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
3,730 results · Feed
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High 8.8
D-Link DWR-M960 formDhcpv6s sub_468D64 stack-based overflow
A flaw has been found in D-Link DWR-M960 1.01.07. Affected by this issue is the function sub_468D64 of the file /boafrm/formDhcpv6s. Executing a manipulation of the argument submit-url can lead to stack-based buffer overflow. The attack can be executed remote…
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Critical 9.8
libtiff up to v4.7.1 was discovered to contain a stack overflow via the readSeparateStripsIntoBuffer function.
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High 8.8
D-Link DWR-M960 formNewSchedule sub_44E0F8 stack-based overflow
A vulnerability was detected in D-Link DWR-M960 1.01.07. Affected by this vulnerability is the function sub_44E0F8 of the file /boafrm/formNewSchedule. Performing a manipulation of the argument url results in stack-based buffer overflow. Remote exploitation o…
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High 8.8
D-Link DWR-M960 formWsc sub_457C5C stack-based overflow
A security vulnerability has been detected in D-Link DWR-M960 1.01.07. Affected is the function sub_457C5C of the file /boafrm/formWsc. Such manipulation of the argument save_apply leads to stack-based buffer overflow. The attack may be launched remotely. The…
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High 7.3
Zaher1307 tiny_web_server URL tiny.c out-of-bounds write
A vulnerability was determined in Zaher1307 tiny_web_server up to 8d77b1044a0ca3a5297d8726ac8aa2cf944d481b. This affects the function tiny_web_server/tiny.c of the file tiny_web_server/tiny.c of the component URL Handler. This manipulation causes out-of-bound…
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High 7.2
UTT HiPER 810G ConfigExceptMSN strcpy buffer overflow
A weakness has been identified in UTT HiPER 810G up to 1.7.7-171114. This issue affects the function strcpy of the file /goform/ConfigExceptMSN. Executing a manipulation of the argument remark can lead to buffer overflow. The attack can be executed remotely. …
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Medium 6.3
Tenda A18 Httpd Service UploadCfg webCgiGetUploadFile stack-based overflow
A vulnerability was identified in Tenda A18 15.13.07.13. The affected element is the function webCgiGetUploadFile of the file /cgi-bin/UploadCfg of the component Httpd Service. Such manipulation of the argument boundary leads to stack-based buffer overflow. T…
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High 8.8
D-Link DWR-M960 Wireless Access Control Endpoint formWlAc sub_453140 stack-based overflow
A vulnerability was determined in D-Link DWR-M960 1.01.07. Impacted is the function sub_453140 of the file /boafrm/formWlAc of the component Wireless Access Control Endpoint. This manipulation of the argument submit-url causes stack-based buffer overflow. Rem…
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High 8.8
D-Link DWR-M960 WLAN Encryption Configuration Endpoint formWlEncrypt sub_452CCC stack-based overflow
A vulnerability was found in D-Link DWR-M960 1.01.07. This issue affects the function sub_452CCC of the file /boafrm/formWlEncrypt of the component WLAN Encryption Configuration Endpoint. The manipulation of the argument submit-url results in stack-based buff…
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High 8.8
D-Link DWR-M960 Operation Mode Configuration Endpoint formOpMode sub_462590 stack-based overflow
A vulnerability has been found in D-Link DWR-M960 1.01.07. This vulnerability affects the function sub_462590 of the file /boafrm/formOpMode of the component Operation Mode Configuration Endpoint. The manipulation of the argument submit-url leads to stack-bas…
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High 8.8
D-Link DWR-M960 LTE Configuration Endpoint formLteSetup sub_4237AC stack-based overflow
A flaw has been found in D-Link DWR-M960 1.01.07. This affects the function sub_4237AC of the file /boafrm/formLteSetup of the component LTE Configuration Endpoint. Executing a manipulation of the argument submit-url can lead to stack-based buffer overflow. T…
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High 8.8
D-Link DWR-M960 Bridge VLAN Configuration Endpoint formBridgeVlan sub_42B5A0 stack-based overflow
A vulnerability was detected in D-Link DWR-M960 1.01.07. Affected by this issue is the function sub_42B5A0 of the file /boafrm/formBridgeVlan of the component Bridge VLAN Configuration Endpoint. Performing a manipulation of the argument submit-url results in …
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Low 2.5
libvips source.c vips_source_read_to_memory heap-based overflow
A vulnerability was determined in libvips up to 8.19.0. The affected element is the function vips_source_read_to_memory of the file libvips/iofuncs/source.c. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local…
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High 8.8
Tenda FH451 GstDhcpSetSer buffer overflow
A vulnerability has been found in Tenda FH451 up to 1.0.0.9. This issue affects some unknown processing of the file /goform/GstDhcpSetSer. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclose…
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High 8.8
Tenda HG9 formPing6 stack-based overflow
A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/formPing6. Executing a manipulation of the argument pingAddr can lead to stack-based buffer overflow. The attack may be performed from remote. The explo…
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High 8.8
Tenda HG9 Diagnostic Ping Endpoint formPing stack-based overflow
A vulnerability was detected in Tenda HG9 300001138. This affects an unknown part of the file /boaform/formPing of the component Diagnostic Ping Endpoint. Performing a manipulation of the argument pingAddr results in stack-based buffer overflow. The attack is…
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High 8.8
Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow
A security vulnerability has been detected in Tenda HG9 300001138. Affected by this issue is some unknown functionality of the file /boaform/formLoopBack of the component Loopback Detection Configuration Endpoint. Such manipulation of the argument Ethtype lea…
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High 8.8
Tenda HG9 GPON Configuration Endpoint formgponConf stack-based overflow
A weakness has been identified in Tenda HG9 300001138. Affected by this vulnerability is an unknown functionality of the file /boaform/formgponConf of the component GPON Configuration Endpoint. This manipulation of the argument fmgpon_loid/fmgpon_loid_passwor…
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High 8.8
Tenda HG9 Samba Configuration Endpoint formSamba stack-based overflow
A security flaw has been discovered in Tenda HG9 300001138. Affected is an unknown function of the file /boaform/formSamba of the component Samba Configuration Endpoint. The manipulation of the argument sambaCap results in stack-based buffer overflow. The att…
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High 8.8
Tenda HG9 Wireless Configuration Endpoint formWlanSetup stack-based overflow
A vulnerability was identified in Tenda HG9 300001138. This impacts an unknown function of the file /boaform/formWlanSetup of the component Wireless Configuration Endpoint. The manipulation of the argument ssid leads to stack-based buffer overflow. The attack…
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High 8.8
UTT HiPER 810G ConfigExceptAli strcpy buffer overflow
A vulnerability was determined in UTT HiPER 810G 1.7.7-171114. This affects the function strcpy of the file /goform/ConfigExceptAli. Executing a manipulation can lead to buffer overflow. The attack can be launched remotely. The exploit has been publicly discl…
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Low 3.3
CCExtractor mp4.c processmp4 use after free
A vulnerability was detected in CCExtractor up to 0.96.5. Affected is the function processmp4 in the library src/lib_ccx/mp4.c. Performing a manipulation results in use after free. The attack is only possible with local access. The exploit is now public and m…
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High 8.8
Tenda A21 SetOnlineDevName set_device_name stack-based overflow
A weakness has been identified in Tenda A21 1.0.0.0. This affects the function set_device_name of the file /goform/SetOnlineDevName. This manipulation of the argument devName causes stack-based buffer overflow. It is possible to initiate the attack remotely. …
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High 8.8
D-Link DWR-M960 formIpv6Setup sub_469104 stack-based overflow
A security flaw has been discovered in D-Link DWR-M960 1.01.07. The impacted element is the function sub_469104 of the file /boafrm/formIpv6Setup. The manipulation of the argument submit-url results in stack-based buffer overflow. The attack may be performed …
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High 8.8
D-Link DWR-M960 WAN Interface Setting formWanConfigSetup sub_41914C stack-based overflow
A vulnerability was identified in D-Link DWR-M960 1.01.07. The affected element is the function sub_41914C of the file /boafrm/formWanConfigSetup of the component WAN Interface Setting Handler. The manipulation of the argument submit-url leads to stack-based …
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High 8.8
D-Link DWR-M960 formIpQoS sub_427D74 stack-based overflow
A vulnerability was determined in D-Link DWR-M960 1.01.07. Impacted is the function sub_427D74 of the file /boafrm/formIpQoS. Executing a manipulation of the argument submit-url can lead to stack-based buffer overflow. The attack can be executed remotely. The…
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High 8.8
D-Link DWR-M960 formDosCfg sub_46385C stack-based overflow
A vulnerability was found in D-Link DWR-M960 1.01.07. This issue affects the function sub_46385C of the file /boafrm/formDosCfg. Performing a manipulation of the argument submit-url results in stack-based buffer overflow. Remote exploitation of the attack is …
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High 8.8
D-Link DWR-M960 Advanced Firewall Configuration Endpoint formFirewallAdv sub_425FF8 stack-based overflow
A vulnerability has been found in D-Link DWR-M960 1.01.07. This vulnerability affects the function sub_425FF8 of the file /boafrm/formFirewallAdv of the component Advanced Firewall Configuration Endpoint. Such manipulation of the argument submit-url leads to …
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High 8.8
Tenda A18 Httpd Service WifiExtraSet strcpy stack-based overflow
A vulnerability has been found in Tenda A18 15.13.07.13. This affects the function strcpy of the file /goform/WifiExtraSet of the component Httpd Service. The manipulation of the argument wpapsk_crypto5g leads to stack-based buffer overflow. It is possible to…
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High 8.8
Tenda A18 setBlackRule parse_macfilter_rule stack-based overflow
A vulnerability was determined in Tenda A18 15.13.07.13. This affects the function parse_macfilter_rule of the file /goform/setBlackRule. This manipulation of the argument deviceList causes stack-based buffer overflow. The attack may be initiated remotely. Th…
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High 8.8
Tenda A21 fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow
A flaw has been found in Tenda A21 1.0.0.0. Impacted is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. Executing a manipulation of the argument ssid can lead to stack-based buffer overflow. It is possible to launch the atta…
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High 8.8
Tenda A21 openSchedWifi setSchedWifi stack-based overflow
A vulnerability was detected in Tenda A21 1.0.0.0. This issue affects the function setSchedWifi of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. It is possible to …
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High 8.8
Tenda A21 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based overflow
A security vulnerability has been detected in Tenda A21 1.0.0.0. This vulnerability affects the function set_device_name of the file /goform/setBlackRule of the component MAC Filtering Configuration Endpoint. Such manipulation of the argument devName/mac lead…
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High 8.8
Tenda A21 SetIpMacBind fromSetIpMacBind stack-based overflow
A weakness has been identified in Tenda A21 1.0.0.0. This affects the function fromSetIpMacBind of the file /goform/SetIpMacBind. This manipulation of the argument list causes stack-based buffer overflow. The attack is possible to be carried out remotely. The…
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High 8.8
Tenda A21 formSetQosBand set_qosMib_list stack-based overflow
A security flaw has been discovered in Tenda A21 1.0.0.0. Affected by this issue is the function set_qosMib_list of the file /goform/formSetQosBand. The manipulation of the argument list results in stack-based buffer overflow. The attack can be executed remot…
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Low 3.3
janet-lang janet handleattr specials.c janetc_varset out-of-bounds
A vulnerability was identified in janet-lang janet up to 1.40.1. Affected by this vulnerability is the function janetc_varset of the file src/core/specials.c of the component handleattr Handler. The manipulation leads to out-of-bounds read. The attack can onl…
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Low 3.3
wren-lang wren Source File wren_compiler.c peekChar out-of-bounds
A vulnerability was identified in wren-lang wren up to 0.4.0. This affects the function peekChar of the file src/vm/wren_compiler.c of the component Source File Parser. Such manipulation leads to out-of-bounds read. The attack needs to be performed locally. T…
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High 8.8
D-Link DWR-M960 Port Forwarding Configuration Endpoint formPortFw sub_423E00 stack-based overflow
A vulnerability was determined in D-Link DWR-M960 1.01.07. Affected by this issue is the function sub_423E00 of the file /boafrm/formPortFw of the component Port Forwarding Configuration Endpoint. This manipulation of the argument submit-url causes stack-base…
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High 8.8
D-Link DWR-M960 Filter Configuration Endpoint formFilter sub_424AFC stack-based overflow
A vulnerability was found in D-Link DWR-M960 1.01.07. Affected by this vulnerability is the function sub_424AFC of the file /boafrm/formFilter of the component Filter Configuration Endpoint. The manipulation of the argument submit-url results in stack-based b…
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High 8.8
D-Link DWR-M960 DDNS Settings formDdns sub_4648F0 stack-based overflow
A vulnerability has been found in D-Link DWR-M960 1.01.07. Affected is the function sub_4648F0 of the file /boafrm/formDdns of the component DDNS Settings Handler. The manipulation of the argument submit-url leads to stack-based buffer overflow. The attack ma…