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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

10893 vulnerabilities reference this CWE, most recent first.

CVE-2023-4211 (GCVE-0-2023-4211)

Vulnerability from cvelistv5 – Published: 2023-10-01 17:00 – Updated: 2025-10-21 23:05
VLAI
Title
Mali GPU Kernel Driver Allows Improper GPU Memory Processing Operations
Summary
A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2023-11-15 16:37 UTC
CWE
Assigner
References
Impacted products
Date Public
2023-10-01 10:00
Credits
Maddie Stone, Google Threat Analysis Group Jann Horn, Google Project Zero
Show details on NVD website
To clipboard 

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CVE-2023-4208 (GCVE-0-2023-4208)

Vulnerability from cvelistv5 – Published: 2023-09-06 13:53 – Updated: 2025-02-13 17:09
VLAI
Title
Use-after-free in Linux kernel's net/sched: cls_u32 component
Summary
A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free. We recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Kernel Affected: 3.18 , < 6.5 (custom)
Create a notification for this product.
Date Public
2023-08-01 03:10
Credits
valis Muhammad Alifa Ramdhan of STAR Labs
Show details on NVD website
To clipboard 

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CVE-2023-4207 (GCVE-0-2023-4207)

Vulnerability from cvelistv5 – Published: 2023-09-06 13:53 – Updated: 2025-02-13 17:09
VLAI
Title
Use-after-free in Linux kernel's net/sched: cls_fw component
Summary
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Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Kernel Affected: 3.18 , < 6.5 (custom)
Create a notification for this product.
Date Public
2023-08-01 03:10
Credits
valis Bing-Jhong Billy Jheng
Show details on NVD website
To clipboard 

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CVE-2023-4206 (GCVE-0-2023-4206)

Vulnerability from cvelistv5 – Published: 2023-09-06 13:53 – Updated: 2025-02-13 17:09
VLAI
Title
Use-after-free in Linux kernel's net/sched: cls_route component
Summary
A use-after-free vulnerability in the Linux kernel's net/sched: cls_route component can be exploited to achieve local privilege escalation. When route4_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free. We recommend upgrading past commit b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Kernel Affected: 3.18 , < 6.5 (custom)
Create a notification for this product.
Date Public
2023-08-01 03:10
Credits
valis Bing-Jhong Billy Jheng
Show details on NVD website
To clipboard 

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CVE-2023-4147 (GCVE-0-2023-4147)

Vulnerability from cvelistv5 – Published: 2023-08-07 13:19 – Updated: 2026-02-25 17:20
VLAI
Title
Kernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-free
Summary
A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-09 15:55 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-284.30.1.el9_2 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-284.30.1.rt14.315.el9_2 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::realtime
    cpe:/a:redhat:enterprise_linux:9::nfv
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.80.1.el9_0 , < * (rpm)
    cpe:/o:redhat:rhel_eus:9.0::baseos
    cpe:/a:redhat:rhel_eus:9.0::appstream
    cpe:/a:redhat:rhel_eus:9.0::crb
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.80.1.rt21.151.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::nfv
    cpe:/a:redhat:rhel_eus:9.0::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support     cpe:/o:redhat:rhel_eus:9.0::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Date Public
2023-07-23 10:30
Show details on NVD website
To clipboard 

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CVE-2023-4134 (GCVE-0-2023-4134)

Vulnerability from cvelistv5 – Published: 2024-11-14 10:44 – Updated: 2024-11-14 19:34
VLAI
Title
Kernel: cyttsp4_core: use-after-free in cyttsp4_watchdog_work()
Summary
A use-after-free vulnerability was found in the cyttsp4_core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdog_timer from the workqueue. This could allow a local user to crash the system, causing a denial of service.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-14 18:53 UTC
CWE
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2023-4134 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2221700 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Unaffected: dbe836576f12743a7d2d170ad4ad4fd324c4d47a , < * (git)
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Date Public
2023-04-21 00:00
Credits
Red Hat would like to thank Duoming Zhou for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2023-4133 (GCVE-0-2023-4133)

Vulnerability from cvelistv5 – Published: 2023-08-03 14:32 – Updated: 2025-11-06 19:46
VLAI
Title
Kernel: cxgb4: use-after-free in ch_flower_stats_cb()
Summary
A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-26 21:51 UTC
CWE
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2024:2394 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2950 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3138 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-4133 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2221702 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.rt7.342.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::realtime
    cpe:/a:redhat:enterprise_linux:8::nfv
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/o:redhat:enterprise_linux:8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-427.13.1.el9_4 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::nfv
    cpe:/a:redhat:enterprise_linux:9::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Date Public
2023-04-15 00:00
Credits
Red Hat would like to thank Duoming Zhou for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2023-4132 (GCVE-0-2023-4132)

Vulnerability from cvelistv5 – Published: 2023-08-03 14:32 – Updated: 2025-11-07 13:03
VLAI
Title
Kernel: smsusb: use-after-free caused by do_submit_urb()
Summary
A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs during device initialization when the siano device is plugged in. This flaw allows a local user to crash the system, causing a denial of service condition.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-25 15:30 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-513.5.1.rt7.307.el8_9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::nfv
    cpe:/a:redhat:enterprise_linux:8::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-513.5.1.el8_9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/o:redhat:enterprise_linux:8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:4.18.0-372.91.1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:4.18.0-477.43.1.el8_8 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.8::crb
    cpe:/o:redhat:rhel_eus:8.8::baseos
Create a notification for this product.
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-372.91.1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Date Public
2023-02-08 00:00
Credits
Red Hat would like to thank Duoming Zhou for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2023-4015 (GCVE-0-2023-4015)

Vulnerability from cvelistv5 – Published: 2023-09-06 13:52 – Updated: 2025-02-13 17:03
VLAI
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. On an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used. We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Kernel Affected: 6.4 , < 6.5 (custom)
Create a notification for this product.
Date Public
2023-07-26 14:48
Credits
Kevin Rich
Show details on NVD website
To clipboard 

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CVE-2023-4004 (GCVE-0-2023-4004)

Vulnerability from cvelistv5 – Published: 2023-07-31 16:22 – Updated: 2025-11-08 03:13
VLAI
Title
Kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()
Summary
A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
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https://www.debian.org/security/2023/dsa-5480 x_transferred
https://www.debian.org/security/2023/dsa-5492 x_transferred
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-477.27.1.rt7.290.el8_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::realtime
    cpe:/a:redhat:enterprise_linux:8::nfv
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8::baseos
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Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-477.27.1.el8_8 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:8::baseos
    cpe:/a:redhat:enterprise_linux:8::crb
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Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:4.18.0-193.119.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.119.1.rt13.170.el8_2 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.2::nfv
    cpe:/a:redhat:rhel_tus:8.2::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.119.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
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Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.2::baseos
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Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Unaffected: 0:4.18.0-193.119.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-305.103.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.103.1.rt7.178.el8_4 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.4::nfv
    cpe:/a:redhat:rhel_tus:8.4::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.103.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Unaffected: 0:4.18.0-305.103.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.4::baseos
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Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support     cpe:/o:redhat:rhel_eus:8.6::baseos
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Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:4.18.0-372.75.1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-284.30.1.el9_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/a:redhat:enterprise_linux:9::crb
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-284.30.1.rt14.315.el9_2 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::nfv
    cpe:/a:redhat:enterprise_linux:9::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.80.1.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::appstream
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/o:redhat:rhel_eus:9.0::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.80.1.rt21.151.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::realtime
    cpe:/a:redhat:rhel_eus:9.0::nfv
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support     cpe:/o:redhat:rhel_eus:9.0::baseos
Create a notification for this product.
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-372.75.1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Date Public
2023-07-19 00:00
Show details on NVD website
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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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