Common Weakness Enumeration

CWE-416

Allowed

Use After Free

Abstraction: Variant · Status: Stable

API response cwe.mitre.org

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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-2022-1284 (GCVE-0-2022-1284)

Vulnerability from cvelistv5 – Published: 2022-04-08 18:45 – Updated: 2024-08-02 23:55
VLAI
Title
heap-use-after-free in radareorg/radare2
Summary
heap-use-after-free in GitHub repository radareorg/radare2 prior to 5.6.8. This vulnerability is capable of inducing denial of service.
Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
radareorg radareorg/radare2 Affected: unspecified , < 5.6.8 (custom)
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CVE-2022-1280 (GCVE-0-2022-1280)

Vulnerability from cvelistv5 – Published: 2022-04-13 17:05 – Updated: 2024-08-02 23:55
VLAI
Summary
A use-after-free vulnerability was found in drm_lease_held in drivers/gpu/drm/drm_lease.c in the Linux kernel due to a race problem. This flaw allows a local user privilege attacker to cause a denial of service (DoS) or a kernel information leak.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a kernel Affected: kernel 5.17.x
Show details on NVD website
To clipboard 

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CVE-2022-1212 (GCVE-0-2022-1212)

Vulnerability from cvelistv5 – Published: 2022-04-05 03:45 – Updated: 2024-08-02 23:55
VLAI
Title
Use-After-Free in str_escape in mruby/mruby in mruby/mruby
Summary
Use-After-Free in str_escape in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.
Severity
9.3 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
mruby mruby/mruby Affected: unspecified , < 3.2 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-1205 (GCVE-0-2022-1205)

Vulnerability from cvelistv5 – Published: 2022-08-31 15:32 – Updated: 2024-08-02 23:55
VLAI
Summary
A NULL pointer dereference flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system.
Severity
No CVSS data available.
CWE
  • CWE-416 - - Use After Free, CWE-476 - NULL Pointer Dereference.
Assigner
References
Impacted products
Vendor Product Version
n/a Kernel Affected: Fixed in kernel v5.18-rc1
Show details on NVD website
To clipboard 

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CVE-2022-1204 (GCVE-0-2022-1204)

Vulnerability from cvelistv5 – Published: 2022-08-29 14:03 – Updated: 2024-08-02 23:55
VLAI
Summary
A use-after-free flaw was found in the Linux kernel’s Amateur Radio AX.25 protocol functionality in the way a user connects with the protocol. This flaw allows a local user to crash the system.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Kernel Affected: Not-Known.
Show details on NVD website
To clipboard 

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CVE-2022-1199 (GCVE-0-2022-1199)

Vulnerability from cvelistv5 – Published: 2022-08-29 00:00 – Updated: 2025-04-23 17:47
VLAI
Summary
A flaw was found in the Linux kernel. This flaw allows an attacker to crash the Linux kernel by simulating amateur radio from the user space, resulting in a null-ptr-deref vulnerability and a use-after-free vulnerability.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-416 - - Use After Free, CWE-476 - NULL Pointer Dereference.
Assigner
References
Impacted products
Vendor Product Version
n/a Kernel Affected: Fixed in kernel v5.18-rc4
Show details on NVD website
To clipboard 

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CVE-2022-1198 (GCVE-0-2022-1198)

Vulnerability from cvelistv5 – Published: 2022-08-29 14:03 – Updated: 2024-08-02 23:55
VLAI
Summary
A use-after-free vulnerabilitity was discovered in drivers/net/hamradio/6pack.c of linux that allows an attacker to crash linux kernel by simulating ax25 device using 6pack driver from user space.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a kernel Affected: Fixed in kernel v5.17-rc6
Show details on NVD website
To clipboard 

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CVE-2022-1184 (GCVE-0-2022-1184)

Vulnerability from cvelistv5 – Published: 2022-08-29 00:00 – Updated: 2024-08-02 23:55
VLAI
Summary
A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel’s filesystem sub-component. This flaw allows a local attacker with a user privilege to cause a denial of service.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Kernel Affected: Not-known
Show details on NVD website
To clipboard 

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CVE-2022-1158 (GCVE-0-2022-1158)

Vulnerability from cvelistv5 – Published: 2022-08-05 00:00 – Updated: 2024-08-02 23:55
VLAI
Summary
A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a kernel Affected: kernel 5.18
Show details on NVD website
To clipboard 

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CVE-2022-1154 (GCVE-0-2022-1154)

Vulnerability from cvelistv5 – Published: 2022-03-30 00:00 – Updated: 2024-08-02 23:55
VLAI
Title
Use after free in utf_ptr2char in vim/vim
Summary
Use after free in utf_ptr2char in GitHub repository vim/vim prior to 8.2.4646.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
vim vim/vim Affected: unspecified , < 8.2.4646 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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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.

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