CVE-2021-30846 (GCVE-0-2021-30846)

Vulnerability from cvelistv5 – Published: 2021-10-19 13:11 – Updated: 2024-08-03 22:48
VLAI
Summary
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • Processing maliciously crafted web content may lead to arbitrary code execution
Assigner
References
Impacted products
Vendor Product Version
Apple iOS and iPadOS Affected: unspecified , < 14.8 (custom)
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Apple iOS and iPadOS Affected: unspecified , < 15 (custom)
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Apple tvOS Affected: unspecified , < 15 (custom)
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Apple Safari Affected: unspecified , < 15 (custom)
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Apple watchOS Affected: unspecified , < 8 (custom)
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.\"}, {\"lang\": \"es\", \"value\": \"Se abord\\u00f3 un problema de corrupci\\u00f3n de memoria con un manejo de memoria mejorado. Este problema es corregido en iOS versi\\u00f3n 14.8 y iPadOS versi\\u00f3n 14.8, Safari versi\\u00f3n 15, tvOS versi\\u00f3n 15, iOS versi\\u00f3n 15 y iPadOS versi\\u00f3n 15, watchOS versi\\u00f3n 8. El procesamiento de contenido web maliciosamente dise\\u00f1ado puede conllevar la ejecuci\\u00f3n de c\\u00f3digo arbitrario\"}]",
      "id": "CVE-2021-30846",
      "lastModified": "2024-11-21T06:04:49.840",
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      "published": "2021-10-19T14:15:09.617",
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      "sourceIdentifier": "product-security@apple.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-30846\",\"sourceIdentifier\":\"product-security@apple.com\",\"published\":\"2021-10-19T14:15:09.617\",\"lastModified\":\"2024-11-21T06:04:49.840\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.\"},{\"lang\":\"es\",\"value\":\"Se abord\u00f3 un problema de corrupci\u00f3n de memoria con un manejo de memoria mejorado. Este problema es corregido en iOS versi\u00f3n 14.8 y iPadOS versi\u00f3n 14.8, Safari versi\u00f3n 15, tvOS versi\u00f3n 15, iOS versi\u00f3n 15 y iPadOS versi\u00f3n 15, watchOS versi\u00f3n 8. 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T15:54:17+00:00",
      "cve": "CVE-2021-30846",
      "id": "CVE-2021-30846",
      "initial_release_date": "2021-10-26T00:00:00+00:00",
      "product_status:fixed": "70",
      "product_status:known_affected": "9",
      "product_status:known_not_affected": "5",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "webkitgtk: Memory corruption issue leading to arbitrary code execution",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-30846.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.