Common Weakness Enumeration
CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9821 vulnerabilities reference this CWE, most recent first.
CVE-2021-45064 (GCVE-0-2021-45064)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:05 – Updated: 2024-09-16 22:31
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader DC AcroForm Use-After-Free Remote Code Execution Vulnerability
Summary
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20099
(custom)
Affected: unspecified , ≤ 20.004.30017 (custom) Affected: unspecified , ≤ 17.011.30204 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2022-01-11 00:00
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CVE-2021-45063 (GCVE-0-2021-45063)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:05 – Updated: 2024-09-16 17:43
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader DC JP2 File Parsing Use-After-Free Information Disclosure Vulnerability
Summary
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20099
(custom)
Affected: unspecified , ≤ 20.004.30017 (custom) Affected: unspecified , ≤ 17.011.30204 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2022-01-11 00:00
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CVE-2021-45062 (GCVE-0-2021-45062)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:05 – Updated: 2024-09-17 03:03
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader DC Font Parsing Use-After-Free Remote Code Execution Vulnerability
Summary
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20099
(custom)
Affected: unspecified , ≤ 20.004.30017 (custom) Affected: unspecified , ≤ 17.011.30204 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2022-01-11 00:00
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CVE-2021-45059 (GCVE-0-2021-45059)
Vulnerability from cvelistv5 – Published: 2022-01-13 20:27 – Updated: 2025-04-23 19:12
VLAI
EPSS
VEX
Title
Adobe InDesign JPEG2000 Parsing Use-After-Free Information Disclosure Vulnerability
Summary
Adobe InDesign version 16.4 (and earlier) is affected by a use-after-free vulnerability in the processing of a JPEG2000 file that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/indesig… | x_refsource_MISC |
Impacted products
Date Public
2022-01-11 00:00
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CVE-2021-45054 (GCVE-0-2021-45054)
Vulnerability from cvelistv5 – Published: 2022-01-13 20:27 – Updated: 2025-04-23 19:13
VLAI
EPSS
VEX
Title
Adobe InCopy JPEG2000 Parsing Use-After-Free Information Disclosure Vulnerability
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/incopy/… | x_refsource_MISC |
Impacted products
Date Public
2022-01-11 00:00
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CVE-2021-45051 (GCVE-0-2021-45051)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:04 – Updated: 2025-04-23 19:11
VLAI
EPSS
VEX
Title
Adobe Bridge JPEG2000 Parsing Use-After-Free Information Disclosure Vulnerability
Summary
Adobe Bridge version 11.1.2 (and earlier) and version 12.0 (and earlier) are affected by an use-after-free vulnerability in the processing of Format event actions that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/bridge/… | x_refsource_MISC |
Impacted products
Date Public
2022-01-11 00:00
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CVE-2021-44713 (GCVE-0-2021-44713)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:05 – Updated: 2024-09-16 23:31
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader DC Use After Free could lead to Application denial-of-service
Summary
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in application denial of service. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20099
(custom)
Affected: unspecified , ≤ 20.004.30017 (custom) Affected: unspecified , ≤ 17.011.30204 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2022-01-11 00:00
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CVE-2021-44710 (GCVE-0-2021-44710)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:05 – Updated: 2024-09-16 17:54
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader Use-after-free could lead to Arbitrary code execution
Summary
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20099
(custom)
Affected: unspecified , ≤ 20.004.30017 (custom) Affected: unspecified , ≤ 17.011.30204 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2022-01-11 00:00
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CVE-2021-44706 (GCVE-0-2021-44706)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:05 – Updated: 2024-09-16 16:28
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader Collab.registerReview Use-After-Free Remote Execution Vulnerability
Summary
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20099
(custom)
Affected: unspecified , ≤ 20.004.30017 (custom) Affected: unspecified , ≤ 17.011.30204 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2022-01-11 00:00
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CVE-2021-44705 (GCVE-0-2021-44705)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:05 – Updated: 2024-09-16 20:42
VLAI
EPSS
VEX
Title
Adobe Acrobat Reader Use-After-Free could lead to Arbitrary code execution
Summary
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20099
(custom)
Affected: unspecified , ≤ 20.004.30017 (custom) Affected: unspecified , ≤ 17.011.30204 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2022-01-11 00:00
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"version_affected": "\u003c=",
"version_value": "17.011.30204"
},
{
"version_affected": "\u003c=",
"version_value": "None"
}
]
}
}
]
},
"vendor_name": "Adobe"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "Low",
"attackVector": "Local",
"availabilityImpact": "High",
"baseScore": 7.8,
"baseSeverity": "High",
"confidentialityImpact": "High",
"integrityImpact": "High",
"privilegesRequired": "None",
"scope": "Unchanged",
"userInteraction": "Required",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Use After Free (CWE-416)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://helpx.adobe.com/security/products/acrobat/apsb22-01.html",
"refsource": "MISC",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb22-01.html"
},
{
"name": "https://www.zerodayinitiative.com/advisories/ZDI-22-540/",
"refsource": "MISC",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-540/"
}
]
},
"source": {
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
"assignerShortName": "adobe",
"cveId": "CVE-2021-44705",
"datePublished": "2022-01-14T19:05:38.582Z",
"dateReserved": "2021-12-07T00:00:00.000Z",
"dateUpdated": "2024-09-16T20:42:54.397Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.