Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product dereferences a pointer that it expects to be valid but is NULL.

6359 vulnerabilities reference this CWE, most recent first.

CVE-2020-10703 (GCVE-0-2020-10703)

Vulnerability from cvelistv5 – Published: 2020-06-02 00:00 – Updated: 2024-08-04 11:06
VLAI
Summary
A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
libvirt libvirt Affected: >= 3.10.0, < 6.0.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-10602 (GCVE-0-2020-10602)

Vulnerability from cvelistv5 – Published: 2020-07-24 22:58 – Updated: 2024-08-04 11:06
VLAI
Summary
In OSIsoft PI System multiple products and versions, an authenticated remote attacker could crash PI Network Manager due to a race condition. This can result in blocking connections and queries to PI Data Archive.
Severity
No CVSS data available.
CWE
  • CWE-476 - NULL POINTER DEREFERENCE CWE-476
Assigner
References
Impacted products
Vendor Product Version
n/a OSIsoft PI System multiple products and versions Affected: OSIsoft PI System multiple products and versions
Show details on NVD website
To clipboard 

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CVE-2020-10600 (GCVE-0-2020-10600)

Vulnerability from cvelistv5 – Published: 2020-07-24 23:01 – Updated: 2024-09-16 19:20
VLAI
Title
OSIsoft PI System
Summary
An authenticated remote attacker could crash PI Archive Subsystem when the subsystem is working under memory pressure. This can result in blocking queries to PI Data Archive (2018 SP2 and prior versions).
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE
  • CWE-476 - NULL POINTER DEREFERENCE CWE-476
Assigner
References
Impacted products
Vendor Product Version
OSIsoft PI Data Archive Affected: unspecified , < 2018 SP2 (custom)
Create a notification for this product.
Date Public
2020-06-09 00:00
Credits
William Knowles, Senior Security Consultant at Applied Risk, reported these vulnerabilities to OSIsoft
Show details on NVD website
To clipboard 

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CVE-2020-10066 (GCVE-0-2020-10066)

Vulnerability from cvelistv5 – Published: 2021-05-24 21:40 – Updated: 2024-09-17 01:41
VLAI
Title
Incorrect Error Handling in Bluetooth HCI core
Summary
Incorrect Error Handling in Bluetooth HCI core. Zephyr versions >= v1.14.2, >= v2.2.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-gc66-xfrc-24qr
Severity
2.5 (Low)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE
  • CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
Impacted products
Vendor Product Version
zephyrproject-rtos zephyr Affected: v1.14.2 , < unspecified (custom)
Affected: v2.2.0 , < unspecified (custom)
Create a notification for this product.
Date Public
2020-06-29 00:00
Show details on NVD website
To clipboard 

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CVE-2020-9746 (GCVE-0-2020-9746)

Vulnerability from cvelistv5 – Published: 2020-10-14 13:17 – Updated: 2025-04-23 19:47
VLAI
Title
Exploitable NULL pointer deref could lead to arbitrary code execution
Summary
Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an attacker to insert malicious strings in an HTTP response that is by default delivered over TLS/SSL.
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
Impacted products
Vendor Product Version
Adobe Flash Player Affected: unspecified , ≤ 32.0.0.387 (custom)
Affected: unspecified , ≤ 32.0.0.433 (custom)
Affected: unspecified , ≤ None (custom)
Create a notification for this product.
Date Public
2020-10-13 00:00
Show details on NVD website
To clipboard 

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CVE-2020-9085 (GCVE-0-2020-9085)

Vulnerability from cvelistv5 – Published: 2024-12-27 09:37 – Updated: 2024-12-27 16:06
VLAI
Summary
There is a NULL pointer dereference vulnerability in some Huawei products. An attacker may send specially crafted POST messages to the affected products. Due to insufficient validation of some parameter in the message, successful exploit may cause some process abnormal. (Vulnerability ID: HWPSIRT-2017-10105) This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9085.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Huawei HUAWEI 4G Router B612 Affected: B612s-25dTCPU-V100R001B192D03SP00C234
Affected: B612s-25dTCPU-V100R001B192D03SP00C287
Affected: B612s-25dTCPU-V100R001B192D05SP00C00
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-8859 (GCVE-0-2020-8859)

Vulnerability from cvelistv5 – Published: 2020-03-23 20:25 – Updated: 2024-08-04 10:12
VLAI
Summary
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of ELOG Electronic Logbook 3.1.4-283534d. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HTTP parameters. A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition. Was ZDI-CAN-10115.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
zdi
References
Impacted products
Vendor Product Version
ELOG Electronic Logbook Affected: 3.1.4-283534d
Create a notification for this product.
Credits
Asif Akbar of Trend Micro Security Research
Show details on NVD website
To clipboard 

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CVE-2020-8569 (GCVE-0-2020-8569)

Vulnerability from cvelistv5 – Published: 2021-01-21 17:09 – Updated: 2024-09-17 01:47
VLAI
Title
Kubernetes CSI snapshot-controller DoS
Summary
Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can’t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Kubernetes CSI Snapshotter Affected: snapshot-controller v3.0 , ≤ v3.0.1 (custom)
Affected: snapshot-controller v2.1 , ≤ v2.1.2 (custom)
Create a notification for this product.
Date Public
2020-11-17 00:00
Credits
Qin Ping
Show details on NVD website
To clipboard 

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CVE-2020-7062 (GCVE-0-2020-7062)

Vulnerability from cvelistv5 – Published: 2020-02-27 20:25 – Updated: 2024-09-16 22:24
VLAI
Title
Null Pointer Dereference in PHP Session Upload Progress
Summary
In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
php
References
URL Tags
https://bugs.php.net/bug.php?id=79221 x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://security.gentoo.org/glsa/202003-57 vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4330-1/ vendor-advisoryx_refsource_UBUNTU
https://www.debian.org/security/2020/dsa-4717 vendor-advisoryx_refsource_DEBIAN
https://www.debian.org/security/2020/dsa-4719 vendor-advisoryx_refsource_DEBIAN
https://www.tenable.com/security/tns-2021-14 x_refsource_CONFIRM
Impacted products
Vendor Product Version
PHP Group PHP Affected: 7.3.x , < 7.3.15 (custom)
Affected: 7.4.x , < 7.4.3 (custom)
Affected: 7.2.x , < 7.2.28 (custom)
Create a notification for this product.
Date Public
2020-02-17 00:00
Credits
Reported by ryat@php.net
Show details on NVD website
To clipboard 

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CVE-2020-5762 (GCVE-0-2020-5762)

Vulnerability from cvelistv5 – Published: 2020-07-29 18:51 – Updated: 2024-08-04 08:39
VLAI
Summary
Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to a denial of service attack against the TR-069 service. An unauthenticated remote attacker can stop the service due to a NULL pointer dereference in the TR-069 service. This condition is triggered due to mishandling of the HTTP Authentication field.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Grandstream HT800 Series Affected: Versions 1.0.17.5 and below
Show details on NVD website
To clipboard 

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Mitigation MIT-56
Implementation

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 [REF-1484].

Mitigation
Requirements

Select a programming language that is not susceptible to these issues.

Mitigation
Implementation

Check the results of all functions that return a value and verify that the value is non-null before acting upon it.

Mitigation
Architecture and Design

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
Implementation

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.

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