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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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-2023-20027 (GCVE-0-2023-20027)
Vulnerability from cvelistv5 – Published: 2023-03-23 00:00 – Updated: 2024-10-28 16:33
VLAI
EPSS
VEX
Title
Cisco IOS XE Software Virtual Fragmentation Reassembly Denial of Service Vulnerability
Summary
A vulnerability in the implementation of the IPv4 Virtual Fragmentation Reassembly (VFR) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper reassembly of large packets that occurs when VFR is enabled on either a tunnel interface or on a physical interface that is configured with a maximum transmission unit (MTU) greater than 4,615 bytes. An attacker could exploit this vulnerability by sending fragmented packets through a VFR-enabled interface on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/c… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco IOS XE Software |
Affected:
n/a
|
Date Public
2023-03-22 00:00
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CVE-2023-7152 (GCVE-0-2023-7152)
Vulnerability from cvelistv5 – Published: 2023-12-29 04:31 – Updated: 2025-02-13 17:27
VLAI
EPSS
VEX
Title
MicroPython modselect.c poll_set_add_fd use after free
Summary
A vulnerability, which was classified as critical, has been found in MicroPython 1.21.0/1.22.0-preview. Affected by this issue is the function poll_set_add_fd of the file extmod/modselect.c. The manipulation leads to use after free. The exploit has been disclosed to the public and may be used. The patch is identified as 8b24aa36ba978eafc6114b6798b47b7bfecdca26. It is recommended to apply a patch to fix this issue. VDB-249158 is the identifier assigned to this vulnerability.
Severity
5.5 (Medium)
5.5 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.249158 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.249158 | signaturepermissions-required |
| https://github.com/micropython/micropython/issues/12887 | exploitissue-tracking |
| https://github.com/jimmo/micropython/commit/8b24a… | patch |
| https://lists.fedoraproject.org/archives/list/pac… | |
| https://lists.fedoraproject.org/archives/list/pac… | |
| https://lists.fedoraproject.org/archives/list/pac… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | MicroPython |
Affected:
1.21.0
Affected: 1.22.0-preview |
Credits
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CVE-2023-6932 (GCVE-0-2023-6932)
Vulnerability from cvelistv5 – Published: 2023-12-19 14:09 – Updated: 2026-05-12 10:52
VLAI
EPSS
VEX
Title
Use-after-free in Linux kernel's ipv4: igmp component
Summary
A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation.
A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread.
We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
9 references
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Kernel |
Affected:
2.6.12 , < 6.7
(custom)
|
|
| Siemens | RUGGEDCOM RST2428P |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | SCALANCE XCM-/XRM-/XCH-/XRH-300 family |
Unaffected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
Date Public
2023-11-24 15:25
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CVE-2023-6817 (GCVE-0-2023-6817)
Vulnerability from cvelistv5 – Published: 2023-12-18 14:37 – Updated: 2026-05-12 10:41
VLAI
EPSS
VEX
Title
Use-after-free in Linux kernel's netfilter: nf_tables component
Summary
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free.
We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
8 references
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Kernel |
Affected:
5.6 , < 6.7
(custom)
|
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
Date Public
2023-12-06 16:14
Credits
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CVE-2023-6363 (GCVE-0-2023-6363)
Vulnerability from cvelistv5 – Published: 2024-05-03 13:25 – Updated: 2024-11-25 17:40
VLAI
EPSS
VEX
Title
Mali GPU Kernel Driver allows improper GPU processing operations
Summary
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Severity
5.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Arm Ltd | Valhall GPU Kernel Driver |
Affected:
r41p0 , ≤ r47p0
(patch)
|
|
| Arm Ltd | Arm 5th Gen GPU Architecture Kernel Driver |
Affected:
r41p0 , ≤ r47p0
(patch)
|
Date Public
2024-05-03 10:00
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CVE-2023-6270 (GCVE-0-2023-6270)
Vulnerability from cvelistv5 – Published: 2024-01-04 17:01 – Updated: 2026-03-24 11:22
VLAI
EPSS
VEX
Title
Kernel: aoe: improper reference count leads to use-after-free vulnerability
Summary
A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-6270 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2256786 | issue-trackingx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2024… | x_transferred |
| https://lists.debian.org/debian-lts-announce/2024… | x_transferred |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Date Public
2024-01-04 00:00
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CVE-2023-6241 (GCVE-0-2023-6241)
Vulnerability from cvelistv5 – Published: 2024-03-04 12:15 – Updated: 2025-03-13 14:35
VLAI
EPSS
VEX
Title
Mali GPU Kernel Driver allows improper GPU memory processing operations
Summary
Use After Free vulnerability in Arm Ltd Midgard GPU Kernel Driver, Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to exploit a software race condition to perform improper memory processing operations. If the system’s memory is carefully prepared by the user, then this in turn cause a use-after-free.This issue affects Midgard GPU Kernel Driver: from r13p0 through r32p0; Bifrost GPU Kernel Driver: from r11p0 through r25p0; Valhall GPU Kernel Driver: from r19p0 through r25p0, from r29p0 through r46p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r46p0.
Severity
7.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Arm Ltd | Midgard GPU Kernel Driver |
Affected:
r13p0 , ≤ r32p0
(patch)
|
|
| Arm Ltd | Bifrost GPU Kernel Driver |
Affected:
r11p0 , ≤ r25p0
(patch)
|
|
| Arm Ltd | Valhall GPU Kernel Driver |
Affected:
r19p0 , ≤ r25p0
(patch)
Affected: r29p0 , ≤ r46p0 (patch) |
|
| Arm Ltd | Arm 5th Gen GPU Architecture Kernel Driver |
Affected:
r41p0 , ≤ r46p0
(patch)
|
|
| arm | midgard_gpu_kernel_driver |
Affected:
r13p0 , ≤ r32p0
(custom)
cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:* |
|
| arm | bifrost_gpu_kernel_driver |
Affected:
r11p0 , ≤ r25p0
(custom)
cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:* |
|
| arm | valhall_gpu_kernel_driver |
Affected:
r19p0 , ≤ r25p0
(custom)
Affected: r29p0 , ≤ r46p0 (custom) cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:* |
|
| arm | 5th_gen_gpu_architecture_kernel_driver |
Affected:
r41p0 , ≤ r46p0
(custom)
cpe:2.3:a:arm:5th_gen_gpu_architecture_kernel_driver:*:*:*:*:*:*:*:* |
Date Public
2024-03-04 12:15
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CVE-2023-6143 (GCVE-0-2023-6143)
Vulnerability from cvelistv5 – Published: 2024-03-04 09:54 – Updated: 2024-08-28 19:03
VLAI
EPSS
VEX
Title
Mali GPU Kernel Driver allows improper GPU memory processing operations
Summary
Use After Free vulnerability in Arm Ltd Midgard GPU Kernel Driver, Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to exploit a software race condition to perform improper memory processing operations. If the system’s memory is carefully prepared by the user and the system is under heavy load, then this in turn cause a use-after-free.This issue affects Midgard GPU Kernel Driver: from r13p0 through r32p0; Bifrost GPU Kernel Driver: from r1p0 through r18p0; Valhall GPU Kernel Driver: from r37p0 through r46p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r46p0.
Severity
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Arm Ltd | Midgard GPU Kernel Driver |
Affected:
r13p0 , ≤ r32p0
(patch)
|
|
| Arm Ltd | Bifrost GPU Kernel Driver |
Affected:
r1p0 , ≤ r18p0
(patch)
|
|
| Arm Ltd | Valhall GPU Kernel Driver |
Affected:
r37p0 , ≤ r46p0
(patch)
|
|
| Arm Ltd | Arm 5th Gen GPU Architecture Kernel Driver |
Affected:
r41p0 , ≤ r46p0
(patch)
|
|
| arm | midgard_gpu_kernel_driver |
Affected:
r13p0 , ≤ r32p0
(custom)
cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:* |
|
| arm | bifrost_gpu_kernel_driver |
Affected:
r1p0 , ≤ r18p0
(custom)
cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:* |
|
| arm | valhall_gpu_kernel_driver |
Affected:
r37p0 , ≤ r46p0
(custom)
cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:* |
|
| arm | 5th_gen_gpu_architecture_kernel_driver |
Affected:
r41p0 , ≤ r46p0
(custom)
cpe:2.3:a:arm:5th_gen_gpu_architecture_kernel_driver:*:*:*:*:*:*:*:* |
Date Public
2024-03-04 09:53
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CVE-2023-6111 (GCVE-0-2023-6111)
Vulnerability from cvelistv5 – Published: 2023-11-14 14:05 – Updated: 2025-02-13 17:26
VLAI
EPSS
VEX
Title
Use-after-free in Linux kernel's netfilter: nf_tables component
Summary
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times.
We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
6 references
Date Public
2023-11-08 12:52
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CVE-2023-6039 (GCVE-0-2023-6039)
Vulnerability from cvelistv5 – Published: 2023-11-09 15:08 – Updated: 2025-02-27 20:34
VLAI
EPSS
VEX
Title
Kernel: use-after-free in drivers/net/usb/lan78xx.c in lan78xx_disconnect
Summary
A use-after-free flaw was found in lan78xx_disconnect in drivers/net/usb/lan78xx.c in the network sub-component, net/usb/lan78xx in the Linux Kernel. This flaw allows a local attacker to crash the system when the LAN78XX USB device detaches.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-6039 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2248755 | issue-trackingx_refsource_REDHAT |
| https://github.com/torvalds/linux/commit/1e7417c1… |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Kernel |
Unaffected:
6.5-rc5
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Fedora | Fedora |
Date Public
2023-07-26 06:30
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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.