CWE-416
Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
CVE-2021-4187 (GCVE-0-2021-4187)
Vulnerability from cvelistv5 – Published: 2021-12-29 17:10 – Updated: 2025-11-03 20:34
VLAI
Title
Use After Free in vim/vim
Summary
vim is vulnerable to Use After Free
Severity
6.8 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
13 references
| URL | Tags |
|---|---|
| https://huntr.dev/bounties/a8bee03a-6e2e-43bf-bee… | x_refsource_CONFIRM |
| https://github.com/vim/vim/commit/4bf1006cae7e872… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| http://www.openwall.com/lists/oss-security/2022/01/15/1 | mailing-listx_refsource_MLIST |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://support.apple.com/kb/HT213183 | x_refsource_CONFIRM |
| http://seclists.org/fulldisclosure/2022/Mar/29 | mailing-listx_refsource_FULLDISC |
| https://support.apple.com/kb/HT213256 | x_refsource_CONFIRM |
| http://seclists.org/fulldisclosure/2022/May/35 | mailing-listx_refsource_FULLDISC |
| https://support.apple.com/kb/HT213343 | x_refsource_CONFIRM |
| http://seclists.org/fulldisclosure/2022/Jul/14 | mailing-listx_refsource_FULLDISC |
| https://security.gentoo.org/glsa/202208-32 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
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CVE-2021-4192 (GCVE-0-2021-4192)
Vulnerability from cvelistv5 – Published: 2021-12-31 00:00 – Updated: 2024-08-03 17:16
VLAI
Title
Use After Free in vim/vim
Summary
vim is vulnerable to Use After Free
Severity
5.5 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
13 references
Impacted products
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CVE-2021-42269 (GCVE-0-2021-42269)
Vulnerability from cvelistv5 – Published: 2021-11-18 16:42 – Updated: 2025-04-23 19:20
VLAI
Title
Adobe Animate FLA File Parsing Use After Free Remote Code Execution
Summary
Adobe Animate version 21.0.9 (and earlier) are affected by a use-after-free vulnerability in the processing of a malformed FLA file 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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
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/animate… | x_refsource_MISC |
Impacted products
Date Public
2021-10-26 00:00
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CVE-2021-42378 (GCVE-0-2021-42378)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2025-11-03 20:34
VLAI
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_i function
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
Impacted products
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CVE-2021-42379 (GCVE-0-2021-42379)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2025-11-03 20:34
VLAI
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the next_input_file function
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
Impacted products
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CVE-2021-42380 (GCVE-0-2021-42380)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2025-11-03 20:34
VLAI
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the clrvar function
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
Impacted products
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CVE-2021-42381 (GCVE-0-2021-42381)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2025-11-03 20:34
VLAI
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the hash_init function
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
Impacted products
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CVE-2021-42382 (GCVE-0-2021-42382)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2025-11-03 20:34
VLAI
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_s function
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
Impacted products
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CVE-2021-42383 (GCVE-0-2021-42383)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2025-04-23 19:23
VLAI
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the evaluate function
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
Impacted products
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CVE-2021-42384 (GCVE-0-2021-42384)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2025-11-03 20:34
VLAI
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the handle_special function
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
Impacted products
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"name": "FEDORA-2021-5a95823596",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/"
},
{
"name": "FEDORA-2021-c52c0fe490",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/"
},
{
"url": "https://security.netapp.com/advisory/ntap-20211223-0002/"
},
{
"url": "https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d",
"assignerShortName": "JFROG",
"cveId": "CVE-2021-42384",
"datePublished": "2021-11-15T00:00:00.000Z",
"dateReserved": "2021-10-14T00:00:00.000Z",
"dateUpdated": "2025-11-03T20:34:12.518Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Phase: Architecture and Design
Strategy: Language Selection
Description:
- Choose a language that provides automatic memory management.
Mitigation
Phase: Implementation
Strategy: Attack Surface Reduction
Description:
- 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.