ghsa-j7rq-227r-98j4
Vulnerability from github
Published
2024-05-20 12:30
Modified
2024-06-26 00:31
Details
In the Linux kernel, the following vulnerability has been resolved:
netfilter: complete validation of user input
In my recent commit, I missed that do_replace() handlers use copy_from_sockptr() (which I fixed), followed by unsafe copy_from_sockptr_offset() calls.
In all functions, we can perform the @optlen validation before even calling xt_alloc_table_info() with the following check:
if ((u64)optlen < (u64)tmp.size + sizeof(tmp)) return -EINVAL;
{
"affected": [],
"aliases": [
"CVE-2024-35962"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-20T10:15:11Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: complete validation of user input\n\nIn my recent commit, I missed that do_replace() handlers\nuse copy_from_sockptr() (which I fixed), followed\nby unsafe copy_from_sockptr_offset() calls.\n\nIn all functions, we can perform the @optlen validation\nbefore even calling xt_alloc_table_info() with the following\ncheck:\n\nif ((u64)optlen \u003c (u64)tmp.size + sizeof(tmp))\n return -EINVAL;",
"id": "GHSA-j7rq-227r-98j4",
"modified": "2024-06-26T00:31:43Z",
"published": "2024-05-20T12:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35962"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/562b7245131f6e9f1d280c8b5a8750f03edfc05c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/65acf6e0501ac8880a4f73980d01b5d27648b956"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/89242d9584c342cb83311b598d9e6b82572eadf8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/97dab36e57c64106e1c8ebd66cbf0d2d1e52d6b7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c760089aa98289b4b88a7ff5a62dd92845adf223"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cf4bc359b76144a3dd55d7c09464ef4c5f2b2b05"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
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