Common Weakness Enumeration

CWE-457

Allowed

Use of Uninitialized Variable

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

298 vulnerabilities reference this CWE, most recent first.

CVE-2021-46566 (GCVE-0-2021-46566)

Vulnerability from cvelistv5 – Published: 2022-02-18 19:44 – Updated: 2024-08-04 05:10
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of JT files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15027.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
zdi
References
Impacted products
Vendor Product Version
Bentley MicroStation CONNECT Affected: 10.16.0.80
Create a notification for this product.
Credits
xina1i
Show details on NVD website
To clipboard 

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CVE-2021-44003 (GCVE-0-2021-44003)

Vulnerability from cvelistv5 – Published: 2021-12-14 12:06 – Updated: 2024-08-04 04:10
VLAI
Summary
A vulnerability has been identified in JT2Go (All versions < V13.2.0.5), Teamcenter Visualization (All versions < V13.2.0.5). The Tiff_Loader.dll is vulnerable to use of uninitialized memory while parsing user supplied TIFF files. This could allow an attacker to cause a denial-of-service condition.
Severity
No CVSS data available.
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
References
Impacted products
Vendor Product Version
Siemens JT2Go Affected: All versions < V13.2.0.5
Create a notification for this product.
Siemens Teamcenter Visualization Affected: All versions < V13.2.0.5
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-41253 (GCVE-0-2021-41253)

Vulnerability from cvelistv5 – Published: 2021-11-08 21:45 – Updated: 2024-08-04 03:08
VLAI
Title
Possible heap buffer overflow when using zycore string functions in formatter hooks
Summary
Zydis is an x86/x86-64 disassembler library. Users of Zydis versions v3.2.0 and older that use the string functions provided in `zycore` in order to append untrusted user data to the formatter buffer within their custom formatter hooks can run into heap buffer overflows. Older versions of Zydis failed to properly initialize the string object within the formatter buffer, forgetting to initialize a few fields, leaving their value to chance. This could then in turn cause zycore functions like `ZyanStringAppend` to make incorrect calculations for the new target size, resulting in heap memory corruption. This does not affect the regular uncustomized Zydis formatter, because Zydis internally doesn't use the string functions in zycore that act upon these fields. However, because the zycore string functions are the intended way to work with the formatter buffer for users of the library that wish to extend the formatter, we still consider this to be a vulnerability in Zydis. This bug is patched starting in version 3.2.1. As a workaround, users may refrain from using zycore string functions in their formatter hooks until updating to a patched version.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow
  • CWE-457 - Use of Uninitialized Variable
Assigner
References
Impacted products
Vendor Product Version
zyantific zydis Affected: < 3.2.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-40418 (GCVE-0-2021-40418)

Vulnerability from cvelistv5 – Published: 2021-12-22 18:07 – Updated: 2024-08-04 02:44
VLAI
Summary
When parsing a file that is submitted to the DPDecoder service as a job, the R3D SDK will mistakenly skip over the assignment of a property containing an object referring to a UUID that was parsed from a frame within the video container. Upon destruction of the object that owns it, the uninitialized member will be dereferenced and then destroyed using the object’s virtual destructor. Due to the object property being uninitialized, this can result in dereferencing an arbitrary pointer for the object’s virtual method table, which can result in code execution under the context of the application.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
References
Impacted products
Vendor Product Version
n/a Blackmagic Design Affected: Blackmagic Design DaVinci Resolve 17.3.1.0005
Show details on NVD website
To clipboard 

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CVE-2021-34953 (GCVE-0-2021-34953)

Vulnerability from cvelistv5 – Published: 2024-05-07 22:54 – Updated: 2024-08-04 00:26
VLAI
Title
Foxit PDF Reader Annotation Use of Uninitialized Variable Remote Code Execution Vulnerability
Summary
Foxit PDF Reader Annotation Use of Uninitialized Variable Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Annotation objects. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14658.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
zdi
References
Impacted products
Vendor Product Version
Foxit PDF Reader Affected: 11.0.1.49938
Create a notification for this product.
foxit pdf_reader Affected: - , ≤ 11.0.1.49938 (custom)
    cpe:2.3:a:foxit:pdf_reader:-:*:*:*:*:*:*:*
 Create a notification for this product.
foxit pdf_editor Affected: - , ≤ 10.1.5.37672 (custom)
    cpe:2.3:a:foxit:pdf_editor:-:*:*:*:*:*:*:*
 Create a notification for this product.
foxit pdf_editor Affected: 11.0.1.49938
    cpe:2.3:a:foxit:pdf_editor:11.0.1.49938:*:*:*:*:*:*:*
 Create a notification for this product.
foxit pdf_editor Affected: 11.0.0.49893
    cpe:2.3:a:foxit:pdf_editor:11.0.0.49893:*:*:*:*:*:*:*
 Create a notification for this product.
Date Public
2021-10-15 12:32
Show details on NVD website
To clipboard 

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CVE-2021-34951 (GCVE-0-2021-34951)

Vulnerability from cvelistv5 – Published: 2024-05-07 22:54 – Updated: 2024-08-04 00:26
VLAI
Title
Foxit PDF Reader Annotation Use of Uninitialized Variable Information Disclosure Vulnerability
Summary
Foxit PDF Reader Annotation Use of Uninitialized Variable Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Annotation objects. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14395.
Severity
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
zdi
References
Impacted products
Vendor Product Version
Foxit PDF Reader Affected: 11.0.0.49893
Create a notification for this product.
foxit phantompdf Affected: 0 , ≤ 10.1.5.37672 (custom)
    cpe:2.3:a:foxit:phantompdf:*:*:*:*:*:*:*:*
 Create a notification for this product.
foxit pdf_editor Affected: 0 , ≤ 11.0.1.49938 (custom)
    cpe:2.3:a:foxit:pdf_editor:-:*:*:*:*:*:*:*
 Create a notification for this product.
foxit pdf_editor Affected: 0 , ≤ 11.0.0.49893 (custom)
    cpe:2.3:a:foxit:pdf_editor:-:*:*:*:*:*:*:*
 Create a notification for this product.
foxit pdf_editor Affected: 0 , ≤ 10.1.5.37672 (custom)
    cpe:2.3:a:foxit:pdf_editor:-:*:*:*:*:*:*:*
 Create a notification for this product.
foxit pdf_reader Affected: 0 , ≤ 11.0.1.49938 (custom)
    cpe:2.3:a:foxit:pdf_reader:-:*:*:*:*:*:*:*
 Create a notification for this product.
Date Public
2021-10-15 12:31
Show details on NVD website
To clipboard 

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CVE-2021-31435 (GCVE-0-2021-31435)

Vulnerability from cvelistv5 – Published: 2021-04-29 16:31 – Updated: 2024-08-03 22:55
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.931. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CMP files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12331.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
zdi
References
Impacted products
Vendor Product Version
Foxit Studio Photo Affected: 3.6.6.931
Create a notification for this product.
Credits
Francis Provencher {PRL}
Show details on NVD website
To clipboard 

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CVE-2021-21966 (GCVE-0-2021-21966)

Vulnerability from cvelistv5 – Published: 2022-02-16 16:38 – Updated: 2024-08-03 18:30
VLAI
Summary
An information disclosure vulnerability exists in the HTTP Server /ping.html functionality of Texas Instruments CC3200 SimpleLink Solution NWP 2.9.0.0. A specially-crafted HTTP request can lead to an uninitialized read. An attacker can send an HTTP request to trigger this vulnerability.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
References
Impacted products
Vendor Product Version
n/a Texas Instruments Affected: Texas Instruments CC3200 SimpleLink Solution NWP 2.9.0.0,Sealevel Systems, Inc. SeaConnect 370W v1.3.34
Show details on NVD website
To clipboard 

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CVE-2021-3928 (GCVE-0-2021-3928)

Vulnerability from cvelistv5 – Published: 2021-11-05 00:00 – Updated: 2024-08-03 17:09
VLAI
Title
Use of Uninitialized Variable in vim/vim
Summary
vim is vulnerable to Use of Uninitialized Variable
Severity
7.3 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
References
Impacted products
Vendor Product Version
vim vim/vim Affected: unspecified , < 8.2.3582 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-27124 (GCVE-0-2020-27124)

Vulnerability from cvelistv5 – Published: 2024-11-18 16:03 – Updated: 2024-11-18 16:25
VLAI
Title
Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability
Summary
A vulnerability in the SSL/TLS handler of Cisco&nbsp;Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause the affected device to reload unexpectedly, leading to a denial of service (DoS) condition. The vulnerability is due to improper error handling on established SSL/TLS connections. An attacker could exploit this vulnerability by establishing an SSL/TLS connection with the affected device and then sending a malicious SSL/TLS message within that connection. A successful exploit could allow the attacker to cause the device to reload.Cisco&nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/RL:X/RC:X/E:X
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-457 - Use of Uninitialized Variable
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco Adaptive Security Appliance (ASA) Software Affected: N/A
Create a notification for this product.
cisco adaptive_security_appliance Affected: 9.13.1.12 , < 9.13.1.16 (custom)
Affected: 9.14.1.10 , < 9.14.1.15 (custom)
    cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
To clipboard 

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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-18T16:23:01.950420Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-18T16:25:39.424Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Adaptive Security Appliance (ASA) Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "N/A"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the SSL/TLS handler of Cisco\u0026nbsp;Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause the affected device to reload unexpectedly, leading to a denial of service (DoS) condition.\r\nThe vulnerability is due to improper error handling on established SSL/TLS connections. An attacker could exploit this vulnerability by establishing an SSL/TLS connection with the affected device and then sending a malicious SSL/TLS message within that connection. A successful exploit could allow the attacker to cause the device to reload.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco\u00a0Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/RL:X/RC:X/E:X",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-457",
              "description": "Use of Uninitialized Variable",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-18T16:03:00.333Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-asa-ssl-dos-7uZWwSEy",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-dos-7uZWwSEy"
        },
        {
          "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-rv-routers-xss-K7Z5U6q3",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-rv-routers-xss-K7Z5U6q3"
        },
        {
          "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4Ctq",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4Ctq"
        }
      ],
      "source": {
        "advisory": "cisco-sa-asa-ssl-dos-7uZWwSEy",
        "defects": [
          "CSCvt64822"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2020-27124",
    "datePublished": "2024-11-18T16:03:00.333Z",
    "dateReserved": "2020-10-13T00:00:00.000Z",
    "dateUpdated": "2024-11-18T16:25:39.424Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}
Mitigation MIT-57
Implementation

Strategy: Attack Surface Reduction

Ensure that critical variables are initialized before first use [REF-1485].

Mitigation
Build and Compilation

Strategy: Compilation or Build Hardening

Most compilers will complain about the use of uninitialized variables if warnings are turned on.

Mitigation
Implementation Operation

When using a language that does not require explicit declaration of variables, run or compile the software in a mode that reports undeclared or unknown variables. This may indicate the presence of a typographic error in the variable's name.

Mitigation
Requirements

Strategy: Language Selection

Choose a language that is not susceptible to these issues.

Mitigation
Architecture and Design

Mitigating technologies such as safe string libraries and container abstractions could be introduced.

No CAPEC attack patterns related to this CWE.

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