Common Weakness Enumeration

CWE-125

Allowed

Out-of-bounds Read

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product reads data past the end, or before the beginning, of the intended buffer.

11369 vulnerabilities reference this CWE, most recent first.

CVE-2020-28394 (GCVE-0-2020-28394)

Vulnerability from cvelistv5 – Published: 2021-02-09 15:38 – Updated: 2024-08-04 16:33
VLAI
Summary
A vulnerability has been identified in JT2Go (All versions < V13.1.0.1), Teamcenter Visualization (All versions < V13.1.0.1). Affected applications lack proper validation of user-supplied data when parsing of RAS files. This could result in a memory access past the end of an allocated buffer. An attacker could leverage this vulnerability to access data in the context of the current process. (ZDI-CAN-12283)
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Siemens JT2Go Affected: All versions < V13.1.0.1
Create a notification for this product.
Siemens Teamcenter Visualization Affected: All versions < V13.1.0.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-27856 (GCVE-0-2020-27856)

Vulnerability from cvelistv5 – Published: 2021-02-09 15:46 – Updated: 2024-08-04 16:25
VLAI
Summary
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit Studio Photo 3.6.6.922. 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 CR2 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated structure. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-11434.
Severity
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Foxit Studio Photo Affected: 3.6.6.922
Create a notification for this product.
Credits
Mat Powell of Trend Micro Zero Day Initiative
Show details on NVD website
To clipboard 

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CVE-2020-27855 (GCVE-0-2020-27855)

Vulnerability from cvelistv5 – Published: 2021-02-09 15:46 – Updated: 2024-08-04 16:25
VLAI
Summary
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit Studio Photo 3.6.6.922. 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 SR2 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated structure. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-11433.
Severity
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CWE
Assigner
zdi
References
Impacted products
Vendor Product Version
Foxit Studio Photo Affected: 3.6.6.922
Create a notification for this product.
Credits
Mat Powell of Trend Micro Zero Day Initiative
Show details on NVD website
To clipboard 

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CVE-2020-27845 (GCVE-0-2020-27845)

Vulnerability from cvelistv5 – Published: 2021-01-05 17:44 – Updated: 2024-08-04 16:25
VLAI
Summary
There's a flaw in src/lib/openjp2/pi.c of openjpeg in versions prior to 2.4.0. If an attacker is able to provide untrusted input to openjpeg's conversion/encoding functionality, they could cause an out-of-bounds read. The highest impact of this flaw is to application availability.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a openjpeg Affected: openjpeg 2.4.0
Show details on NVD website
To clipboard 

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CVE-2020-27843 (GCVE-0-2020-27843)

Vulnerability from cvelistv5 – Published: 2021-01-05 17:22 – Updated: 2024-08-04 16:25
VLAI
Summary
A flaw was found in OpenJPEG in versions prior to 2.4.0. This flaw allows an attacker to provide specially crafted input to the conversion or encoding functionality, causing an out-of-bounds read. The highest threat from this vulnerability is system availability.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a openjpeg Affected: openjpeg 2.4.0
Show details on NVD website
To clipboard 

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CVE-2020-27842 (GCVE-0-2020-27842)

Vulnerability from cvelistv5 – Published: 2021-01-05 17:21 – Updated: 2024-08-04 16:25
VLAI
Summary
There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a openjpeg Affected: openjpeg 2.4.0
Show details on NVD website
To clipboard 

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CVE-2020-27840 (GCVE-0-2020-27840)

Vulnerability from cvelistv5 – Published: 2021-05-12 14:06 – Updated: 2024-08-04 16:25
VLAI
Summary
A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a samba Affected: samba 4.14.1, samba 4.13.6, samba 4.12.13
Show details on NVD website
To clipboard 

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CVE-2020-27788 (GCVE-0-2020-27788)

Vulnerability from cvelistv5 – Published: 2022-08-18 19:05 – Updated: 2024-08-04 16:25
VLAI
Summary
An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a upx Affected: Fixed in v3.96.
Show details on NVD website
To clipboard 

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CVE-2020-27737 (GCVE-0-2020-27737)

Vulnerability from cvelistv5 – Published: 2021-04-22 20:42 – Updated: 2024-08-04 16:18
VLAI
Summary
A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS response parsing functionality does not properly validate various length and counts of the records. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the memory past the allocated structure.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C
CWE
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf"
        },
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          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf"
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    "datePublished": "2021-04-22T20:42:19.000Z",
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CVE-2020-27299 (GCVE-0-2020-27299)

Vulnerability from cvelistv5 – Published: 2021-01-26 19:04 – Updated: 2024-08-04 16:11
VLAI
Summary
The affected product is vulnerable to an out-of-bounds read, which may allow an attacker to obtain and disclose sensitive data information or cause the device to crash on the OPC UA Tunneller (versions prior to 6.3.0.8233).
Severity
No CVSS data available.
CWE
  • CWE-125 - OUT-OF-BOUNDS READ CWE-125
Assigner
References
Impacted products
Vendor Product Version
n/a OPC UA Tunneller Affected: All versions prior to 6.3.0.8233
Show details on NVD website
To clipboard 

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Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
  • To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.
Mitigation
Architecture and Design

Strategy: Language Selection

Use a language that provides appropriate memory abstractions.

CAPEC-540: Overread Buffers

An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

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