CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
CVE-2014-0757 (GCVE-0-2014-0757)
Vulnerability from cvelistv5
Published
2014-01-31 02:00
Modified
2025-08-22 22:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Smart Software Solutions (3S) CoDeSys Runtime Toolkit before 2.4.7.44 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.cisa.gov/news-events/ics-advisories/icsa-14-030-01 | ||
| http://secunia.com/advisories/56713 | third-party-advisory, x_refsource_SECUNIA |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Smart Software Solutions (3S) | CoDeSys Runtime Toolkit |
Version: 0 < V2.4.7.44 |
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CVE-2023-24940 (GCVE-0-2023-24940)
Vulnerability from cvelistv5
Published
2023-05-09 17:02
Modified
2025-07-10 16:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
Windows Pragmatic General Multicast (PGM) Denial of Service Vulnerability
References
| ▼ | URL | Tags |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24940 | vendor-advisory |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| ▼ | Microsoft | Windows 10 Version 1809 |
Version: 10.0.17763.0 < 10.0.17763.4377 |
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CVE-2023-3106 (GCVE-0-2023-3106)
Vulnerability from cvelistv5
Published
2023-07-12 08:27
Modified
2025-08-30 05:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A NULL pointer dereference vulnerability was found in netlink_dump. This issue can occur when the Netlink socket receives the message(sendmsg) for the XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY type message, and the DUMP flag is set and can cause a denial of service or possibly another unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-3106 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2221501 | issue-tracking, x_refsource_REDHAT | |
| https://github.com/torvalds/linux/commit/1ba5bf993c6a3142e18e68ea6452b347f9cb5635 |
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
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CVE-2023-3772 (GCVE-0-2023-3772)
Vulnerability from cvelistv5
Published
2023-07-25 15:47
Modified
2025-07-23 19:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2023:6583 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2023:6901 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2023:7077 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0412 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0575 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2023-3772 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2218943 | issue-tracking, x_refsource_REDHAT |
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 8 |
Unaffected: 0:4.18.0-513.5.1.rt7.307.el8_9 < * cpe:/a:redhat:enterprise_linux:8::realtime cpe:/a:redhat:enterprise_linux:8::nfv |
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CVE-2023-40546 (GCVE-0-2023-40546)
Vulnerability from cvelistv5
Published
2024-01-29 16:29
Modified
2025-08-30 06:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:1834 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1835 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1873 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1876 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1883 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1902 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1903 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1959 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:2086 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2023-40546 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2241796 | issue-tracking, x_refsource_REDHAT |
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 7 |
Unaffected: 0:15.8-3.el7 < * cpe:/o:redhat:enterprise_linux:7::workstation cpe:/o:redhat:enterprise_linux:7::client cpe:/o:redhat:enterprise_linux:7::server |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2023-42754 (GCVE-0-2023-42754)
Vulnerability from cvelistv5
Published
2023-10-05 18:25
Modified
2025-07-23 18:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:2394 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:2950 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:3138 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2023-42754 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2239845 | issue-tracking, x_refsource_REDHAT | |
| https://seclists.org/oss-sec/2023/q4/14 |
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 8 |
Unaffected: 0:4.18.0-553.rt7.342.el8_10 < * cpe:/a:redhat:enterprise_linux:8::nfv cpe:/a:redhat:enterprise_linux:8::realtime |
||||||||||||||||||||||||||||||||||||
|
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CVE-2023-4385 (GCVE-0-2023-4385)
Vulnerability from cvelistv5
Published
2023-08-16 16:49
Modified
2025-08-30 11:46
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-4385 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2219272 | issue-tracking, x_refsource_REDHAT | |
| https://github.com/torvalds/linux/commit/0d4837fdb796f99369cf7691d33de1b856bcaf1f |
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
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CVE-2023-4459 (GCVE-0-2023-4459)
Vulnerability from cvelistv5
Published
2023-08-21 18:49
Modified
2025-08-03 04:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:0412 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1250 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1306 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1367 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1382 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:2006 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:2008 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2023-4459 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2219268 | issue-tracking, x_refsource_REDHAT | |
| https://github.com/torvalds/linux/commit/edf410cb74dc612fd47ef5be319c5a0bcd6e6ccd |
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
Unaffected: 0:4.18.0-193.133.1.el8_2 < * 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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CVE-2023-6356 (GCVE-0-2023-6356)
Vulnerability from cvelistv5
Published
2024-02-07 21:04
Modified
2025-08-04 05:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:0723 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0724 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0725 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0881 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0897 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1248 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:2094 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:3810 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2023-6356 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2254054 | issue-tracking, x_refsource_REDHAT |
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 8 |
Unaffected: 0:4.18.0-513.18.1.rt7.320.el8_9 < * cpe:/a:redhat:enterprise_linux:8::nfv cpe:/a:redhat:enterprise_linux:8::realtime |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2023-6535 (GCVE-0-2023-6535)
Vulnerability from cvelistv5
Published
2024-02-07 21:04
Modified
2025-08-04 05:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:0723 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0724 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0725 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0881 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:0897 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1248 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:2094 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:3810 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2023-6535 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2254053 | issue-tracking, x_refsource_REDHAT |
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 8 |
Unaffected: 0:4.18.0-513.18.1.rt7.320.el8_9 < * cpe:/a:redhat:enterprise_linux:8::nfv cpe:/a:redhat:enterprise_linux:8::realtime |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mitigation
Phase: Implementation
Description:
- For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished.
Mitigation
Phase: Requirements
Description:
- Select a programming language that is not susceptible to these issues.
Mitigation
Phase: Implementation
Description:
- Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Phase: Architecture and Design
Description:
- Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Phase: Implementation
Description:
- Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.