github - ghsa-2v9v-6h75-597v

ghsa-2v9v-6h75-597v

Vulnerability from github

Published

2024-02-28 09:30

Modified

2024-02-28 09:30

Details

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

drm/amd/display: Fix off by one in hdmi_14_process_transaction()

The hdcp_i2c_offsets[] array did not have an entry for HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE so it led to an off by one read overflow. I added an entry and copied the 0x0 value for the offset from similar code in drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c.

I also declared several of these arrays as having HDCP_MESSAGE_ID_MAX entries. This doesn't change the code, but it's just a belt and suspenders approach to try future proof the code.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47046"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-28T09:15:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix off by one in hdmi_14_process_transaction()\n\nThe hdcp_i2c_offsets[] array did not have an entry for\nHDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE so it led to an off by one\nread overflow.  I added an entry and copied the 0x0 value for the offset\nfrom similar code in drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c.\n\nI also declared several of these arrays as having HDCP_MESSAGE_ID_MAX\nentries.  This doesn\u0027t change the code, but it\u0027s just a belt and\nsuspenders approach to try future proof the code.",
  "id": "GHSA-2v9v-6h75-597v",
  "modified": "2024-02-28T09:30:38Z",
  "published": "2024-02-28T09:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47046"
    },
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}

cve-2021-47046

Vulnerability from cvelistv5

Published

2024-02-28 08:13

Modified

2024-11-04 11:58

Severity ?

Summary

drm/amd/display: Fix off by one in hdmi_14_process_transaction()

References

▼	URL	Tags
	https://git.kernel.org/stable/c/403c4528e5887af3deb9838cb77a557631d1e138
	https://git.kernel.org/stable/c/6a58310d5d1e5b02d0fc9b393ba540c9367bced5
	https://git.kernel.org/stable/c/080bd41d6478a64edf96704fddcda52b1fd5fed7
	https://git.kernel.org/stable/c/8e6fafd5a22e7a2eb216f5510db7aab54cc545c1

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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