CWE-252
Unchecked Return Value
The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.
CVE-2023-6918 (GCVE-0-2023-6918)
Vulnerability from cvelistv5
Published
2023-12-18 23:27
Modified
2025-09-02 16:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-252 - Unchecked Return Value
Summary
A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:2504 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:3233 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2023-6918 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2254997 | issue-tracking, x_refsource_REDHAT | |
| https://www.libssh.org/2023/12/18/libssh-0-10-6-and-libssh-0-9-8-security-releases/ | ||
| https://www.libssh.org/security/advisories/CVE-2023-6918.txt |
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Red Hat | Red Hat Enterprise Linux 8 |
Unaffected: 0:0.9.6-14.el8 < * cpe:/o:redhat:enterprise_linux:8::baseos cpe:/a:redhat:enterprise_linux:8::appstream |
|||||||||||||||||||||||||||||||
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CVE-2024-45775 (GCVE-0-2024-45775)
Vulnerability from cvelistv5
Published
2025-02-18 19:25
Modified
2025-08-30 22:17
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-252 - Unchecked Return Value
Summary
A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls grub_arg_list_alloc() to allocate memory for the grub's argument list. However, it fails to check in case the memory allocation fails. Once the allocation fails, a NULL point will be processed by the parse_option() function, leading grub to crash or, in some rare scenarios, corrupt the IVT data.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2025:6990 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2024-45775 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2337481 | issue-tracking, x_refsource_REDHAT |
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ |
Version: 0 ≤ 2.12 |
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CVE-2025-1394 (GCVE-0-2025-1394)
Vulnerability from cvelistv5
Published
2025-07-30 08:11
Modified
2025-08-08 04:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-252 - Unchecked Return Value
Summary
Failure to handle the error status returned by the buffer management APIs in SiLabs EmberZNet Zigbee stack may result in data leaks or potential Denial of Service (DoS).
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-7.5.0.0.pdf | release-notes | |
| https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-8.0.3.0.pdf | release-notes | |
| https://www.silabs.com/documents/public/release-notes/emberznet-release-notes-8.1.0.0.pdf | release-notes | |
| https://community.silabs.com/068Vm00000SkHNX | vendor-advisory, permissions-required |
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ▼ | silabs.com | Zigbee Stack |
Version: 0 ≤ 4.4.5 |
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CVE-2025-54571 (GCVE-0-2025-54571)
Vulnerability from cvelistv5
Published
2025-08-05 23:39
Modified
2025-08-06 20:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-252 - Unchecked Return Value
Summary
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.11
and below, an attacker can override the HTTP response’s Content-Type, which could lead to several issues depending on the HTTP scenario. For example, we have demonstrated the potential for XSS and arbitrary script source code disclosure in the latest version of mod_security2. This issue is fixed in version 2.9.12.
References
| ▼ | URL | Tags |
|---|---|---|
| https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-cg44-9m43-3f9v | x_refsource_CONFIRM | |
| https://github.com/owasp-modsecurity/ModSecurity/issues/2514 | x_refsource_MISC | |
| https://github.com/owasp-modsecurity/ModSecurity/commit/6d7e8eb18f2d7d368fb8e29516fcdeaeb8d349b8 | x_refsource_MISC |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| owasp-modsecurity | ModSecurity |
Version: < 2.9.12 |
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CVE-2025-55146 (GCVE-0-2025-55146)
Vulnerability from cvelistv5
Published
2025-09-09 15:28
Modified
2025-09-09 17:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-252 - Unchecked Return Value
Summary
An unchecked return value in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti ZTA Gateway before 2.8R2.3-723 and Ivanti Neurons for Secure Access before 22.8R1.4 (Fix deployed on 02-Aug-2025) allows a remote authenticated attacker with admin privileges to trigger a denial of service.
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | Ivanti | Connect Secure | |||||||||||||||||
|
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Mitigation ID: MIT-53
Phase: Implementation
Description:
- Check the results of all functions that return a value and verify that the value is expected.
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: Implementation
Description:
- Ensure that you account for all possible return values from the function.
Mitigation
Phase: Implementation
Description:
- 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.