CVE-2020-12417 (GCVE-0-2020-12417)

Vulnerability from cvelistv5 – Published: 2020-07-09 14:39 – Updated: 2024-08-04 11:56
VLAI
Summary
Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects Firefox on ARM64 platforms.* This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • Memory corruption due to missing sign-extension for ValueTags on ARM64
Assigner
mozilla CNA under the mitre root
CNA scorecard E 38/100 over 546 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Mozilla Firefox ESR Affected: unspecified , < 68.10 (custom)
guessed Create a notification for this product.
Mozilla Firefox Affected: unspecified , < 78 (custom)
guessed Create a notification for this product.
Mozilla Thunderbird Affected: unspecified , < 68.10.0 (custom)
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          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.mozilla.org/security/advisories/mfsa2020-26/"
          }
        ],
        "sourceIdentifier": "security@mozilla.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-617"
              },
              {
                "lang": "en",
                "value": "CWE-681"
              },
              {
                "lang": "en",
                "value": "CWE-787"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T16:55:46+00:00",
      "cve": "CVE-2020-12417",
      "id": "CVE-2020-12417",
      "initial_release_date": "2020-06-30T00:00:00+00:00",
      "product_status:fixed": "138",
      "product_status:known_not_affected": "6",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Mozilla: Memory corruption due to missing sign-extension for ValueTags on ARM64",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-12417.json",
      "version": "3"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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