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-2022-23537 (GCVE-0-2022-23537)
Vulnerability from cvelistv5 – Published: 2022-12-20 18:50 – Updated: 2025-11-04 16:09
VLAI
EPSS
VEX
Title
PJSIP vulnerable to heap buffer overflow when decoding STUN message
Summary
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. Buffer overread is possible when parsing a specially crafted STUN message with unknown attribute. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as a commit in the master branch (2.13.1).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
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CVE-2022-22188 (GCVE-0-2022-22188)
Vulnerability from cvelistv5 – Published: 2022-04-14 15:50 – Updated: 2024-09-16 16:57
VLAI
EPSS
VEX
Title
Junos OS: QFX5100/QFX5110/QFX5120/QFX5200/QFX5210/EX4600/EX4650 Series: When storm control profiling is enabled and a device is under an active storm, a Heap-based Buffer Overflow in the PFE will cause a device to hang.
Summary
An Uncontrolled Memory Allocation vulnerability leading to a Heap-based Buffer Overflow in the packet forwarding engine (PFE) of Juniper Networks Junos OS allows a network-based unauthenticated attacker to flood the device with traffic leading to a Denial of Service (DoS). The device must be configured with storm control profiling limiting the number of unknown broadcast, multicast, or unicast traffic to be vulnerable to this issue. This issue affects: Juniper Networks Junos OS on QFX5100/QFX5110/QFX5120/QFX5200/QFX5210/EX4600/EX4650 Series; 20.2 version 20.2R1 and later versions prior to 20.2R2. This issue does not affect: Juniper Networks Junos OS versions prior to 20.2R1.
Severity
7.5 (High)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA69497 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 20.2R1
(custom)
Affected: 20.2R1 , < 20.2* (custom) |
Date Public
2022-04-13 00:00
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CVE-2022-21214 (GCVE-0-2022-21214)
Vulnerability from cvelistv5 – Published: 2022-04-12 16:11 – Updated: 2025-04-16 17:56
VLAI
EPSS
VEX
Title
ICSA-22-090-03 Fuji Electric Alpha5
Summary
The affected product is vulnerable to a heap-based buffer overflow, which may lead to code execution.
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
| URL | Tags |
|---|---|
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Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Fuji Electric | Alpha5 |
Affected:
All , < 4.3
(custom)
|
Date Public
2022-03-31 00:00
Credits
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CVE-2022-20946 (GCVE-0-2022-20946)
Vulnerability from cvelistv5 – Published: 2022-11-10 17:29 – Updated: 2024-08-03 02:31
VLAI
EPSS
VEX
Summary
A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to a memory handling error that occurs when GRE traffic is processed. An attacker could exploit this vulnerability by sending a crafted GRE payload through an affected device. A successful exploit could allow the attacker to cause the device to restart, resulting in a DoS condition.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM"]
This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication.
Severity
8.6 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software |
Affected:
6.6.0
Affected: 6.6.0.1 Affected: 6.6.1 Affected: 6.6.3 Affected: 6.6.4 Affected: 6.6.5 Affected: 6.6.5.1 Affected: 6.6.5.2 Affected: 6.4.0 Affected: 6.4.0.1 Affected: 6.4.0.3 Affected: 6.4.0.2 Affected: 6.4.0.4 Affected: 6.4.0.5 Affected: 6.4.0.6 Affected: 6.4.0.7 Affected: 6.4.0.8 Affected: 6.4.0.9 Affected: 6.4.0.10 Affected: 6.4.0.11 Affected: 6.4.0.12 Affected: 6.4.0.13 Affected: 6.4.0.14 Affected: 6.4.0.15 Affected: 6.7.0 Affected: 6.7.0.1 Affected: 6.7.0.2 Affected: 6.7.0.3 Affected: 7.0.0 Affected: 7.0.0.1 Affected: 7.0.1 Affected: 7.0.1.1 Affected: 7.0.2 Affected: 7.0.2.1 Affected: 7.0.3 Affected: 7.1.0 Affected: 7.1.0.1 Affected: 7.1.0.2 |
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CVE-2022-20737 (GCVE-0-2022-20737)
Vulnerability from cvelistv5 – Published: 2022-05-03 03:16 – Updated: 2024-11-06 16:19
VLAI
EPSS
VEX
Title
Cisco Adaptive Security Appliance Software Clientless SSL VPN Heap Overflow Vulnerability
Summary
A vulnerability in the handler for HTTP authentication for resources accessed through the Clientless SSL VPN portal of Cisco Adaptive Security Appliance (ASA) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device or to obtain portions of process memory from an affected device. This vulnerability is due to insufficient bounds checking when parsing specific HTTP authentication messages. An attacker could exploit this vulnerability by sending malicious traffic to an affected device acting as a VPN Gateway. To send this malicious traffic, an attacker would need to control a web server that can be accessed through the Clientless SSL VPN portal. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition, or to retrieve bytes from the device process memory that may contain sensitive information.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
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 Adaptive Security Appliance (ASA) Software |
Affected:
n/a
|
Date Public
2022-04-27 00:00
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CVE-2022-4584 (GCVE-0-2022-4584)
Vulnerability from cvelistv5 – Published: 2022-12-17 00:00 – Updated: 2024-08-03 01:41
VLAI
EPSS
VEX
Title
Axiomatic Bento4 mp42aac heap-based overflow
Summary
A vulnerability was found in Axiomatic Bento4 up to 1.6.0-639. It has been rated as critical. Affected by this issue is some unknown functionality of the component mp42aac. The manipulation leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-216170 is the identifier assigned to this vulnerability.
Severity
6.3 (Medium)
6.3 (Medium)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.216170 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.216170 | signaturepermissions-required |
| https://github.com/axiomatic-systems/Bento4/issues/818 | issue-tracking |
| https://github.com/axiomatic-systems/Bento4/files… | exploit |
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CVE-2022-4141 (GCVE-0-2022-4141)
Vulnerability from cvelistv5 – Published: 2022-11-25 00:00 – Updated: 2025-11-03 20:35
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in vim/vim
Summary
Heap based buffer overflow in vim/vim 9.0.0946 and below by allowing an attacker to CTRL-W gf in the expression used in the RHS of the substitute command.
Severity
7.3 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
7 references
Impacted products
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CVE-2022-3520 (GCVE-0-2022-3520)
Vulnerability from cvelistv5 – Published: 2022-12-02 00:00 – Updated: 2025-04-23 18:32
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in vim/vim
Summary
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0765.
Severity
7.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
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CVE-2022-3491 (GCVE-0-2022-3491)
Vulnerability from cvelistv5 – Published: 2022-12-03 00:00 – Updated: 2025-04-23 18:26
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in vim/vim
Summary
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0742.
Severity
4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
Impacted products
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CVE-2022-3437 (GCVE-0-2022-3437)
Vulnerability from cvelistv5 – Published: 2023-01-12 00:00 – Updated: 2024-10-28 18:59
VLAI
EPSS
VEX
Summary
A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the application, possibly resulting in a denial of service (DoS) attack.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - - Heap-based Buffer Overflow, CWE-787 - Out-of-bounds Write
Assigner
References
8 references
Impacted products
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"references": [
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2137774"
},
{
"url": "https://www.samba.org/samba/security/CVE-2022-3437.html"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2022-3437"
},
{
"name": "[oss-security] 20230208 [vs] heimdal: CVE-2022-45142: signature validation failure",
"tags": [
"mailing-list"
],
"url": "http://www.openwall.com/lists/oss-security/2023/02/08/1"
},
{
"url": "https://security.netapp.com/advisory/ntap-20230216-0008/"
},
{
"name": "GLSA-202309-06",
"tags": [
"vendor-advisory"
],
"url": "https://security.gentoo.org/glsa/202309-06"
},
{
"name": "GLSA-202310-06",
"tags": [
"vendor-advisory"
],
"url": "https://security.gentoo.org/glsa/202310-06"
},
{
"name": "[debian-lts-announce] 20240422 [SECURITY] [DLA 3792-1] samba security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2022-3437",
"datePublished": "2023-01-12T00:00:00.000Z",
"dateReserved": "2022-10-10T00:00:00.000Z",
"dateUpdated": "2024-10-28T18:59:39.543Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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.