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CVE-2020-9844 (GCVE-0-2020-9844)

Vulnerability from cvelistv5 – Published: 2020-06-09 16:16 – Updated: 2024-08-04 10:43
VLAI
Summary
A double free issue was addressed with improved memory management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • A remote attacker may be able to cause unexpected system termination or corrupt kernel memory
Assigner
References
URL Tags
https://support.apple.com/HT211168 x_refsource_MISC
https://support.apple.com/HT211170 x_refsource_MISC
Impacted products
Vendor Product Version CPE status
Apple iOS Affected: unspecified , < iOS 13.5 and iPadOS 13.5 (custom)
guessed Create a notification for this product.
Apple macOS Affected: unspecified , < macOS Catalina 10.15.5 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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Advisory\"]},{\"url\":\"https://support.apple.com/HT211170\",\"source\":\"product-security@apple.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/HT211168\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://support.apple.com/HT211170\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2025-05-22T16:55:56+00:00",
      "cve": "CVE-2020-9844",
      "id": "CVE-2020-9844",
      "initial_release_date": "2020-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2020-9844",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-9844.json",
      "version": "3"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.