CWE-401
Missing Release of Memory after Effective Lifetime
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
CVE-2021-20214 (GCVE-0-2021-20214)
Vulnerability from cvelistv5 – Published: 2021-03-25 18:57 – Updated: 2024-08-03 17:30
VLAI
Summary
A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the client-tags CGI handler when client tags are configured and memory allocations fail can lead to a system crash.
Severity
No CVSS data available.
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.privoxy.org/3.0.29/user-manual/whatsn… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1928742 | x_refsource_MISC |
| https://security.gentoo.org/glsa/202107-16 | vendor-advisoryx_refsource_GENTOO |
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CVE-2021-20215 (GCVE-0-2021-20215)
Vulnerability from cvelistv5 – Published: 2021-03-25 18:57 – Updated: 2024-08-03 17:30
VLAI
Summary
A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the show-status CGI handler when memory allocations fail can lead to a system crash.
Severity
No CVSS data available.
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.privoxy.org/3.0.29/user-manual/whatsn… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1928746 | x_refsource_MISC |
| https://security.gentoo.org/glsa/202107-16 | vendor-advisoryx_refsource_GENTOO |
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CVE-2021-23218 (GCVE-0-2021-23218)
Vulnerability from cvelistv5 – Published: 2022-01-10 15:05 – Updated: 2024-08-03 19:05
VLAI
Title
Memory Leak in Mirantis Container Runtime (MCR) running in FIPS mode causes a Denial of Service
Summary
When running with FIPS mode enabled, Mirantis Container Runtime 20.10.8 leaks memory during TLS Handshakes which could be abused to cause a denial of service.
Severity
5.3 (Medium)
CWE
- CWE-401 - Improper Release of Memory Before Removing Last Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Mirantis/security/blob/main/ad… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mirantis | Mirantis Container Runtime |
Affected:
20.10.8
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CVE-2021-27386 (GCVE-0-2021-27386)
Vulnerability from cvelistv5 – Published: 2021-05-12 13:18 – Updated: 2024-08-03 20:48
VLAI
Summary
A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Outdoor Panels V16 7\" & 15\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI Comfort Panels V15 4\" - 22\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Panels V16 4\" - 22\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Update 6), SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V16 Update 4), SIMATIC WinCC Runtime Advanced V15 (All versions < V15.1 Update 6), SIMATIC WinCC Runtime Advanced V16 (All versions < V16 Update 4), SINAMICS GH150 (All versions), SINAMICS GL150 (with option X30) (All versions), SINAMICS GM150 (with option X30) (All versions), SINAMICS SH150 (All versions), SINAMICS SL150 (All versions), SINAMICS SM120 (All versions), SINAMICS SM150 (All versions), SINAMICS SM150i (All versions). SmartVNC has a heap allocation leak vulnerability in the device layout handler on client side, which could result in a Denial-of-Service condition.
Severity
No CVSS data available.
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12 | x_refsource_MISC |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
Impacted products
16 products
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CVE-2021-31367 (GCVE-0-2021-31367)
Vulnerability from cvelistv5 – Published: 2021-10-19 18:16 – Updated: 2024-09-16 21:08
VLAI
Title
Junos OS: PTX Series: An FPC heap memory leak will be triggered by certain Flowspec route operations which can lead to an FPC crash
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows an adjacent attacker to cause a Denial of Service (DoS) by sending genuine BGP flowspec packets which cause an FPC heap memory leak. Once having run out of memory the FPC will crash and restart along with a core dump. Continued receipted of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS All versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 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 19.4R1-S4, 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 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. Juniper Networks Junos Evolved is not affected.
Severity
6.5 (Medium)
CWE
- CWE-401 - Improper Release of Memory Before Removing Last Reference
- Denial of Service (DoS)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11229 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
unspecified , < 18.4R3-S9
(custom)
Affected: 19.1 , < 19.1R3-S7 (custom) Affected: 19.2 , < 19.2R1-S7, 19.2R3-S3 (custom) Affected: 19.3 , < 19.3R2-S6, 19.3R3-S3 (custom) Affected: 19.4 , < 19.4R1-S4, 19.4R3-S6 (custom) Affected: 20.1 , < 20.1R2-S2, 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-2021-33645 (GCVE-0-2021-33645)
Vulnerability from cvelistv5 – Published: 2022-08-09 00:00 – Updated: 2025-11-03 20:33
VLAI
Summary
The th_read() function doesn’t free a variable t->th_buf.gnu_longlink after allocating memory, which may cause a memory leak.
Severity
No CVSS data available.
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://www.openeuler.org/en/security/safety-bull… | |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
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CVE-2021-33646 (GCVE-0-2021-33646)
Vulnerability from cvelistv5 – Published: 2022-08-09 00:00 – Updated: 2025-11-03 20:33
VLAI
Summary
The th_read() function doesn’t free a variable t->th_buf.gnu_longname after allocating memory, which may cause a memory leak.
Severity
No CVSS data available.
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://www.openeuler.org/en/security/safety-bull… | |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
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CVE-2021-34431 (GCVE-0-2021-34431)
Vulnerability from cvelistv5 – Published: 2021-07-22 13:45 – Updated: 2024-08-04 00:12
VLAI
Summary
In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.
Severity
No CVSS data available.
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Eclipse Foundation | Eclipse Mosquitto |
Affected:
1.6 , < unspecified
(custom)
Affected: unspecified , ≤ 2.0.10 (custom) |
Credits
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CVE-2021-34598 (GCVE-0-2021-34598)
Vulnerability from cvelistv5 – Published: 2021-11-10 11:22 – Updated: 2024-09-16 18:39
VLAI
Title
Phoenix Contact: FL MGUARD lack of memory release in remote logging functionality
Summary
In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 the remote logging functionality is impaired by the lack of memory release for data structures from syslog-ng when remote logging is active
Severity
7.5 (High)
CWE
- CWE-401 - Improper Release of Memory Before Removing Last Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cert.vde.com/en/advisories/VDE-2021-046/ | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PHOENIX CONTACT | FL MGUARD |
Affected:
1.4.0 , < FL MGUARD 1102 (No. 1153079)*
(custom)
Affected: 1.4.0 , < FL MGUARD 1105 (No. 1153078)* (custom) |
Date Public
2021-11-10 00:00
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CVE-2021-34698 (GCVE-0-2021-34698)
Vulnerability from cvelistv5 – Published: 2021-10-06 19:46 – Updated: 2024-11-07 21:47
VLAI
Title
Cisco Web Security Appliance Proxy Service Denial of Service Vulnerability
Summary
A vulnerability in the proxy service of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management in the proxy service of an affected device. An attacker could exploit this vulnerability by establishing a large number of HTTPS connections to the affected device. A successful exploit could allow the attacker to cause the system to stop processing new connections, which could result in a DoS condition. Note: Manual intervention may be required to recover from this situation.
Severity
8.6 (High)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Web Security Appliance (WSA) |
Affected:
n/a
|
Date Public
2021-10-06 00:00
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Mitigation ID: MIT-41
Phase: Implementation
Strategy: Libraries or Frameworks
Description:
- Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
- For example, glibc in Linux provides protection against free of invalid pointers.
- When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
- To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
Mitigation
Phase: Architecture and Design
Description:
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Phases: Architecture and Design, Build and Compilation
Description:
- Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.
No CAPEC attack patterns related to this CWE.