Common Weakness Enumeration
CWE-122
AllowedHeap-based Buffer Overflow
Abstraction: Variant · Status: Draft
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().
4108 vulnerabilities reference this CWE, most recent first.
CVE-2020-27752 (GCVE-0-2020-27752)
Vulnerability from cvelistv5 – Published: 2020-12-08 21:57 – Updated: 2024-08-04 16:18
VLAI
EPSS
VEX
Summary
A flaw was found in ImageMagick in MagickCore/quantum-private.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger a heap buffer overflow. This would most likely lead to an impact to application availability, but could potentially lead to an impact to data integrity as well. This flaw affects ImageMagick versions prior to 7.0.9-0.
Severity
No CVSS data available.
CWE
- CWE-122 - >CWE-787
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1894226 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | ImageMagick |
Affected:
prior to 7.0.9-0
|
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CVE-2020-27297 (GCVE-0-2020-27297)
Vulnerability from cvelistv5 – Published: 2021-01-26 19:06 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
The affected product is vulnerable to a heap-based buffer overflow, which may allow an attacker to manipulate memory with controlled values and remotely execute code on the OPC UA Tunneller (versions prior to 6.3.0.8233).
Severity
No CVSS data available.
CWE
- CWE-122 - HEAP-BASED BUFFER OVERFLOW CWE-122
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-021-03 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | OPC UA Tunneller |
Affected:
All versions prior to 6.3.0.8233
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CVE-2020-27263 (GCVE-0-2020-27263)
Vulnerability from cvelistv5 – Published: 2021-01-13 23:30 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
KEPServerEX: v6.0 to v6.9, ThingWorx Kepware Server: v6.8 and v6.9, ThingWorx Industrial Connectivity: All versions, OPC-Aggregator: All versions, Rockwell Automation KEPServer Enterprise, GE Digital Industrial Gateway Server: v7.68.804 and v7.66, Software Toolbox TOP Server: All 6.x versions, are vulnerable to a heap-based buffer overflow. Opening a specifically crafted OPC UA message could allow an attacker to crash the server and potentially leak data.
Severity
No CVSS data available.
CWE
- CWE-122 - HEAP-BASED BUFFER OVERFLOW CWE-122
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-20-352-02 | x_refsource_MISC |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | PTC Kepware KEPServerEX |
Affected:
v6.0 to v6.9
|
|
| n/a | ThingWorx Kepware Server |
Affected:
v6.8 and v6.9
|
|
| n/a | ThingWorx Industrial Connectivity |
Affected:
All versions
|
|
| n/a | OPC-Aggregator |
Affected:
All versions
|
|
| n/a | Rockwell Automation KEPServer Enterprise |
Affected:
All versions
|
|
| n/a | GE Digital Industrial Gateway Server |
Affected:
v7.68.804
Affected: v7.66 |
|
| n/a | Software Toolbox TOP Server |
Affected:
All 6.x versions
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CVE-2020-27255 (GCVE-0-2020-27255)
Vulnerability from cvelistv5 – Published: 2020-11-26 01:38 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious set attribute requests, which could result in the leaking of sensitive information. This information disclosure could lead to the bypass of address space layout randomization (ASLR).
Severity
No CVSS data available.
CWE
- CWE-122 - HEAP-BASED BUFFER OVERFLOW CWE-122
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-20-329-01 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | FactoryTalk Linx |
Affected:
Version 6.11 and prior
|
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CVE-2020-27251 (GCVE-0-2020-27251)
Vulnerability from cvelistv5 – Published: 2020-11-26 01:40 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious port ranges, which could result in remote code execution.
Severity
No CVSS data available.
CWE
- CWE-122 - HEAP-BASED BUFFER OVERFLOW CWE-122
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-20-329-01 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | FactoryTalk Linx |
Affected:
Version 6.11 and prior
|
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CVE-2020-27250 (GCVE-0-2020-27250)
Vulnerability from cvelistv5 – Published: 2021-02-10 21:39 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
In SoftMaker Software GmbH SoftMaker Office PlanMaker 2021 (Revision 1014), a specially crafted document can cause the document parser to copy data from a particular record type into a static-sized buffer within an object that is smaller than the size used for the copy, which will cause a heap-based buffer overflow at Version/Instance 0x0005 and 0x0016. An attacker can entice the victim to open a document to trigger this vulnerability.
Severity
8.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
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Impacted products
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CVE-2020-27249 (GCVE-0-2020-27249)
Vulnerability from cvelistv5 – Published: 2021-02-04 06:14 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
A specially crafted document can cause the document parser to copy data from a particular record type into a static-sized buffer within an object that is smaller than the size used for the copy, which will cause a heap-based buffer overflow. In version/Instance 0x0004 and 0x0015, an attacker can entice the victim to open a document to trigger this vulnerability. This affects SoftMaker Software GmbH SoftMaker Office PlanMaker 2021 (Revision 1014).
Severity
8.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
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Impacted products
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CVE-2020-27248 (GCVE-0-2020-27248)
Vulnerability from cvelistv5 – Published: 2021-02-04 06:13 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
A specially crafted document can cause the document parser to copy data from a particular record type into a static-sized buffer within an object that is smaller than the size used for the copy, which will cause a heap-based buffer overflow. In version/Instance 0x0003 and 0x0014, an attacker can entice the victim to open a document to trigger this vulnerability. This affects SoftMaker Software GmbH SoftMaker Office PlanMaker 2021 (Revision 1014).
Severity
8.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
Impacted products
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CVE-2020-27247 (GCVE-0-2020-27247)
Vulnerability from cvelistv5 – Published: 2021-02-04 06:13 – Updated: 2024-08-04 16:11
VLAI
EPSS
VEX
Summary
A specially crafted document can cause the document parser to copy data from a particular record type into a static-sized buffer within an object that is smaller than the size used for the copy, which will cause a heap-based buffer overflow. In version/Instance 0x0002, an attacker can entice the victim to open a document to trigger this vulnerability. This affects SoftMaker Software GmbH SoftMaker Office PlanMaker 2021 (Revision 1014).
Severity
8.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
Impacted products
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CVE-2020-26994 (GCVE-0-2020-26994)
Vulnerability from cvelistv5 – Published: 2021-01-12 20:18 – Updated: 2024-08-04 16:03
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applications lack proper validation of user-supplied data when parsing of PCX files. This could result in a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process.
Severity
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | JT2Go |
Affected:
All versions < V13.1.0
|
|
| Siemens | Teamcenter Visualization |
Affected:
All versions < V13.1.0
|
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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.