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
Tenda AC8 Embedded Httpd Service fast_setting_wifi_set buffer overflow
A flaw has been found in Tenda AC8 16.03.33.05. Affected by this vulnerability is an unknown functionality of the file /goform/fast_setting_wifi_set of the component Embedded Httpd Service. This manipulation of the argument timeZone causes buffer overflow. Re…
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High 8.8
Tenda AC8 httpd WifiGuestSet fromSetWifiGusetBasic buffer overflow
A vulnerability was detected in Tenda AC8 16.03.33.05. Affected is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet of the component httpd. The manipulation of the argument shareSpeed results in buffer overflow. The attack may be launched r…
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High 7.2
Tenda AC9 formGetRebootTimer stack-based overflow
A security vulnerability has been detected in Tenda AC9 15.03.06.42_multi. Affected by this vulnerability is the function formGetRebootTimer. Such manipulation of the argument sys.schedulereboot.start_time/sys.schedulereboot.end_time leads to stack-based buff…
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High 7.2
Tenda AC9 formGetDdosDefenceList stack-based overflow
A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been …
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High 8.8
Tenda RX3 formSetQosBand set_qosMib_list stack-based overflow
A vulnerability was found in Tenda RX3 16.03.13.11. The affected element is the function set_qosMib_list of the file /goform/formSetQosBand. Performing a manipulation of the argument list results in stack-based buffer overflow. It is possible to initiate the …
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High 8.8
Tenda RX3 SetIpMacBind fromSetIpMacBind stack-based overflow
A vulnerability has been found in Tenda RX3 16.03.13.11. Impacted is the function fromSetIpMacBind of the file /goform/SetIpMacBind. Such manipulation of the argument list leads to stack-based buffer overflow. The attack may be performed from remote. The expl…
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High 8.8
Tenda RX3 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based overflow
A flaw has been found in Tenda RX3 16.03.13.11. This issue affects the function set_device_name of the file /goform/setBlackRule of the component MAC Filtering Configuration Endpoint. This manipulation of the argument devName/mac causes stack-based buffer ove…
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High 8.8
Tenda RX3 openSchedWifi stack-based overflow
A security flaw has been discovered in Tenda RX3 16.03.13.11. Affected by this vulnerability is an unknown functionality of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer ove…
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High 8.8
Tenda RX3 fast_setting_wifi_set stack-based overflow
A vulnerability was identified in Tenda RX3 16.03.13.11. Affected is an unknown function of the file /goform/fast_setting_wifi_set. Such manipulation of the argument ssid_5g leads to stack-based buffer overflow. The attack can be launched remotely. The exploi…
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High 8.8
Tenda TX9 setMacFilterCfg sub_4223E0 buffer overflow
A vulnerability was identified in Tenda TX9 up to 22.03.02.10_multi. Affected by this issue is the function sub_4223E0 of the file /goform/setMacFilterCfg. Such manipulation of the argument deviceList leads to buffer overflow. The attack may be launched remot…
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High 8.8
Tenda TX9 fast_setting_wifi_set sub_432580 buffer overflow
A vulnerability was determined in Tenda TX9 up to 22.03.02.10_multi. Affected by this vulnerability is the function sub_432580 of the file /goform/fast_setting_wifi_set. This manipulation of the argument ssid causes buffer overflow. The attack may be initiate…
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High 8.8
Tenda TX9 SetStaticRouteCfg sub_42D03C buffer overflow
A vulnerability was found in Tenda TX9 up to 22.03.02.10_multi. Affected is the function sub_42D03C of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has b…
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High 8.8
Tenda TX3 SetIpMacBind buffer overflow
A vulnerability has been found in Tenda TX3 up to 16.03.13.11_multi. This impacts an unknown function of the file /goform/SetIpMacBind. The manipulation of the argument list leads to buffer overflow. The attack can be initiated remotely. The exploit has been …
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High 8.8
UTT HiPER 810G Management formFireWall strcpy buffer overflow
A vulnerability was detected in UTT HiPER 810G up to 1.7.7-171114. Affected by this vulnerability is the function strcpy of the file /goform/formFireWall of the component Management Interface. The manipulation of the argument GroupName results in buffer overf…
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High 8.8
UTT 进取 520W formP2PLimitConfig strcpy buffer overflow
A vulnerability was found in UTT 进取 520W 1.7.7-180627. The impacted element is the function strcpy of the file /goform/formP2PLimitConfig. Performing a manipulation of the argument except results in buffer overflow. The attack is possible to be carried out re…
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High 8.8
UTT 进取 520W formPolicyRouteConf strcpy buffer overflow
A vulnerability has been found in UTT 进取 520W 1.7.7-180627. The affected element is the function strcpy of the file /goform/formPolicyRouteConf. Such manipulation of the argument GroupName leads to buffer overflow. The attack can be executed remotely. The exp…
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Low 3.3
ggml-org llama.cpp GBNF Grammar llama-grammar.cpp llama_grammar_advance_stack stack-based overflow
A flaw has been found in ggml-org llama.cpp up to 55abc39. Impacted is the function llama_grammar_advance_stack of the file llama.cpp/src/llama-grammar.cpp of the component GBNF Grammar Handler. This manipulation causes stack-based buffer overflow. The attack…
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High 8.8
UTT 进取 520W formSyslogConf strcpy buffer overflow
A vulnerability was detected in UTT 进取 520W 1.7.7-180627. This issue affects the function strcpy of the file /goform/formSyslogConf. The manipulation of the argument ServerIp results in buffer overflow. The attack may be launched remotely. The exploit is now …
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High 8.8
UTT 进取 520W formTimeGroupConfig strcpy buffer overflow
A security vulnerability has been detected in UTT 进取 520W 1.7.7-180627. This vulnerability affects the function strcpy of the file /goform/formTimeGroupConfig. The manipulation of the argument year1 leads to buffer overflow. The attack may be initiated remote…
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High 8.8
UTT 进取 520W formIpGroupConfig strcpy buffer overflow
A weakness has been identified in UTT 进取 520W 1.7.7-180627. This affects the function strcpy of the file /goform/formIpGroupConfig. Executing a manipulation of the argument groupName can lead to buffer overflow. The attack can be launched remotely. The exploi…
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High 7.8
iccDEV memcpy-param-overlap in CIccTagMultiProcessElement::Apply()
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to 2.3.1.4, SrcPixel and DestPixel stack buffers overlap in CIccTagMultiProcessElement::Apply() int IccTagMPE.cp…
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Critical 9.8
IP-COM W30AP POST Request wx3auth R7WebsSecurityHandler stack-based overflow
A vulnerability was detected in IP-COM W30AP up to 1.0.0.11(1340). Affected by this issue is the function R7WebsSecurityHandler of the file /goform/wx3auth of the component POST Request Handler. The manipulation of the argument data results in stack-based buf…
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Medium 5.3
happyfish100 libfastcommon base64.c base64_decode stack-based overflow
A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64_decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to ap…
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Low 3.3
micropython runtime.c mp_import_all memory corruption
A flaw has been found in micropython up to 1.27.0. This vulnerability affects the function mp_import_all of the file py/runtime.c. This manipulation causes memory corruption. The attack needs to be launched locally. The exploit has been published and may be u…
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Medium 5.3
mruby JMPNOT-to-JMPIF Optimization vm.c mrb_vm_exec use after free
A flaw has been found in mruby up to 3.4.0. This affects the function mrb_vm_exec of the file src/vm.c of the component JMPNOT-to-JMPIF Optimization. Executing a manipulation can lead to use after free. The attack needs to be launched locally. The exploit has…
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Critical 9.3
In vpu_mmap of vpu_ioctl, there is a possible arbitrary address mmap due to a missing bounds check. This could lead to …
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High 7.8
iccDEV vulnerable to OOB in CIccXform3DLut::Apply()
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.3, there is a vulnerability IccCmm.cpp:5793 when reading through index during ICC profile proce…
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High 7.8
iccDEV vulnerable to Stack-based Buffer Overflow in CIccTagFloatNum::GetValues()
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.3, there is a stack-buffer-overflow vulnerability in CIccTagFloatNum<>::GetValues(). This is tr…
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High 7.8
iccDEV vulnerable to Heap Buffer Overflow in CIccFileIO::Read8()
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.3, there is a heap buffer overflow vulnerability in CIccFileIO::Read8() when processing malform…
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High 7.8
iccDEV vulnerable to Heap Buffer Overflow in CIccIO::WriteUInt16Float()
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.3, there is a heap buffer overflow (read) vulnerability in CIccIO::WriteUInt16Float() when conv…
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High 7.3
Open5GS VoLTE Cx-Test hss-cx-path.c hss_ogs_diam_cx_mar_cb stack-based overflow
A security flaw has been discovered in Open5GS up to 2.7.6. Affected by this vulnerability is the function hss_ogs_diam_cx_mar_cb of the file src/hss/hss-cx-path.c of the component VoLTE Cx-Test. The manipulation of the argument OGS_KEY_LEN results in stack-b…
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High 8.8
Totolink A3600R app.so setAppEasyWizardConfig buffer overflow
A security flaw has been discovered in Totolink A3600R 5.9c.4959. This issue affects the function setAppEasyWizardConfig in the library /lib/cste_modules/app.so. Performing a manipulation of the argument apcliSsid results in buffer overflow. It is possible to…
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High 8.8
Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow
A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The e…
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Critical 9.3
An improper pointer arithmetic in root-project/root at builtins/zlib/inffast.c
Vulnerability in root-project root (builtins/zlib modules). This vulnerability is associated with program files inffast.C. This issue affects root.
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Critical 9.3
An Uninitialized stack variable vulnerability in GaijinEntertainment/DagorEngine
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in GaijinEntertainment DagorEngine (prog/3rdPartyLibs/miniupnpc modules). This vulnerability is associated with program files upnpreplyparse.C. This issue affects DagorEngin…
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Critical 9.2
Chunk Unloading Security Vulnerability in CardboardPowered/cardboard
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in CardboardPowered cardboard (src/main/java/org/cardboardpowered/impl/world modules). This vulnerability is associated with program files WorldImpl.Java. This issue affects…
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High 8.7
A heap-based buffer over-read or buffer overflow in tildearrow/furnace
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in anyrtcIO-Community anyRTC-RTMP-OpenSource (third_party/faad2-2.7/libfaad modules). This vulnerability is associated with program files bits.C, syntax.C. This issue affect…
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Medium 5.6
pymumu SmartDNS SVBC Record dns.c _dns_decode_SVCB_HTTPS stack-based overflow
A security flaw has been discovered in pymumu SmartDNS up to 47.1. This vulnerability affects the function _dns_decode_rr_head/_dns_decode_SVCB_HTTPS of the file src/dns.c of the component SVBC Record Parser. The manipulation results in stack-based buffer ove…
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High 8.8
Tenda AC23 WifiExtraSet buffer overflow
A flaw has been found in Tenda AC23 16.03.07.52. This impacts an unknown function of the file /goform/WifiExtraSet. This manipulation of the argument wpapsk_crypto causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been pub…
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Medium 5.3
GPAC SRT Subtitle Import text_to_bifs.c gf_text_import_srt_bifs out-of-bounds write
A security vulnerability has been detected in GPAC up to 2.4.0. This affects the function gf_text_import_srt_bifs of the file src/scene_manager/text_to_bifs.c of the component SRT Subtitle Import. Such manipulation leads to out-of-bounds write. The attack nee…