Common Weakness Enumeration
CWE-252
AllowedUnchecked Return Value
Abstraction: Base · Status: Draft
The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.
227 vulnerabilities reference this CWE, most recent first.
CVE-2022-3108 (GCVE-0-2022-3108)
Vulnerability from cvelistv5 – Published: 2022-12-14 00:00 – Updated: 2025-04-22 14:18
VLAI
EPSS
VEX
Summary
An issue was discovered in the Linux kernel through 5.16-rc6. kfd_parse_subtype_iolink in drivers/gpu/drm/amd/amdkfd/kfd_crat.c lacks check of the return value of kmemdup().
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
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CVE-2022-1319 (GCVE-0-2022-1319)
Vulnerability from cvelistv5 – Published: 2022-08-31 00:00 – Updated: 2024-08-03 00:03
VLAI
EPSS
VEX
Summary
A flaw was found in Undertow. For an AJP 400 response, EAP 7 is improperly sending two response packets, and those packets have the reuse flag set even though JBoss EAP closes the connection. A failure occurs when the connection is reused after a 400 by CPING since it reads in the second SEND_HEADERS response packet instead of a CPONG.
Severity
No CVSS data available.
CWE
- CWE-252 - - Unchecked Return Value.
Assigner
References
6 references
Impacted products
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CVE-2022-0485 (GCVE-0-2022-0485)
Vulnerability from cvelistv5 – Published: 2022-08-29 14:03 – Updated: 2024-08-02 23:32
VLAI
EPSS
VEX
Summary
A flaw was found in the copying tool `nbdcopy` of libnbd. When performing multi-threaded copies using asynchronous nbd calls, nbdcopy was blindly treating the completion of an asynchronous command as successful, rather than checking the *error parameter. This could result in the silent creation of a corrupted destination image.
Severity
No CVSS data available.
CWE
- CWE-252 - - Unchecked Return Value.
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2046194 | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=2050324 | x_refsource_MISC |
| https://listman.redhat.com/archives/libguestfs/20… | x_refsource_MISC |
| https://gitlab.com/nbdkit/libnbd/-/commit/8d444b4… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2022-0485 | x_refsource_MISC |
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CVE-2021-42780 (GCVE-0-2021-42780)
Vulnerability from cvelistv5 – Published: 2022-04-18 00:00 – Updated: 2025-11-03 21:45
VLAI
EPSS
VEX
Summary
A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library.
Severity
No CVSS data available.
CWE
Assigner
References
6 references
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CVE-2021-41041 (GCVE-0-2021-41041)
Vulnerability from cvelistv5 – Published: 2022-04-27 02:10 – Updated: 2024-08-04 02:59
VLAI
EPSS
VEX
Summary
In Eclipse Openj9 before version 0.32.0, Java 8 & 11 fail to throw the exception captured during bytecode verification when verification is triggered by a MethodHandle invocation, allowing unverified methods to be invoked using MethodHandles.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/eclipse-openj9/openj9/pull/14935 | x_refsource_CONFIRM |
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=579744 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Eclipse Foundation | Eclipse OpenJ9 |
Affected:
unspecified , < 0.32.0
(custom)
|
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CVE-2021-40401 (GCVE-0-2021-40401)
Vulnerability from cvelistv5 – Published: 2022-02-04 00:00 – Updated: 2025-04-15 19:12
VLAI
EPSS
VEX
Summary
A use-after-free vulnerability exists in the RS-274X aperture definition tokenization functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and Gerbv forked 2.7.1. A specially-crafted gerber file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Severity
10 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-252 - Unchecked Return Value
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://www.debian.org/security/2022/dsa-5306 | vendor-advisory |
Impacted products
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CVE-2021-37625 (GCVE-0-2021-37625)
Vulnerability from cvelistv5 – Published: 2021-08-05 17:15 – Updated: 2024-08-04 01:23
VLAI
EPSS
VEX
Title
Incorrect Check of Function Return Value in Skytable
Summary
Skytable is an open source NoSQL database. In versions prior to 0.6.4 an incorrect check of return value of the accept function in the run-loop for a TCP socket/TLS socket/TCP+TLS multi-socket causes an early exit from the run loop that should continue infinitely unless terminated by a local user, effectively causing the whole database server to shut down. This has severe impact and can be used to easily cause DoS attacks without the need to use much bandwidth. The attack vectors include using an incomplete TLS connection for example by not providing the certificate for the connection and using a specially crafted TCP packet that triggers the application layer backoff algorithm.
Severity
7.5 (High)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/skytable/skytable/security/adv… | x_refsource_CONFIRM |
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| https://security.skytable.io/ve/s/00002.html | x_refsource_MISC |
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CVE-2021-34585 (GCVE-0-2021-34585)
Vulnerability from cvelistv5 – Published: 2021-10-26 09:55 – Updated: 2024-09-16 21:58
VLAI
EPSS
VEX
Title
CODESYS V2 web server: crafted requests could trigger a pointer dereference with an invalid address (DoS)
Summary
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.
Severity
7.5 (High)
CWE
- CWE-252 - Unchecked Return Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://customers.codesys.com/index.php?eID=dumpF… | x_refsource_CONFIRM |
| https://www.tenable.com/security/research/tra-2021-47 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CODESYS | CODESYS V2 |
Affected:
all web servers , < V1.1.9.22
(custom)
|
Date Public
2021-10-25 00:00
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CVE-2021-31366 (GCVE-0-2021-31366)
Vulnerability from cvelistv5 – Published: 2021-10-19 18:16 – Updated: 2024-09-17 04:25
VLAI
EPSS
VEX
Title
Junos OS: MX Series: In subscriber management / BBE configuration authd can crash if a subscriber with a specific username tries to login leading to a DoS
Summary
An Unchecked Return Value vulnerability in the authd (authentication daemon) of Juniper Networks Junos OS on MX Series configured for subscriber management / BBE allows an adjacent attacker to cause a crash by sending a specific username. This impacts authentication, authorization, and accounting (AAA) services on the MX devices and leads to a Denial of Service (DoS) condition. Continued receipted of these PPP login request will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R3-S3; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2.
Severity
6.5 (Medium)
CWE
- CWE-252
- Denial of Service (DoS)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11228 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
15.1 , < 15.1R7-S9
(custom)
Affected: 17.3 , < 17.3R3-S12 (custom) Affected: 17.4 , < 17.4R3-S5 (custom) Affected: 18.1 , < 18.1R3-S13 (custom) Affected: 18.2 , < 18.2R3-S8 (custom) Affected: 18.3 , < 18.3R3-S5 (custom) Affected: 18.4 , < 18.4R3-S9 (custom) Affected: 19.1 , < 19.1R3-S6 (custom) Affected: 19.2 , < 19.2R1-S7, 19.2R3-S3 (custom) Affected: 19.3 , < 19.3R2-S6, 19.3R3-S3 (custom) Affected: 19.4 , < 19.4R3-S3 (custom) Affected: 20.1 , < 20.1R3 (custom) Affected: 20.2 , < 20.2R3-S1 (custom) Affected: 20.3 , < 20.3R3 (custom) Affected: 20.4 , < 20.4R3 (custom) Affected: 21.1 , < 21.1R2 (custom) |
Date Public
2021-10-13 00:00
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CVE-2021-3659 (GCVE-0-2021-3659)
Vulnerability from cvelistv5 – Published: 2022-08-22 14:49 – Updated: 2024-08-03 17:01
VLAI
EPSS
VEX
Summary
A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
- CWE-252 - - Unchecked Return Value, CWE-476 - NULL Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1975949 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2021-3659 | x_refsource_MISC |
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"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Mitigation MIT-53
Implementation
Check the results of all functions that return a value and verify that the value is expected.
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
Implementation
Ensure that you account for all possible return values from the function.
Mitigation
Implementation
When designing a function, make sure you return a value or throw an exception in case of an error.
No CAPEC attack patterns related to this CWE.