The "config.offset" comes from the user. There needs to a check to prevent it being out of bounds. The "config.offset" and "dev->config_size" variables are both type u32. So if the offset if out of bounds then the "dev->config_size - config.offset" subtraction results in a very high u32 value. The out of bounds offset can result in memory corruption.
{
"affected": [],
"aliases": [
"CVE-2021-47605"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-19T15:15:55Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: fix memory corruption in vduse_dev_ioctl()\n\nThe \"config.offset\" comes from the user. There needs to a check to\nprevent it being out of bounds. The \"config.offset\" and\n\"dev-\u003econfig_size\" variables are both type u32. So if the offset if\nout of bounds then the \"dev-\u003econfig_size - config.offset\" subtraction\nresults in a very high u32 value. The out of bounds offset can result\nin memory corruption.",
"id": "GHSA-4h2m-3c33-9fw3",
"modified": "2024-06-19T15:30:55Z",
"published": "2024-06-19T15:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47605"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e6c67560b4341914bec32ec536e931c22062af65"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ff9f9c6e74848170fcb45c8403c80d661484c8c9"
}
],
"schema_version": "1.4.0",
"severity": []
}
Loading...