github - ghsa-mv5h-82v3-mq2x

GHSA-MV5H-82V3-MQ2X

Vulnerability from github – Published: 2022-07-07 00:00 – Updated: 2022-07-16 00:00

Details

A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

Severity ?

4.5 (Medium)


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

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  "affected": [],
  "aliases": [
    "CVE-2021-3696"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-06T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it\u0027s very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.",
  "id": "GHSA-mv5h-82v3-mq2x",
  "modified": "2022-07-16T00:00:20Z",
  "published": "2022-07-07T00:00:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3696"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1991686"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202209-12"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220930-0001"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-3696 (GCVE-0-2021-3696)

Vulnerability from cvelistv5 – Published: 2022-07-06 15:06 – Updated: 2024-08-03 17:01

Summary

Severity ?

No CVSS data available.

CWE

CWE-787

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1991686	x_refsource_MISC
	https://security.gentoo.org/glsa/202209-12	vendor-advisoryx_refsource_GENTOO
	https://security.netapp.com/advisory/ntap-2022093…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	grub2	Affected: grub-2.06

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-MV5H-82V3-MQ2X

CVE-2021-3696 (GCVE-0-2021-3696)

Tags

Sightings

Nomenclature