Weakness (CWE)
CWE-787: Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
How to prevent it (7 mitigations)
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Requirements
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
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Operation, Build and Compilation
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.
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Implementation
Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
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Operation, Build and Compilation
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].
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Operation
Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
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Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
Source: MITRE CWE-787
6,162 results · Feed
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High 7.8
PDF-XChange Editor U3D File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
PDF-XChange Editor U3D File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vul…
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High 7.8
Tungsten Automation Power PDF JPF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Tungsten Automation Power PDF JPF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is requir…
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High 7.8
Tungsten Automation Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Tungsten Automation Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is requir…
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High 7.8
Tungsten Automation Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Tungsten Automation Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is requir…
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High 7.8
Tungsten Automation Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Tungsten Automation Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is requir…
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High 7.8
Tungsten Automation Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Tungsten Automation Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is requir…
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High 7.8
Tungsten Automation Power PDF TGA File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Tungsten Automation Power PDF TGA File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is requir…
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High 7.8
Tungsten Automation Power PDF PSD File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Tungsten Automation Power PDF PSD File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is requir…
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High 7.8
Tungsten Automation Power PDF BMP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Tungsten Automation Power PDF BMP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is requir…
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High 7.8
IrfanView JPM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView JPM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView JPM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView JPM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView DWG File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DWG File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView ARW File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView ARW File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView WBZ Plugin WB1 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView WBZ Plugin WB1 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerabil…
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High 7.8
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView DWG File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DWG File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
Luxion KeyShot OBJ File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Luxion KeyShot OBJ File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Luxion KeyShot. User interaction is required to exploit this vulnerabili…
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High 7.8
Luxion KeyShot SKP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Luxion KeyShot SKP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Luxion KeyShot. User interaction is required to exploit this vulnerabili…
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High 7.8
IrfanView PSP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView PSP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView RLE File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView RLE File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView PIC File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView PIC File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView SHP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView SHP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
IrfanView PNT File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
IrfanView PNT File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that…
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High 7.8
Kofax Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Kofax Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kofax Power PDF. User interaction is required to exploit this vulnerabi…
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Critical 9.8
OOB access in ldap_escape
In PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, 8.3.* before 8.3.14, uncontrolled long string inputs to ldap_escape() function on 32-bit systems can cause an integer overflow, resulting in an out-of-bounds write.
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Critical 9.8
In process_service_attr_req and process_service_search_attr_req of sdp_server.cc, there is an out of bounds write due t…
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Critical 9.8
In process_service_attr_req and process_service_search_attr_req of sdp_server.cc, there is an out of bounds write due t…
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High 7.5
In HeadsetInterface::ClccResponse of btif_hf.cc, there is a possible out of bounds stack write due to a missing bounds …
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Critical 9.8
In the deserialization constructor of NanoAppFilter.java, there is a possible loss of data due to type confusion. This …
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High 8.8
In bff_Scanner_addOutPos of Scanner.c, there is a possible out-of-bounds write due to an incorrect bounds check. This c…
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High 8.4
In multiple functions of ShortcutService.java, there is a possible creation of a spoofed shortcut due to a missing perm…
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High 8.8
In the xmlSnprintfElementContent function of valid.c, there is a possible out of bounds write. This could lead to remot…
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High 8.4
In startDevice of AAudioServiceStreamBase.cpp there is a possible out of bounds write due to a use after free. This cou…
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High 7.8
In CryptoPlugin::decrypt of CryptoPlugin.cpp, there is a possible out of bounds write due to a missing bounds check. Th…