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
6,166 results · Feed
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High 8.8
Multiple improper array index validation vulnerabilities exist in the readMSH functionality of libigl v2.5.0. A special…
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Medium 5.3
Eclipse Open J9 With -Xgc:concurrentScavenge on IBM Z, could write/read outside of a buffer
In Eclipse OpenJ9 release versions prior to 0.44.0 and after 0.13.0, when running with JVM option -Xgc:concurrentScavenge, the sequence generated for System.arrayCopy on the IBM Z platform with hardware and software support for guarded storage [1], could allo…
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High 7.8
drm/msm/a6xx: Allocate enough space for GMU registers
In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Allocate enough space for GMU registers In commit 142639a52a01 ("drm/msm/a6xx: fix crashstate capture for A650") we changed a6xx_get_gmu_registers() to read 3 sets of registers.…
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High 7.8
ZDI-CAN-22887: Adobe Acrobat Reader DC JPEG2000 File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Acrobat Reader versions 20.005.30574, 24.002.20736 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 …
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High 7.3
mlxsw: thermal: Fix out-of-bounds memory accesses
In the Linux kernel, the following vulnerability has been resolved: mlxsw: thermal: Fix out-of-bounds memory accesses Currently, mlxsw allows cooling states to be set above the maximum cooling state supported by the driver: # cat /sys/class/thermal/thermal_zo…
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High 8.1
The storage controllers on VMware ESXi, Workstation, and Fusion have out-of-bounds read/write vulnerability. A maliciou…
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High 8.4
wifi: ath12k: fix possible out-of-bound write in ath12k_wmi_ext_hal_reg_caps()
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix possible out-of-bound write in ath12k_wmi_ext_hal_reg_caps() reg_cap.phy_id is extracted from WMI event and could be an unexpected value in case some errors happen. As a res…
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Critical 9.8CVE-2023-52755 EPSS 28%
ksmbd: fix slab out of bounds write in smb_inherit_dacl()
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab out of bounds write in smb_inherit_dacl() slab out-of-bounds write is caused by that offsets is bigger than pntsd allocation size. This patch add the check to validate 3 offse…
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High 7.1
drm/sched: Avoid data corruptions
In the Linux kernel, the following vulnerability has been resolved: drm/sched: Avoid data corruptions Wait for all dependencies of a job to complete before killing it to avoid data corruptions.
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High 7.1
xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING
In the Linux kernel, the following vulnerability has been resolved: xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING syzbot reported an illegal copy in xsk_setsockopt() [1] Make sure to validate setsockopt() @optlen parameter. [1] BUG: KASAN: slab…
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High 7.1
mm: cachestat: fix two shmem bugs
In the Linux kernel, the following vulnerability has been resolved: mm: cachestat: fix two shmem bugs When cachestat on shmem races with swapping and invalidation, there are two possible bugs: 1) A swapin error can have resulted in a poisoned swap entry in th…
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Medium 5.3
ALSA: usb-audio: Stop parsing channels bits when all channels are found.
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Stop parsing channels bits when all channels are found. If a usb audio device sets more bits than the amount of channels it could write outside of the map array.
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Low 3.9
Out-of-bounds write in Intel(R) Media SDK all versions and some Intel(R) oneVPL software before version 23.3.5 may allo…
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Medium 5.7
Out of bounds write in firmware for some Intel(R) FPGA products before version 2.9.0 may allow escalation of privilege …
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High 7.8
Adobe FrameMaker TIF File parsing Out Of Bound Write
Adobe Framemaker versions 2020.5, 2022.3 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 interaction in that a victim m…
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High 7.8
Adobe FrameMaker GIF File parsing Out Of Bound Write
Adobe Framemaker versions 2020.5, 2022.3 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 interaction in that a victim m…
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High 7.8
Adobe FrameMaker WEBP File Parsing Out Of Bound Write
Adobe Framemaker versions 2020.5, 2022.3 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 interaction in that a victim m…
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High 7.8
When Animate parses FLA files, there is an out-of-bounds write vulnerability at animate+0x123df28
Animate versions 24.0.2, 23.0.5 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 …
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High 7.8
When Adobe Animate parses FLA files, there is a heap out-of-bounds write vulnerability at Animate.exe+0x125D391
Animate versions 24.0.2, 23.0.5 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 …
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High 7.8
Adobe Animate 2024 Out of Bound Write Remote Code Execution Vulnerability
Animate versions 24.0.2, 23.0.5 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 …
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High 7.8
Adobe Substance 3D Painter BMP File Parsing Out Of Bounds Write Vulnerability
Substance3D - Painter versions 9.1.2 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
Adobe Substance 3D Painter ABC File Parsing An Out-Of-Bounds Write Vulnerability
Substance3D - Painter versions 9.1.2 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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Low 2.1
Out-of-bounds array write in Xpdf 4.05 due to missing object type check
Out-of-bounds array write in Xpdf 4.05 and earlier, due to missing object type check in AcroForm field reference.
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High 7.8
ZDI-CAN-23327: Adobe Acrobat Reader DC PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Acrobat Reader versions 20.005.30574, 24.002.20736 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 …
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High 8.1
GHSL-2020-254: Arbitrary file read and/or write in dotmesh
Dotmesh is a git-like command-line interface for capturing, organizing and sharing application states. In versions 0.8.1 and prior, the unsafe handling of symbolic links in an unpacking routine may enable attackers to read and/or write to arbitrary locations …
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High 7.6
An attacker who successfully exploited these vulnerabilities could cause the robot to stop, make the robot controller i…
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High 7.1
VMware Workstation and Fusion contain a heap buffer-overflow vulnerability in the Shader functionality. A malicious act…
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High 7.8
A vulnerability has been identified in JT2Go (All versions < V2312.0001), Teamcenter Visualization V14.1 (All versions …
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High 7.8
A vulnerability has been identified in Tecnomatix Plant Simulation V2302 (All versions < V2302.0011). The affected appl…
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High 7.8
A vulnerability has been identified in Parasolid V35.1 (All versions < V35.1.256), Parasolid V36.0 (All versions < V36.…
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Medium 4.9
Memory Corruption vulnerability in SAP Replication Server
SAP Replication Server allows an attacker to use gateway for executing some commands to RSSD. This could result in crashing the Replication Server due to memory corruption with high impact on Availability of the system.
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High 8.3
Out of bounds write in V8 in Google Chrome prior to 124.0.6367.207 allowed a remote attacker to perform an out of bound…
KEV May 16, 2024 -
High 8.6
TinyWeb 1.94 and below allows unauthenticated remote attackers to cause a denial of service (Buffer Overflow) when send…
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Critical 9.8
HDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5Z__nbit_decompress_one_byte in H5Znbit.c, caused…
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Medium 5.3
A Segmentation Fault issue discovered in Samsung Open Source Escargot JavaScript engine allows remote attackers to caus…
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Medium 5.3
Possible stack overflow due to a string encoding processing error
Improper Input Validation vulnerability in Samsung Open Source escargot JavaScript engine allows Overflow Buffers. However, it occurs in the test code and does not include in the release. This issue affects escargot: 4.0.0.
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High 7.8
Bentley View SKP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Bentley View SKP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View. User interaction is required to exploit this vulnerability i…
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High 8.8
NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability
NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 routers. Authentication is not required to exploit this vu…
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Medium 6.5CVE-2024-23709 Public exploit
In multiple locations, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote…
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High 7.8
CODESYS: Out-of-bounds write through corrupted project files
An unauthenticated local attacker may trick a user to open corrupted project files to execute arbitrary code or crash the system due to an out-of-bounds write vulnerability.