GSD-2021-21057

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a null pointer dereference vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve denial of service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Aliases
Aliases
CVE-2021-21057
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{
  "GSD": {
    "alias": "CVE-2021-21057",
    "description": "Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a null pointer dereference vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve denial of service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
    "id": "GSD-2021-21057"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "aliases": [
        "CVE-2021-21057"
      ],
      "details": "Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a null pointer dereference vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve denial of service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
      "id": "GSD-2021-21057",
      "modified": "2023-12-13T01:23:11.098750Z",
      "schema_version": "1.4.0"
    }
  },
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        "DATE_PUBLIC": "2021-02-09T23:00:00.000Z",
        "ID": "CVE-2021-21057",
        "STATE": "PUBLIC",
        "TITLE": "Acrobat Reader DC Invalid Memory Read Due To An Uninitialized Pointer"
      },
      "affects": {
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            {
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                    "version": {
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                          "version_affected": "\u003c=",
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          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "None",
          "attackVector": "None",
          "availabilityImpact": "None",
          "baseScore": 6.6,
          "baseSeverity": "Medium",
          "confidentialityImpact": "None",
          "integrityImpact": "None",
          "privilegesRequired": "None",
          "scope": "None",
          "userInteraction": "None",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
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                "value": "NULL Pointer Dereference (CWE-476)"
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            "url": "https://helpx.adobe.com/security/products/acrobat/apsb21-09.html"
          }
        ]
      },
      "source": {
        "discovery": "EXTERNAL"
      }
    },
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            }
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      },
      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
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            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
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          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
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            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
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            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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        }
      },
      "lastModifiedDate": "2021-09-08T17:23Z",
      "publishedDate": "2021-02-11T20:15Z"
    }
  }
}


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  • 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.
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  • 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.