GHSA-RMVF-WRPJ-7C43

Vulnerability from github – Published: 2024-02-21 18:31 – Updated: 2024-10-31 21:31
VLAI?
Details

Trusted Firmware-A (TF-A) before 2.10 has a potential read out-of-bounds in the SDEI service. The input parameter passed in register x1 is not validated well enough in the function sdei_interrupt_bind. The parameter is passed to a call to plat_ic_get_interrupt_type. It can be any arbitrary value passing checks in the function plat_ic_is_sgi. A compromised Normal World (Linux kernel) can enable a root-privileged attacker to issue arbitrary SMC calls. Using this primitive, he can control the content of registers x0 through x6, which are used to send parameters to TF-A. Out-of-bounds addresses can be read in the context of TF-A (EL3). Because the read value is never returned to non-secure memory or in registers, no leak is possible. An attacker can still crash TF-A, however.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-49100"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-21T16:15:49Z",
    "severity": "MODERATE"
  },
  "details": "Trusted Firmware-A (TF-A) before 2.10 has a potential read out-of-bounds in the SDEI service. The input parameter passed in register x1 is not validated well enough in the function sdei_interrupt_bind. The parameter is passed to a call to plat_ic_get_interrupt_type. It can be any arbitrary value passing checks in the function plat_ic_is_sgi. A compromised Normal World (Linux kernel) can enable a root-privileged attacker to issue arbitrary SMC calls. Using this primitive, he can control the content of registers x0 through x6, which are used to send parameters to TF-A. Out-of-bounds addresses can be read in the context of TF-A (EL3). Because the read value is never returned to non-secure memory or in registers, no leak is possible. An attacker can still crash TF-A, however.",
  "id": "GHSA-rmvf-wrpj-7c43",
  "modified": "2024-10-31T21:31:44Z",
  "published": "2024-02-21T18:31:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49100"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L708"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L714"
    },
    {
      "type": "WEB",
      "url": "https://trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisory-tfv-11.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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