Vulnerability-Lookup

GHSA-2J83-334M-G9W4

Vulnerability from github – Published: 2023-11-21 21:30 – Updated: 2023-11-21 21:30

Details

A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. An unprivileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.

Severity

7.0 (High)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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  "affected": [],
  "aliases": [
    "CVE-2023-6238"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-11-21T21:15:09Z",
    "severity": "HIGH"
  },
  "details": "A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. An unprivileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.",
  "id": "GHSA-2j83-334m-g9w4",
  "modified": "2023-11-21T21:30:24Z",
  "published": "2023-11-21T21:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6238"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-6238"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2250834"
    }
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  "schema_version": "1.4.0",
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    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-6238 (GCVE-0-2023-6238)

Vulnerability from cvelistv5 – Published: 2023-11-21 20:21 – Updated: 2024-10-17 18:01

Title

Kernel: nvme: memory corruption via unprivileged user passthrough

Summary

A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.

Severity

6.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

redhat

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2023-6238	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2250834	issue-trackingx_refsource_REDHAT

Impacted products

9 products

Vendor	Product	Version
n/a	kernel
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Fedora	Fedora

Date Public

2023-10-13 00:00

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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GHSA-2J83-334M-G9W4

CVE-2023-6238 (GCVE-0-2023-6238)

Tags

Sightings

Nomenclature