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().
4176 vulnerabilities reference this CWE, most recent first.
CVE-2019-16778 (GCVE-0-2019-16778)
Vulnerability from cvelistv5 – Published: 2019-12-16 20:15 – Updated: 2024-08-05 01:24
VLAI
EPSS
VEX
Title
Heap buffer overflow in `UnsortedSegmentSum` in TensorFlow
Summary
In TensorFlow before 1.15, a heap buffer overflow in UnsortedSegmentSum can be produced when the Index template argument is int32. In this case data_size and num_segments fields are truncated from int64 to int32 and can produce negative numbers, resulting in accessing out of bounds heap memory. This is unlikely to be exploitable and was detected and fixed internally in TensorFlow 1.15 and 2.0.
Severity
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/tensorflow/tensorflow/security… | x_refsource_CONFIRM |
| https://github.com/tensorflow/tensorflow/commit/d… | x_refsource_MISC |
| https://github.com/tensorflow/tensorflow/blob/mas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tensorflow | tensorflow |
Affected:
< 1.15 , < 1.15
(custom)
|
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CVE-2019-15694 (GCVE-0-2019-15694)
Vulnerability from cvelistv5 – Published: 2019-12-26 14:59 – Updated: 2024-08-05 00:56
VLAI
EPSS
VEX
Summary
TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which could be triggered from DecodeManager::decodeRect. Vulnerability occurs due to the signdness error in processing MemOutStream. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Severity
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/CendioOssman/tigervnc/commit/0… | x_refsource_MISC |
| https://github.com/TigerVNC/tigervnc/releases/tag… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2019/… | mailing-listx_refsource_MLIST |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
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CVE-2019-15693 (GCVE-0-2019-15693)
Vulnerability from cvelistv5 – Published: 2019-12-26 14:57 – Updated: 2024-08-05 00:56
VLAI
EPSS
VEX
Summary
TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which occurs in TightDecoder::FilterGradient. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Severity
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/CendioOssman/tigervnc/commit/b… | x_refsource_MISC |
| https://github.com/TigerVNC/tigervnc/releases/tag… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2019/… | mailing-listx_refsource_MLIST |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
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CVE-2019-15692 (GCVE-0-2019-15692)
Vulnerability from cvelistv5 – Published: 2019-12-26 14:55 – Updated: 2024-08-05 00:56
VLAI
EPSS
VEX
Summary
TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow. Vulnerability could be triggered from CopyRectDecoder due to incorrect value checks. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Severity
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/CendioOssman/tigervnc/commit/9… | x_refsource_MISC |
| https://github.com/TigerVNC/tigervnc/releases/tag… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2019/… | mailing-listx_refsource_MLIST |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
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CVE-2019-15690 (GCVE-0-2019-15690)
Vulnerability from cvelistv5 – Published: 2025-01-24 17:53 – Updated: 2025-01-24 18:22
VLAI
EPSS
VEX
Summary
LibVNCServer 0.9.12 release and earlier contains heap buffer overflow vulnerability within the HandleCursorShape() function in libvncclient/cursor.c. An attacker sends cursor shapes with specially crafted dimensions, which can result in remote code execution.
Severity
8.8 (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 |
|---|---|
| https://ics-cert.kaspersky.com/vulnerabilities/kl… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| LibVNC | LibVNCServer |
Affected:
* , ≤ 0.9.12
(custom)
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CVE-2019-15679 (GCVE-0-2019-15679)
Vulnerability from cvelistv5 – Published: 2019-10-29 16:45 – Updated: 2024-08-05 00:56
VLAI
EPSS
VEX
Summary
TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially result code execution. This attack appear to be exploitable via network connectivity.
Severity
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
| URL | Tags |
|---|---|
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| https://us-cert.cisa.gov/ics/advisories/icsa-20-343-08 | x_refsource_MISC |
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CVE-2019-15678 (GCVE-0-2019-15678)
Vulnerability from cvelistv5 – Published: 2019-10-29 16:44 – Updated: 2024-08-05 00:56
VLAI
EPSS
VEX
Summary
TightVNC code version 1.3.10 contains heap buffer overflow in rfbServerCutText handler, which can potentially result code execution.. This attack appear to be exploitable via network connectivity.
Severity
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.openwall.com/lists/oss-security/2018/… | mailing-listx_refsource_MLIST |
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| https://us-cert.cisa.gov/ics/advisories/icsa-20-343-08 | x_refsource_MISC |
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CVE-2019-14901 (GCVE-0-2019-14901)
Vulnerability from cvelistv5 – Published: 2019-11-29 14:05 – Updated: 2024-08-05 00:26
VLAI
EPSS
VEX
Summary
A heap overflow flaw was found in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The vulnerability allows a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with this vulnerability is with the availability of the system. If code execution occurs, the code will run with the permissions of root. This will affect both confidentiality and integrity of files on the system.
Severity
8.8 (High)
Assigner
References
20 references
Impacted products
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CVE-2019-14896 (GCVE-0-2019-14896)
Vulnerability from cvelistv5 – Published: 2019-11-27 08:05 – Updated: 2024-08-05 00:26
VLAI
EPSS
VEX
Summary
A heap-based buffer overflow vulnerability was found in the Linux kernel, version kernel-2.6.32, in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP.
Severity
7.8 (High)
CWE
Assigner
References
16 references
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CVE-2019-14895 (GCVE-0-2019-14895)
Vulnerability from cvelistv5 – Published: 2019-11-29 13:50 – Updated: 2024-08-05 00:26
VLAI
EPSS
VEX
Summary
A heap-based buffer overflow was discovered in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service (system crash) or possibly execute arbitrary code.
Severity
CWE
Assigner
References
26 references
Impacted products
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"datePublished": "2019-11-29T13:50:14.000Z",
"dateReserved": "2019-08-10T00:00:00.000Z",
"dateUpdated": "2024-08-05T00:26:39.153Z",
"state": "PUBLISHED"
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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.