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 7.5
In l2cble_process_sig_cmd of l2c_ble.cc, there is a possible out of bounds read due to a missing bounds check. This cou…
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High 8.8CVE-2018-9411 Public exploit
In decrypt of ClearKeyCasPlugin.cpp there is a possible out-of-bounds write due to a missing bounds check. This could l…
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High 7.8
In HWCSession::SetColorModeById of hwc_session.cpp, there is a possible out of bounds write due to a missing bounds che…
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High 7.8
In cmd_flash_mmc_sparse_img of dl_commands.c, there is a possible out of bounds write due to a missing bounds check. Th…
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High 7.8
In the Mediatek Preloader, there are out of bounds reads and writes due to an exposed interface that allows arbitrary p…
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High 7.8
In download.c there is a special mode allowing user to download data into memory and causing possible memory corruption…
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Medium 6.7
In mtkscoaudio debugfs there is a possible arbitrary kernel memory write due to missing bounds check and weakened SELin…
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High 7.8
In FT_ACDK_CCT_V2_OP_ISP_SET_TUNING_PARAS of Meta_CCAP_Para.cpp, there is a possible out of bounds write due to imprope…
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High 7.8
In IMSA_Recv_Thread and VT_IMCB_Thread of ImsaClient.cpp and VideoTelephony.c, there is a possible out of bounds write …
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Critical 9.8
In impeg2d_mc_fullx_fully of impeg2d_mc.c there is a possible out of bound write due to missing bounds check. This coul…
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High 7.5
In ResStringPool::setTo of ResourceTypes.cpp, it's possible for an attacker to control the value of mStringPoolSize to …
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High 7.8CVE-2018-9338 Public exploit
In ResStringPool::setTo of ResourceTypes.cpp, there is a possible out of bounds write due to a missing bounds check. Th…
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High 7.8
media: vivid: fix buffer overwrite when using > 32 buffers
In the Linux kernel, the following vulnerability has been resolved: media: vivid: fix buffer overwrite when using > 32 buffers The maximum number of buffers that can be requested was increased to 64 for the video capture queue. But video capture used a must_b…
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High 7.8
A vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualiza…
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High 7.8
A vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualiza…
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High 7.8
A vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualiza…
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High 7.8
A vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualiza…
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High 7.8
A vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualiza…
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High 7.8
A vulnerability has been identified in Teamcenter Visualization V14.2 (All versions < V14.2.0.14), Teamcenter Visualiza…
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High 7.5
In ElementaryStreamQueue::dequeueAccessUnitMPEG4Video of ESQueue.cpp, there is a possible infinite loop leading to reso…
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High 7.7
Preallocated buffer overflows in XDR responses
A malicious server can crash the OpenAFS cache manager and other client utilities, and possibly execute arbitrary code.
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Medium 4.5
Out-of-bounds write in some Intel(R) SGX SDK software may allow an authenticated user to potentially enable escalation …
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High 8.4
Out-of-bounds write in some Intel(R) Graphics Drivers may allow an authenticated user to potentially enable escalation …
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Critical 9.8
In filterMask of SkEmbossMaskFilter.cpp, there is a possible out of bounds write due to an integer overflow. This could…
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High 7.8
In PMRWritePMPageList of pmr.c, there is a possible out of bounds write due to a logic error in the code. This could le…
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High 8.8
Tenda G3 v3.0 v15.11.0.20 was discovered to contain a stack overflow via the formSetPortMapping function.
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High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
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High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
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High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
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High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
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High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
-
High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
-
High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
-
High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
-
High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
-
High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
-
High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 10.1.0 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must…
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High 7.8
Illustrator | Out-of-bounds Write (CWE-787)
Illustrator versions 28.7.1 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a ma…
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High 7.8
Illustrator | Out-of-bounds Write (CWE-787)
Illustrator versions 28.7.1 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a ma…
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High 7.8
Illustrator | Out-of-bounds Write (CWE-787)
Illustrator versions 28.7.1 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a ma…