Common Weakness Enumeration

CWE-121

Allowed

Stack-based Buffer Overflow

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

5275 vulnerabilities reference this CWE, most recent first.

CVE-2021-22637 (GCVE-0-2021-22637)

Vulnerability from cvelistv5 – Published: 2021-01-27 19:09 – Updated: 2024-08-03 18:44
VLAI
Summary
Multiple stack-based buffer overflow issues have been identified in the way the application processes project files, allowing an attacker to craft a special project file that may allow arbitrary code execution on the Tellus Lite V-Simulator and V-Server Lite (versions prior to 4.0.10.0).
Severity
No CVSS data available.
CWE
  • CWE-121 - STACK-BASED BUFFER OVERFLOW CWE-121
Assigner
References
Impacted products
Vendor Product Version
n/a Tellus Lite V-Simulator and V-Server Lite Affected: Versions prior to 4.0.10.0
Show details on NVD website
To clipboard 

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CVE-2021-21961 (GCVE-0-2021-21961)

Vulnerability from cvelistv5 – Published: 2022-02-04 22:29 – Updated: 2025-04-15 19:11
VLAI
Summary
A stack-based buffer overflow vulnerability exists in the NBNS functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted network packet can lead to remote code execution. An attacker can send a malicious packet to trigger this vulnerability.
Severity
10 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Sealevel Affected: Sealevel Systems, Inc. SeaConnect 370W v1.3.34
Show details on NVD website
To clipboard 

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CVE-2021-21960 (GCVE-0-2021-21960)

Vulnerability from cvelistv5 – Published: 2022-02-04 22:29 – Updated: 2025-04-15 19:11
VLAI
Summary
A stack-based buffer overflow vulnerability exists in both the LLMNR functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted network packet can lead to remote code execution. An attacker can send a malicious packet to trigger this vulnerability.
Severity
10 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Sealevel Affected: Sealevel Systems, Inc. SeaConnect 370W v1.3.34
Show details on NVD website
To clipboard 

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CVE-2021-21906 (GCVE-0-2021-21906)

Vulnerability from cvelistv5 – Published: 2021-12-22 18:06 – Updated: 2024-08-03 18:30
VLAI
Summary
Stack-based buffer overflow vulnerability exists in how the CMA readfile function of Garrett Metal Detectors iC Module CMA Version 5.0 is used at various locations. The Garrett iC Module exposes an authenticated CLI over TCP port 6877. This interface is used by a secondary GUI client, called “CMA Connect”, to interact with the iC Module on behalf of the user. Every time a user submits a password to the CLI password prompt, the buffer containing their input is passed as the password parameter to the checkPassword function.
Severity
8.2 (High)
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Garrett Metal Detectors Affected: Garrett Metal Detectors iC Module CMA Version 5.0
Show details on NVD website
To clipboard 

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CVE-2021-21905 (GCVE-0-2021-21905)

Vulnerability from cvelistv5 – Published: 2021-12-22 18:06 – Updated: 2024-08-03 18:30
VLAI
Summary
Stack-based buffer overflow vulnerability exists in how the CMA readfile function of Garrett Metal Detectors iC Module CMA Version 5.0 is used at various locations. The Garrett iC Module exposes an authenticated CLI over TCP port 6877. This interface is used by a secondary GUI client, called “CMA Connect”, to interact with the iC Module on behalf of the user. After a client successfully authenticates, they can send plaintext commands to manipulate the device.
Severity
8.2 (High)
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Garrett Metal Detectors Affected: Garrett Metal Detectors iC Module CMA Version 5.0
Show details on NVD website
To clipboard 

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CVE-2021-21892 (GCVE-0-2021-21892)

Vulnerability from cvelistv5 – Published: 2021-12-22 18:06 – Updated: 2024-08-03 18:30
VLAI
Summary
A stack-based buffer overflow vulnerability exists in the Web Manager FsUnmount functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Severity
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Lantronix Affected: Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)
Show details on NVD website
To clipboard 

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CVE-2021-21891 (GCVE-0-2021-21891)

Vulnerability from cvelistv5 – Published: 2021-12-22 18:06 – Updated: 2024-08-03 18:30
VLAI
Summary
A stack-based buffer overflow vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution in the vulnerable portion of the branch (deletefile). An attacker can make an authenticated HTTP request to trigger this vulnerability.
Severity
9.1 (Critical)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Lantronix Affected: Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)
Show details on NVD website
To clipboard 

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CVE-2021-21890 (GCVE-0-2021-21890)

Vulnerability from cvelistv5 – Published: 2021-12-22 18:06 – Updated: 2024-08-03 18:30
VLAI
Summary
A stack-based buffer overflow vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution in the vulnerable portion of the branch (deletedir). An attacker can make an authenticated HTTP request to trigger this vulnerability.
Severity
9.1 (Critical)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Lantronix Affected: Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)
Show details on NVD website
To clipboard 

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CVE-2021-21889 (GCVE-0-2021-21889)

Vulnerability from cvelistv5 – Published: 2021-12-22 18:06 – Updated: 2024-08-03 18:30
VLAI
Summary
A stack-based buffer overflow vulnerability exists in the Web Manager Ping functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Severity
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Lantronix Affected: Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)
Show details on NVD website
To clipboard 

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CVE-2021-21887 (GCVE-0-2021-21887)

Vulnerability from cvelistv5 – Published: 2021-12-22 18:06 – Updated: 2024-08-03 18:30
VLAI
Summary
A stack-based buffer overflow vulnerability exists in the Web Manager SslGenerateCSR functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Severity
9.1 (Critical)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
n/a Lantronix Affected: Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)
Show details on NVD website
To clipboard 

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Mitigation MIT-10
Operation Build and Compilation

Strategy: Environment Hardening

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation
Architecture and Design

Use an abstraction library to abstract away risky APIs. Not a complete solution.

Mitigation
Implementation

Implement and perform bounds checking on input.

Mitigation
Implementation

Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.

Mitigation MIT-11
Operation Build and Compilation

Strategy: Environment Hardening

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].

No CAPEC attack patterns related to this CWE.

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