Common Weakness Enumeration

CWE-122

Allowed

Heap-based Buffer Overflow

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

4106 vulnerabilities reference this CWE, most recent first.

CVE-2021-34312 (GCVE-0-2021-34312)

Vulnerability from cvelistv5 – Published: 2021-07-13 11:03 – Updated: 2024-08-04 00:05
VLAI
Summary
A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The Tiff_loader.dll library in affected applications lacks proper validation of user-supplied data when parsing TIFF files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13353)
Severity
No CVSS data available.
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Siemens JT2Go Affected: All versions < V13.2
Create a notification for this product.
Siemens Teamcenter Visualization Affected: All versions < V13.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-33023 (GCVE-0-2021-33023)

Vulnerability from cvelistv5 – Published: 2021-10-18 12:41 – Updated: 2024-09-17 03:49
VLAI
Title
Advantech WebAccess
Summary
Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-122 - HEAP-BASED BUFFER OVERFLOW CWE-122
Assigner
References
Impacted products
Vendor Product Version
Advantech WebAccess Affected: All , ≤ 9.02 (custom)
Create a notification for this product.
Date Public
2021-10-12 00:00
Credits
Natnael Samson, @NattiSamson, working with Trend Micro’s Zero Day Initiative, reported these vulnerabilities to CISA.
Show details on NVD website
To clipboard 

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CVE-2021-33007 (GCVE-0-2021-33007)

Vulnerability from cvelistv5 – Published: 2021-08-30 16:29 – Updated: 2024-08-03 23:42
VLAI
Summary
A heap-based buffer overflow in Delta Electronics TPEditor: v1.98.06 and prior may be exploited by processing a specially crafted project file. Successful exploitation of this vulnerability may allow an attacker to execute arbitrary code.
Severity
No CVSS data available.
CWE
  • CWE-122 - HEAP-BASED BUFFER OVERFLOW CWE-122
Assigner
References
Impacted products
Vendor Product Version
n/a Delta Electronics TPEditor Affected: TPEditor: v1.98.06 and prior
Show details on NVD website
To clipboard 

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CVE-2021-33000 (GCVE-0-2021-33000)

Vulnerability from cvelistv5 – Published: 2021-06-24 17:30 – Updated: 2024-08-03 23:42
VLAI
Summary
Parsing a maliciously crafted project file may cause a heap-based buffer overflow, which may allow an attacker to perform arbitrary code execution. User interaction is required on the WebAccess HMI Designer (versions 2.1.9.95 and prior).
Severity
No CVSS data available.
CWE
  • CWE-122 - HEAP-BASED BUFFER OVERFLOW CWE-122
Assigner
References
Impacted products
Vendor Product Version
n/a WebAccess HMI Designer Affected: versions 2.1.9.95 and prior
Show details on NVD website
To clipboard 

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CVE-2021-32959 (GCVE-0-2021-32959)

Vulnerability from cvelistv5 – Published: 2021-09-23 13:32 – Updated: 2024-08-03 23:33
VLAI
Title
AVEVA SuiteLink Server Buffer Overflow
Summary
Heap-based buffer overflow in SuiteLink server while processing commands 0x05/0x06
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Credits
Sharon Brizinov of Claroty reported these vulnerabilities to AVEVA
Show details on NVD website
To clipboard 

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CVE-2021-32626 (GCVE-0-2021-32626)

Vulnerability from cvelistv5 – Published: 2021-10-04 17:30 – Updated: 2024-08-03 23:25
VLAI
Title
Lua scripts can overflow the heap-based Lua stack in Redis
Summary
Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with heap corruption and potentially remote code execution. This problem exists in all versions of Redis with Lua scripting support, starting from 2.6. The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. For users unable to update an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
redis redis Affected: >= 6.2.0, < 6.2.6
Affected: >= 6.0.0, < 6.0.16
Affected: >= 2.6.0, < 5.0.14
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2021-31986 (GCVE-0-2021-31986)

Vulnerability from cvelistv5 – Published: 2021-10-05 21:45 – Updated: 2024-11-08 08:21
VLAI
Summary
User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.
Severity
No CVSS data available.
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Axis Communications AB AXIS OS Affected: AXIS OS 6.40 or later
Create a notification for this product.
Show details on NVD website
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CVE-2021-31485 (GCVE-0-2021-31485)

Vulnerability from cvelistv5 – Published: 2021-06-15 19:11 – Updated: 2024-08-03 23:03
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DWF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12711.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
zdi
References
Impacted products
Vendor Product Version
OpenText Brava! Desktop Affected: 16.6.3.84
Create a notification for this product.
Credits
rgod
Show details on NVD website
To clipboard 

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CVE-2021-31483 (GCVE-0-2021-31483)

Vulnerability from cvelistv5 – Published: 2021-06-15 19:11 – Updated: 2024-08-03 23:03
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DWF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12709.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
zdi
References
Impacted products
Vendor Product Version
OpenText Brava! Desktop Affected: 16.6.3.84
Create a notification for this product.
Credits
rgod
Show details on NVD website
To clipboard 

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CVE-2021-31478 (GCVE-0-2021-31478)

Vulnerability from cvelistv5 – Published: 2021-06-15 19:11 – Updated: 2024-08-03 23:03
VLAI
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12633.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
zdi
References
Impacted products
Vendor Product Version
OpenText Brava! Desktop Affected: 16.6.3.84
Create a notification for this product.
Credits
rgod
Show details on NVD website
To clipboard 

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Mitigation

Pre-design: Use a language or compiler that performs automatic bounds checking.

Mitigation
Architecture and Design

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

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 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].
Mitigation
Implementation

Implement and perform bounds checking on input.

Mitigation
Implementation

Strategy: Libraries or Frameworks

Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.

Mitigation
Operation

Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.

CAPEC-92: Forced Integer Overflow

This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.

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