ghsa-rmx7-cw76-79w4
Vulnerability from github
Published
2024-05-01 06:31
Modified
2024-11-06 18:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf

If ->ProtocolId is SMB2_TRANSFORM_PROTO_NUM, smb2 request size validation could be skipped. if request size is smaller than sizeof(struct smb2_query_info_req), slab-out-of-bounds read can happen in smb2_allocate_rsp_buf(). This patch allocate response buffer after decrypting transform request. smb3_decrypt_req() will validate transform request size and avoid slab-out-of-bound in smb2_allocate_rsp_buf().

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{
   affected: [],
   aliases: [
      "CVE-2024-26980",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-125",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-05-01T06:15:15Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix slab-out-of-bounds in smb2_allocate_rsp_buf\n\nIf ->ProtocolId is SMB2_TRANSFORM_PROTO_NUM, smb2 request size\nvalidation could be skipped. if request size is smaller than\nsizeof(struct smb2_query_info_req), slab-out-of-bounds read can happen in\nsmb2_allocate_rsp_buf(). This patch allocate response buffer after\ndecrypting transform request. smb3_decrypt_req() will validate transform\nrequest size and avoid slab-out-of-bound in smb2_allocate_rsp_buf().",
   id: "GHSA-rmx7-cw76-79w4",
   modified: "2024-11-06T18:31:04Z",
   published: "2024-05-01T06:31:42Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-26980",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/0977f89722eceba165700ea384f075143f012085",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/3160d9734453a40db248487f8204830879c207f1",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/b80ba648714e6d790d69610cf14656be222d0248",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/c119f4ede3fa90a9463f50831761c28f989bfb20",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/da21401372607c49972ea87a6edaafb36a17c325",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY",
      },
      {
         type: "WEB",
         url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW",
      },
   ],
   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",
      },
   ],
}


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