GHSA-4XQQ-Q6WP-W8H4

Vulnerability from github – Published: 2021-12-23 00:01 – Updated: 2024-03-25 03:31
VLAI?
Details

A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.

Severity ?
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2021-44733"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-22T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.",
  "id": "GHSA-4xqq-q6wp-w8h4",
  "modified": "2024-03-25T03:31:43Z",
  "published": "2021-12-23T00:01:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44733"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd0743f1d9ea76931510ed150334d571fbab49d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/tee/tee_shm.c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pjlantz/optee-qemu/blob/main/README.md"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander%40linaro.org"
    },
    {
      "type": "WEB",
      "url": "https://lore.kernel.org/lkml/20211215092501.1861229-1-jens.wiklander@linaro.org"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220114-0003"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5096"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.