Weakness (CWE)
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
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-119
3,733 results · Feed
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Medium 5.6
Axiomatic Bento4 Ap4DataBuffer.h GetData heap-based overflow
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Medium 6.5
Tenda A18 HTTP POST Request SetCmdlineRun stack-based overflow
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Medium 5.0
GNU Binutils objdump.c disassemble_bytes stack-based overflow
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Medium 6.3
Axiomatic Bento4 mp42aac ReadPartial heap-based overflow
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Medium 6.3
Axiomatic Bento4 mp42aac ReadBits heap-based overflow
A vulnerability classified as critical has been found in Axiomatic Bento4 up to 1.6.0. This affects the function AP4_BitReader::ReadBits of the component mp42aac. The manipulation leads to heap-based buffer overflow. It is possible to initiate the attack remo…
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Low 3.3
Microword eScan Antivirus Folder Watch List rtscanner removeExtraSlashes stack-based overflow
A vulnerability was found in Microword eScan Antivirus 7.0.32 on Linux. It has been rated as problematic. Affected by this issue is the function removeExtraSlashes of the file /opt/MicroWorld/sbin/rtscanner of the component Folder Watch List Handler. The mani…
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High 8.8
Tenda AC15 SetDevNetName formSetDevNetName stack-based overflow
A vulnerability classified as critical has been found in Tenda AC15 15.13.07.13. This affects the function formSetDevNetName of the file /goform/SetDevNetName. The manipulation of the argument mac leads to stack-based buffer overflow. It is possible to initia…
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Medium 5.3
code-projects Train Ticket Reservation System Login Form stack-based overflow
A vulnerability, which was classified as critical, was found in code-projects Train Ticket Reservation System 1.0. This affects an unknown part of the component Login Form. The manipulation of the argument username leads to stack-based buffer overflow. Attack…
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Medium 6.5
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists that could allow …
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Medium 4.6
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists that could allow …
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High 8.4
An improper array index validation vulnerability exists in the determineMinMax functionality of OFFIS DCMTK 3.6.8. A sp…
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High 8.4
An improper array index validation vulnerability exists in the nowindow functionality of OFFIS DCMTK 3.6.8. A specially…
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High 7.8
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High 8.8
Tenda AC6 GetParentControlInfo stack-based overflow
A vulnerability classified as critical has been found in Tenda AC6 15.03.05.16. Affected is the function GetParentControlInfo of the file /goform/GetParentControlInfo. The manipulation of the argument src/mac leads to stack-based buffer overflow. It is possib…
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Medium 6.0
Vulnerability of improper memory address protection in the HUKS module Impact: Successful exploitation of this vulnerab…
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High 7.8
Foxit PDF Reader AcroForm Memory Corruption Remote Code Execution Vulnerability
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High 7.3
Netgear R6900P/R7000P HTTP Header sub_16C4C buffer overflow
A vulnerability has been found in Netgear R6900P and R7000P 1.3.3.154 and classified as critical. Affected by this vulnerability is the function sub_16C4C of the component HTTP Header Handler. The manipulation of the argument Host leads to buffer overflow. Th…
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Medium 5.3
SourceCodester Phone Contact Manager System User Menu MenuDisplayStart buffer overflow
A vulnerability, which was classified as critical, was found in SourceCodester Phone Contact Manager System 1.0. Affected is the function UserInterface::MenuDisplayStart of the component User Menu. The manipulation leads to buffer overflow. It is possible to …
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Medium 4.3
TOTOLINK EX1800T cstecgi.cgi sub_40662C stack-based overflow
A vulnerability classified as problematic was found in TOTOLINK EX1800T 9.1.0cu.2112_B20220316. This vulnerability affects the function sub_40662C of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ssid leads to stack-based buffer overflow. Th…
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Medium 6.3CVE-2024-12344 Public exploit
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A vulnerability, which was classified as critical, was found in TP-Link VN020 F3v(T) TT_V6.2.1021. This affects an unknown part of the component FTP USER Command Handler. The manipulation leads to memory corruption. It is possible to initiate the attack remot…
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Medium 6.5
TP-Link VN020 F3v(T) SOAP Request WANIPConnection buffer overflow
A vulnerability classified as critical has been found in TP-Link VN020 F3v(T) TT_V6.2.1021. Affected is an unknown function of the file /control/WANIPConnection of the component SOAP Request Handler. The manipulation of the argument NewConnectionType leads to…
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Medium 5.3
code-projects Hotel Management System Available Room hotelnew.c stack-based overflow
A vulnerability was found in code-projects Hotel Management System 1.0 and classified as problematic. This issue affects some unknown processing of the file hotelnew.c of the component Available Room Handler. The manipulation of the argument admin_entry leads…
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Medium 5.3
code-projects Hotel Management System Administrator Login Password stack-based overflow
A vulnerability has been found in code-projects Hotel Management System 1.0 and classified as problematic. This vulnerability affects unknown code of the component Administrator Login Password Handler. The manipulation of the argument Str2 leads to stack-base…
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Medium 6.5
Netgear R6900 HTTP Header upgrade_check.cgi buffer overflow
A vulnerability was found in Netgear R6900 1.0.1.26_1.0.20. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file upgrade_check.cgi of the component HTTP Header Handler. The manipulation of the argument Conte…
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High 7.8
Improper Restriction of Operations within the Bounds of a Memory Buffer in WLAN Windows Host
Memory corruption while invoking IOCTL calls from user space to read WLAN target diagnostic information.
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High 7.8
Improper Restriction of Operations within the Bounds of a Memory Buffer in WLAN Windows Host
Memory corruption while invoking IOCTL calls from user space to set generic private command inside WLAN driver.
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High 8.8
D-Link DIR-605L formSetPortTr buffer overflow
A vulnerability was found in D-Link DIR-605L 2.13B01. It has been declared as critical. This vulnerability affects the function formSetPortTr of the file /goform/formSetPortTr. The manipulation of the argument curTime leads to buffer overflow. The attack can …
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High 8.8
D-Link DIR-605L formResetStatistic buffer overflow
A vulnerability was found in D-Link DIR-605L 2.13B01. It has been classified as critical. This affects the function formResetStatistic of the file /goform/formResetStatistic. The manipulation of the argument curTime leads to buffer overflow. It is possible to…
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High 8.8
Tenda AC8 SetStaticRouteCfg route_static_check stack-based overflow
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High 7.8
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High 7.8
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High 7.8
Tungsten Automation Power PDF PDF File Parsing Memory Corruption Remote Code Execution Vulnerability
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High 7.8
Trimble SketchUp Viewer SKP File Parsing Memory Corruption Remote Code Execution Vulnerability
Trimble SketchUp Viewer SKP File Parsing Memory Corruption Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Trimble SketchUp Viewer. User interaction is required to exploit …
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High 7.8
Trimble SketchUp Viewer SKP File Parsing Memory Corruption Remote Code Execution Vulnerability
Trimble SketchUp Viewer SKP File Parsing Memory Corruption Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Trimble SketchUp Viewer. User interaction is required to exploit …
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High 7.8
IrfanView RLE File Parsing Memory Corruption Remote Code Execution Vulnerability
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High 7.8
IrfanView DXF File Parsing Memory Corruption Remote Code Execution Vulnerability
IrfanView DXF File Parsing Memory Corruption 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 t…
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High 7.8
IrfanView DXF File Parsing Memory Corruption Remote Code Execution Vulnerability
IrfanView DXF File Parsing Memory Corruption 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 t…
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High 7.8
IrfanView DXF File Parsing Memory Corruption Remote Code Execution Vulnerability
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High 7.8
IrfanView DXF File Parsing Memory Corruption Remote Code Execution Vulnerability
IrfanView DXF File Parsing Memory Corruption 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 t…
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High 7.8
IrfanView DXF File Parsing Memory Corruption Remote Code Execution Vulnerability
IrfanView DXF File Parsing Memory Corruption 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 t…