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().
4096 vulnerabilities reference this CWE, most recent first.
CVE-2022-3234 (GCVE-0-2022-3234)
Vulnerability from cvelistv5 – Published: 2022-09-17 00:00 – Updated: 2024-08-03 01:00
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in vim/vim
Summary
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0483.
Severity
7.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://huntr.dev/bounties/90fdf374-bf04-4386-8a2… | |
| https://github.com/vim/vim/commit/c249913edc35c0e… | |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-list |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.gentoo.org/glsa/202305-16 | vendor-advisory |
Impacted products
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CVE-2022-3160 (GCVE-0-2022-3160)
Vulnerability from cvelistv5 – Published: 2023-01-13 00:16 – Updated: 2025-01-16 22:01
VLAI
EPSS
VEX
Summary
The APDFL.dll contains an out-of-bounds write past the fixed-length
heap-based buffer while parsing specially crafted PDF files. This could
allow an attacker to execute code in the context of the current process.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | JT2Go |
Affected:
0 , < 14.1.0.5
(custom)
|
|
| Siemens | Teamcenter Visualization V13.3 |
Affected:
0 , < 13.3.0.8
(custom)
|
|
| Siemens | Teamcenter Visualization V14.0 |
Affected:
0 , < 14.0.0.4
(custom)
|
|
| Siemens | Teamcenter Visualization V14.1 |
Affected:
0 , < 14.1.0.5
(custom)
|
Date Public
2022-12-16 00:15
Credits
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CVE-2022-2991 (GCVE-0-2022-2991)
Vulnerability from cvelistv5 – Published: 2022-08-25 17:24 – Updated: 2024-08-03 00:53
VLAI
EPSS
VEX
Summary
A heap-based buffer overflow was found in the Linux kernel's LightNVM subsystem. 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. This vulnerability allows a local attacker to escalate privileges and execute arbitrary code in the context of the kernel. The attacker must first obtain the ability to execute high-privileged code on the target system to exploit this vulnerability.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/s… | x_refsource_MISC |
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CVE-2022-2948 (GCVE-0-2022-2948)
Vulnerability from cvelistv5 – Published: 2022-12-07 22:58 – Updated: 2025-04-16 17:41
VLAI
EPSS
VEX
Title
GE CIMPLICITY Heap-based Buffer Overflow
Summary
GE CIMPICITY versions 2022 and prior is
vulnerable to a heap-based buffer overflow, which could allow an attacker to execute arbitrary code.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GE | CIMPLICITY |
Affected:
0 , ≤ v2022
(custom)
|
Date Public
2022-11-22 17:00
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CVE-2022-2915 (GCVE-0-2022-2915)
Vulnerability from cvelistv5 – Published: 2022-08-26 20:30 – Updated: 2024-08-03 00:52
VLAI
EPSS
VEX
Summary
A Heap-based Buffer Overflow vulnerability in the SonicWall SMA100 appliance allows a remote authenticated attacker to cause Denial of Service (DoS) on the appliance or potentially lead to code execution. This vulnerability impacts 10.2.1.5-34sv and earlier versions.
Severity
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.global.sonicwall.com/vuln-detail/SN… | x_refsource_CONFIRM |
Impacted products
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CVE-2022-2849 (GCVE-0-2022-2849)
Vulnerability from cvelistv5 – Published: 2022-08-17 00:00 – Updated: 2024-08-03 00:52
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in vim/vim
Summary
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0220.
Severity
7.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
Impacted products
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CVE-2022-2848 (GCVE-0-2022-2848)
Vulnerability from cvelistv5 – Published: 2023-03-29 00:00 – Updated: 2025-02-18 16:42
VLAI
EPSS
VEX
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX 6.11.718.0. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of text encoding conversions. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-16486.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kepware | KEPServerEX |
Affected:
6.11.718.0
|
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CVE-2022-2819 (GCVE-0-2022-2819)
Vulnerability from cvelistv5 – Published: 2022-08-15 00:00 – Updated: 2024-08-03 00:52
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in vim/vim
Summary
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0211.
Severity
7.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
Impacted products
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CVE-2022-2809 (GCVE-0-2022-2809)
Vulnerability from cvelistv5 – Published: 2022-10-27 13:09 – Updated: 2025-05-05 20:20
VLAI
EPSS
VEX
Title
Unauthenticated out of bounds heap write in bmcweb
Summary
A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. When fuzzing the multipart_parser code using AFL++ with address sanitizer enabled to find smallest memory corruptions possible. It detected problem in how multipart_parser handles unclosed http headers. If long enough http header is passed in the multipart form without colon there is one byte overwrite on heap. It can be conducted multiple times in a loop to cause DoS.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/openbmc/bmcweb |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OpenBMC Project | OpenBMC |
Affected:
2.10 , < Release*
(custom)
|
Date Public
2022-10-07 00:00
Credits
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CVE-2022-2601 (GCVE-0-2022-2601)
Vulnerability from cvelistv5 – Published: 2022-12-14 00:00 – Updated: 2026-05-27 14:04
VLAI
EPSS
VEX
Summary
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
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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.