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CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
CVE-2021-42376 (GCVE-0-2021-42376)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2024-08-04 03:30
VLAI
Summary
A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
Impacted products
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CVE-2021-42528 (GCVE-0-2021-42528)
Vulnerability from cvelistv5 – Published: 2022-05-02 22:24 – Updated: 2025-11-03 19:26
VLAI
Title
XMP-Toolkit Null Pointer Dereference Application denial-of-service
Summary
XMP Toolkit 2021.07 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | XMP Toolkit |
Affected:
unspecified , ≤ 2021.07
(custom)
Affected: unspecified , ≤ None (custom) |
Date Public
2021-10-26 00:00
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CVE-2021-42733 (GCVE-0-2021-42733)
Vulnerability from cvelistv5 – Published: 2021-11-22 15:22 – Updated: 2025-04-23 19:19
VLAI
Title
Adobe Bridge NULL Pointer Dereference could lead to Application denial-of-service
Summary
Adobe Bridge version 11.1.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/bridge/… | x_refsource_MISC |
Impacted products
Date Public
2021-10-26 00:00
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CVE-2021-43016 (GCVE-0-2021-43016)
Vulnerability from cvelistv5 – Published: 2021-11-22 15:33 – Updated: 2025-04-23 19:18
VLAI
Title
Adobe InCopy NULL Pointer Dereference Application Denial of Service
Summary
Adobe InCopy version 16.4 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/incopy/… | x_refsource_MISC |
Impacted products
Date Public
2021-11-09 00:00
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CVE-2021-43748 (GCVE-0-2021-43748)
Vulnerability from cvelistv5 – Published: 2021-12-20 20:08 – Updated: 2025-04-23 19:17
VLAI
Title
Adobe Premiere Rush NULL Pointer Dereference Local Denial-of-Service
Summary
Adobe Premiere Rush versions 1.5.16 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/premier… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Premiere Rush |
Affected:
unspecified , ≤ 1.5.16
(custom)
Affected: unspecified , ≤ None (custom) |
Date Public
2021-12-14 00:00
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CVE-2021-43749 (GCVE-0-2021-43749)
Vulnerability from cvelistv5 – Published: 2021-12-20 20:08 – Updated: 2025-04-23 19:17
VLAI
Title
Adobe Premiere Rush NULL Pointer Dereference Local Denial-of-Service
Summary
Adobe Premiere Rush versions 1.5.16 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/premier… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Premiere Rush |
Affected:
unspecified , ≤ 1.5.16
(custom)
Affected: unspecified , ≤ None (custom) |
Date Public
2021-12-14 00:00
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CVE-2021-43750 (GCVE-0-2021-43750)
Vulnerability from cvelistv5 – Published: 2021-12-20 20:08 – Updated: 2025-04-23 19:16
VLAI
Title
Adobe Premiere Rush NULL Pointer Dereference Local Denial-of-Service
Summary
Adobe Premiere Rush versions 1.5.16 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/premier… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Premiere Rush |
Affected:
unspecified , ≤ 1.5.16
(custom)
Affected: unspecified , ≤ None (custom) |
Date Public
2021-12-14 00:00
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CVE-2021-43824 (GCVE-0-2021-43824)
Vulnerability from cvelistv5 – Published: 2022-02-22 22:15 – Updated: 2025-04-23 19:01
VLAI
Title
Null pointer dereference in envoy
Summary
Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/envoyproxy/envoy/security/advi… | x_refsource_CONFIRM |
| https://github.com/envoyproxy/envoy/commit/937133… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| envoyproxy | envoy |
Affected:
>= 1.20.0, < 1.20.2
Affected: >= 1.19.0, < 1.19.3 Affected: < 1.18.6 Affected: >= 1.21.0, < 1.21.1 |
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CVE-2021-44224 (GCVE-0-2021-44224)
Vulnerability from cvelistv5 – Published: 2021-12-20 11:20 – Updated: 2024-08-04 04:17
VLAI
Title
Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2.4.51 and earlier
Summary
A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).
Severity
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
19 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.7 , < Apache HTTP Server 2.4*
(custom)
|
Credits
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CVE-2021-44740 (GCVE-0-2021-44740)
Vulnerability from cvelistv5 – Published: 2022-01-14 19:05 – Updated: 2024-09-16 17:03
VLAI
Title
Adobe Acrobat Pro DC NULL Pointer Dereference could lead to Application-denial-of-service
Summary
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
unspecified , ≤ 21.007.20099
(custom)
Affected: unspecified , ≤ 20.004.30017 (custom) Affected: unspecified , ≤ 17.011.30204 (custom) Affected: unspecified , ≤ None (custom) |
Date Public
2022-01-11 00:00
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Mitigation ID: MIT-56
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 [REF-1484].
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.