github - ghsa-727r-ghq8-fgh9

ghsa-727r-ghq8-fgh9

Vulnerability from github

Published

2022-05-17 03:50

Modified

2022-05-17 03:50

Severity ?

5.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

** DISPUTED ** The AES-GCM specification in RFC 5084, as used in Android 5.x and 6.x, recommends 12 octets for the aes-ICVlen parameter field, which might make it easier for attackers to defeat a cryptographic protection mechanism and discover an authentication key via a crafted application, aka internal bug 26234568. NOTE: The vendor disputes the existence of this potential issue in Android, stating "This CVE was raised in error: it referred to the authentication tag size in GCM, whose default according to ASN.1 encoding (12 bytes) can lead to vulnerabilities. After careful consideration, it was decided that the insecure default value of 12 bytes was a default only for the encoding and not default anywhere else in Android, and hence no vulnerability existed."

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2016-2427"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-04-18T00:59:00Z",
    "severity": "MODERATE"
  },
  "details": "** DISPUTED ** The AES-GCM specification in RFC 5084, as used in Android 5.x and 6.x, recommends 12 octets for the aes-ICVlen parameter field, which might make it easier for attackers to defeat a cryptographic protection mechanism and discover an authentication key via a crafted application, aka internal bug 26234568.  NOTE: The vendor disputes the existence of this potential issue in Android, stating \"This CVE was raised in error: it referred to the authentication tag size in GCM, whose default according to ASN.1 encoding (12 bytes) can lead to vulnerabilities. After careful consideration, it was decided that the insecure default value of 12 bytes was a default only for the encoding and not default anywhere else in Android, and hence no vulnerability existed.\"",
  "id": "GHSA-727r-ghq8-fgh9",
  "modified": "2022-05-17T03:50:28Z",
  "published": "2022-05-17T03:50:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-2427"
    },
    {
      "type": "WEB",
      "url": "http://source.android.com/security/bulletin/2016-04-02.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2016-2427

Vulnerability from cvelistv5

Published

2016-04-18 00:00

Modified

2024-08-05 23:24

Severity ?

Summary

The AES-GCM specification in RFC 5084, as used in Android 5.x and 6.x, recommends 12 octets for the aes-ICVlen parameter field, which might make it easier for attackers to defeat a cryptographic protection mechanism and discover an authentication key via a crafted application, aka internal bug 26234568. NOTE: The vendor disputes the existence of this potential issue in Android, stating "This CVE was raised in error: it referred to the authentication tag size in GCM, whose default according to ASN.1 encoding (12 bytes) can lead to vulnerabilities. After careful consideration, it was decided that the insecure default value of 12 bytes was a default only for the encoding and not default anywhere else in Android, and hence no vulnerability existed.

References

▼	URL	Tags
	http://source.android.com/security/bulletin/2016-04-02.html	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

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        },
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          {
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              "x_transferred"
            ],
            "url": "http://source.android.com/security/bulletin/2016-04-02.html"
          }
        ],
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      }
    ],
    "cna": {
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          "vendor": "n/a",
          "versions": [
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            }
          ]
        }
      ],
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            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2016-08-08T01:57:01",
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      },
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          "url": "http://source.android.com/security/bulletin/2016-04-02.html"
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    "dateReserved": "2016-02-18T00:00:00",
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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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