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
6,190 results · Feed
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Critical 9.8
Heap buffer overflow in libhdfs native library
There is a potential heap buffer overflow in Apache Hadoop libhdfs native code. Opening a file path provided by user without validation may result in a denial of service or arbitrary code execution. Users should upgrade to Apache Hadoop 2.10.2, 3.2.3, 3.3.2 o…
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High 7.8
Out-of-bounds Write in vim/vim
Out-of-bounds Write in GitHub repository vim/vim prior to 8.2.
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High 7.8
Horner Automation Cscape Csfont
The affected product is vulnerable to an out-of-bounds write via uninitialized pointer, which may allow an attacker to execute arbitrary code.
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High 7.8
Horner Automation Cscape Csfont
The affected product is vulnerable to an out-of-bounds write, which may allow an attacker to execute arbitrary code.
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Unscored —
A flaw out of bounds memory write in the Linux kernel UDF file system functionality was found in the way user triggers …
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Critical 9.1
Heap-based Buffer Overflow and Out-of-bounds Write in Sofia-SIP
Sofia-SIP is an open-source Session Initiation Protocol (SIP) User-Agent library. Prior to version 1.13.8, when parsing each line of a sdp message, `rest = record + 2` will access the memory behind `\0` and cause an out-of-bounds write. An attacker can send a…
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High 7.8
Out-of-bounds Write in vim/vim
Out-of-bounds Write in GitHub repository vim/vim prior to 8.2.
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High 7.8
A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 8.6, tvOS 15.5, …
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High 7.8
A memory corruption issue was addressed with improved input validation. This issue is fixed in Security Update 2022-004…
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High 7.8
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.4, wat…
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Medium 4.7
A memory corruption issue was addressed with improved validation. This issue is fixed in watchOS 8.6, tvOS 15.5, macOS …
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High 7.8
A memory corruption issue was addressed with improved memory handling. This issue is fixed in Security Update 2022-004 …
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High 7.8
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in tvOS 15.5, watchOS 8.6…
KEV Apr 4, 2022 -
High 7.8
Delta Electronics DIAScreen - Type Confusion, Out-of-bounds Write
Delta Electronics DIAScreen versions prior to 1.1.0 are vulnerable to an out-of-bounds write condition, which may result in a system crash or allow an attacker to remotely execute arbitrary code.
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Medium 5.5
Heap buffer overflow due to incorrect hash function in TensorFlow
TensorFlow is an open source platform for machine learning. In version 2.8.0, the `TensorKey` hash function used total estimated `AllocatedBytes()`, which (a) is an estimate per tensor, and (b) is a very poor hash function for constants (e.g. `int32_t`). It a…
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High 7.1
Segfault and Out-of-bounds Write write due to incomplete validation in TensorFlow
TensorFlow is an open source platform for machine learning. Prior to versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4, the implementation of `tf.raw_ops.EditDistance` has incomplete validation. Users can pass negative values to cause a segmentation fault based denial …
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High 7.8
Buffer overflow in wasm3
WASM3 v0.5.0 was discovered to contain a heap overflow via the component /wabt/bin/poc.wasm.
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High 7.3
Out-of-bounds Write in vim/vim
Out-of-bounds Write in GitHub repository vim/vim prior to 8.2.4977.
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High 7.8
Inkscape Out-of-bounds Write
Inkscape version 0.91 is vulnerable to an out-of-bounds write, which may allow an attacker to arbitrary execute code.
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High 8.5
NVIDIA GPU Display Driver for Windows contains a vulnerability in the DirectX11 user mode driver (nvwgf2um/x.dll), wher…
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High 8.5
NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer, where an unprivilege…
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Medium 6.8
NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the ECC layer, where an unprivileged regula…
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High 7.8
Adobe FrameMaker Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Adobe Framemaker versions 2029u8 (and earlier) and 2020u4 (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…
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High 7.8
Adobe FrameMaker PDF File Parsing Out-Of-Bounds Write Code Execution Vulnerability
Adobe Framemaker versions 2029u8 (and earlier) and 2020u4 (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…
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High 7.8
Adobe FrameMaker SVG File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Adobe Framemaker versions 2029u8 (and earlier) and 2020u4 (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…
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High 7.8
Adobe FrameMaker Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Adobe Framemaker versions 2029u8 (and earlier) and 2020u4 (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…
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High 7.8
Adobe FrameMaker Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Adobe Framemaker versions 2029u8 (and earlier) and 2020u4 (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…
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High 7.8
Adobe FrameMaker Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Adobe Framemaker versions 2029u8 (and earlier) and 2020u4 (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…
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High 7.8
Adobe FrameMaker Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Adobe Framemaker versions 2029u8 (and earlier) and 2020u4 (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…
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High 7.8
Adobe Character Animator SVG File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Adobe Character Animator versions 4.4.2 (and earlier) and 22.3 (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 intera…
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Medium 6.7
Out-of-bounds write in the BIOS authenticated code module for some Intel(R) Processors may allow a privileged user to p…
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High 7.8
Out-of-bounds write in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable…
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High 7.8CVE-2022-28236 EPSS 12%
Adobe Acrobat Reader DC Annotation Out-Of-Bounds Write Remote Code Execution Vulnerability
Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (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. Exploitatio…
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High 7.8
Adobe Acrobat Reader DC zoomType Out-Of-Bounds Write Remote Code Execution Vulnerability
Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (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. Exploitatio…
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High 7.8
Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (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. Exploitatio…
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High 7.8
Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (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. Exploitatio…
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High 7.8
Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (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. Exploitatio…
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High 7.8CVE-2022-27787 EPSS 10%
Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (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. Exploitatio…
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Unscored —
SAP Host Agent, SAP NetWeaver and ABAP Platform allow an attacker to leverage logical errors in memory management to ca…
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Unscored —
A vulnerability has been identified in Simcenter Femap (All versions < V2022.2). The affected application contains an o…