github - ghsa-7xj8-cwpp-wfwj

ghsa-7xj8-cwpp-wfwj

Vulnerability from github

Published

2022-05-24 17:01

Modified

2023-02-24 21:30

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

The Linux kernel through 5.3.13 has a start_offset+size Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allows local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-18675"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-11-25T14:15:00Z",
    "severity": "HIGH"
  },
  "details": "The Linux kernel through 5.3.13 has a start_offset+size Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allows local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation.",
  "id": "GHSA-7xj8-cwpp-wfwj",
  "modified": "2023-02-24T21:30:20Z",
  "published": "2022-05-24T17:01:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18675"
    },
    {
      "type": "WEB",
      "url": "https://deshal3v.github.io/blog/kernel-research/mmap_exploitation"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20200103-0001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2019-18675 (GCVE-0-2019-18675)

Vulnerability from cvelistv5

Published

2019-11-25 13:44

Modified

2024-08-05 01:54

Severity ?

CWE

n/a

Summary

The Linux kernel through 5.3.13 has a start_offset+size Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allows local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation.

References

►

URL

Tags

	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c	x_refsource_MISC
	https://deshal3v.github.io/blog/kernel-research/mmap_exploitation	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20200103-0001/	x_refsource_CONFIRM
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

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