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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9854 vulnerabilities reference this CWE, most recent first.
CVE-2023-3439 (GCVE-0-2023-3439)
Vulnerability from cvelistv5 – Published: 2023-06-28 00:00 – Updated: 2025-03-10 21:08
VLAI
EPSS
VEX
Summary
A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Linux Kernel (mctp) |
Affected:
Fixed in kernel 5.18-rc5
|
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CVE-2023-3397 (GCVE-0-2023-3397)
Vulnerability from cvelistv5 – Published: 2023-11-01 19:05 – Updated: 2025-11-20 17:26
VLAI
EPSS
VEX
Title
Kernel: slab-use-after-free write in txend due to race condition
Summary
A race condition occurred between the functions lmLogClose and txEnd in JFS, in the Linux Kernel, executed in different threads. This flaw allows a local attacker with normal user privileges to crash the system or leak internal kernel information.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-3397 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2217271 | issue-trackingx_refsource_REDHAT |
| https://www.spinics.net/lists/kernel/msg4788636.html |
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
2023-05-08 00:00
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CVE-2023-3390 (GCVE-0-2023-3390)
Vulnerability from cvelistv5 – Published: 2023-06-28 20:02 – Updated: 2026-07-22 11:58
VLAI
EPSS
VEX
Title
Use-after-free in Linux kernel's netfilter subsystem
Summary
A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c.
Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue.
We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97
Severity
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
11 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux Kernel |
Affected:
3.16 , < 4.14.322
(custom)
Affected: 4.15 , < 4.19.291 (custom) Affected: 4.20 , < 5.4.251 (custom) Affected: 5.5 , < 5.10.188 (custom) Affected: 5.11 , < 5.15.118 (custom) Affected: 5.16 , < 6.1.35 (custom) Affected: 6.2 , < 6.3.9 (custom) |
Date Public
2023-06-08 19:49
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CVE-2023-3389 (GCVE-0-2023-3389)
Vulnerability from cvelistv5 – Published: 2023-06-28 19:33 – Updated: 2025-03-05 18:55
VLAI
EPSS
VEX
Title
Use after free in io_uring in the Linux Kernel
Summary
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.
Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.
We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).
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
10 references
Impacted products
Date Public
2023-06-18 02:21
Credits
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CVE-2023-3317 (GCVE-0-2023-3317)
Vulnerability from cvelistv5 – Published: 2023-06-23 00:00 – Updated: 2025-03-11 14:05
VLAI
EPSS
VEX
Summary
A use-after-free flaw was found in mt7921_check_offload_capability in drivers/net/wireless/mediatek/mt76/mt7921/init.c in wifi mt76/mt7921 sub-component in the Linux Kernel. This flaw could allow an attacker to crash the system after 'features' memory release. This vulnerability could even lead to a kernel information leak problem.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
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CVE-2023-3297 (GCVE-0-2023-3297)
Vulnerability from cvelistv5 – Published: 2023-09-01 20:49 – Updated: 2024-09-30 20:19
VLAI
EPSS
VEX
Summary
In Ubuntu's accountsservice an unprivileged local attacker can trigger a use-after-free vulnerability in accountsservice by sending a D-Bus message to the accounts-daemon process.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://ubuntu.com/security/notices/USN-6190-1 | vendor-advisory |
| https://securitylab.github.com/advisories/GHSL-20… | third-party-advisorytechnical-description |
| https://bugs.launchpad.net/ubuntu/+source/account… | issue-tracking |
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV… | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Canonical Ltd. | AccountService |
Unaffected:
23.13.9-2ubuntu2
|
Date Public
2023-06-28 12:00
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CVE-2023-3269 (GCVE-0-2023-3269)
Vulnerability from cvelistv5 – Published: 2023-07-11 11:45 – Updated: 2025-03-05 18:54
VLAI
EPSS
VEX
Title
Distros-[dirtyvma] privilege escalation via non-rcu-protected vma traversal
Summary
A vulnerability exists in the memory management subsystem of the Linux kernel. The lock handling for accessing and updating virtual memory areas (VMAs) is incorrect, leading to use-after-free problems. This issue can be successfully exploited to execute arbitrary kernel code, escalate containers, and gain root privileges.
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
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | kernel | ||
| 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
2023-07-05 00:00
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CVE-2023-3159 (GCVE-0-2023-3159)
Vulnerability from cvelistv5 – Published: 2023-06-12 00:00 – Updated: 2025-04-23 16:21
VLAI
EPSS
VEX
Summary
A use after free issue was discovered in driver/firewire in outbound_phy_packet_callback in the Linux Kernel. In this flaw a local attacker with special privilege may cause a use after free problem when queue_event() fails.
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
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CVE-2023-3141 (GCVE-0-2023-3141)
Vulnerability from cvelistv5 – Published: 2023-06-09 00:00 – Updated: 2025-03-11 14:56
VLAI
EPSS
VEX
Summary
A use-after-free flaw was found in r592_remove in drivers/memstick/host/r592.c in media access in the Linux Kernel. This flaw allows a local attacker to crash the system at device disconnect, possibly leading to a kernel information leak.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
Impacted products
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CVE-2023-3111 (GCVE-0-2023-3111)
Vulnerability from cvelistv5 – Published: 2023-06-05 00:00 – Updated: 2025-04-23 16:21
VLAI
EPSS
VEX
Summary
A use after free vulnerability was found in prepare_to_relocate in fs/btrfs/relocation.c in btrfs in the Linux Kernel. This possible flaw can be triggered by calling btrfs_ioctl_balance() before calling btrfs_ioctl_defrag().
Severity
7.8 (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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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.