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
3,721 results · Feed
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Medium 5.3
libvips nip2 vips7compat.c im_minpos_vec heap-based overflow
A security vulnerability has been detected in libvips up to 8.18.2. The affected element is the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. Such manipulation of the argument n leads to heap-based buffer o…
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High 8.8
Tenda F456 webtypelibrary formwebtypelibrary stack-based overflow
A vulnerability was determined in Tenda F456 1.0.0.5. The affected element is the function formwebtypelibrary of the file /goform/webtypelibrary. This manipulation of the argument menufacturer/Go causes stack-based buffer overflow. The attack can be initiated…
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High 8.8
Tenda F456 qossetting fromqossetting stack-based overflow
A vulnerability was found in Tenda F456 1.0.0.5. Impacted is the function fromqossetting of the file /goform/qossetting. The manipulation of the argument page results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit ha…
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High 8.8
Tenda F456 NatStaticSetting fromNatStaticSetting stack-based overflow
A vulnerability has been found in Tenda F456 1.0.0.5. This issue affects the function fromNatStaticSetting of the file /goform/NatStaticSetting. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to initiate the attack …
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High 8.8
Tenda F456 AdvSetWrlsafeset formWrlsafeset stack-based overflow
A flaw has been found in Tenda F456 1.0.0.5. This vulnerability affects the function formWrlsafeset of the file /goform/AdvSetWrlsafeset. Executing a manipulation of the argument mit_ssid can lead to stack-based buffer overflow. The attack may be performed fr…
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High 8.8
Tenda F456 exeCommand fromexeCommand stack-based overflow
A vulnerability was detected in Tenda F456 1.0.0.5. This affects the function fromexeCommand of the file /goform/exeCommand. Performing a manipulation of the argument cmdinput results in stack-based buffer overflow. The attack is possible to be carried out re…
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High 8.8
Totolink A3002MU HTTP Request formWlanSetup sub_410188 stack-based overflow
A weakness has been identified in Totolink A3002MU B20211125.1046. Affected by this vulnerability is the function sub_410188 of the file /boafrm/formWlanSetup of the component HTTP Request Handler. This manipulation of the argument wan-url causes stack-based …
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High 8.8
UTT HiPER 1200GW formNatStaticMap strcpy buffer overflow
A security vulnerability has been detected in UTT HiPER 1200GW up to 2.5.3-170306. This vulnerability affects the function strcpy of the file /goform/formNatStaticMap. The manipulation of the argument NatBind leads to buffer overflow. The attack is possible t…
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High 8.8
TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow
A flaw has been found in TOTOLINK A7000R up to 9.1.0u.6115. The affected element is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ssid5g causes stack-based buffer overflow. Remote exploitation of the atta…
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Medium 6.8
Boundary-unlimited vulnerability in the application read module. Impact: Successful exploitation of this vulnerability …
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High 8.8
Totolink A800R app.so setAppEasyWizardConfig buffer overflow
A vulnerability was detected in Totolink A800R 4.1.2cu.5137_B20200730. This impacts the function setAppEasyWizardConfig in the library /lib/cste_modules/app.so. The manipulation of the argument apcliSsid results in buffer overflow. The attack can be executed …
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High 8.8
Tenda F451 AdvSetWan fromAdvSetWan stack-based overflow
A vulnerability was detected in Tenda F451 1.0.0.7_cn_svn7958. The affected element is the function fromAdvSetWan of the file /goform/AdvSetWan. The manipulation of the argument wanmode/PPPOEPassword results in stack-based buffer overflow. It is possible to l…
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High 8.8
Tenda F451 L7Im frmL7ImForm stack-based overflow
A security vulnerability has been detected in Tenda F451 1.0.0.7_cn_svn7958. Impacted is the function frmL7ImForm of the file /goform/L7Im. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to initiate the attack remot…
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High 8.8
Tenda F451 SetIpBind fromSetIpBind stack-based overflow
A weakness has been identified in Tenda F451 1.0.0.7_cn_svn7958. This issue affects the function fromSetIpBind of the file /goform/SetIpBind. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack may be performed fr…
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High 8.8
Tenda F451 qossetting fromqossetting stack-based overflow
A security flaw has been discovered in Tenda F451 1.0.0.7_cn_svn7958. This vulnerability affects the function fromqossetting of the file /goform/qossetting. Performing a manipulation of the argument qos results in stack-based buffer overflow. The attack is po…
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High 8.8
Tenda F451 SafeUrlFilter fromSafeUrlFilter stack-based overflow
A vulnerability was identified in Tenda F451 1.0.0.7_cn_svn7958. This affects the function fromSafeUrlFilter of the file /goform/SafeUrlFilter. Such manipulation of the argument page leads to stack-based buffer overflow. The attack can be executed remotely. T…
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High 8.8
Tenda F451 httpd SafeMacFilter fromSafeMacFilter stack-based overflow
A vulnerability was determined in Tenda F451 1.0.0.7. This vulnerability affects the function fromSafeMacFilter of the file /goform/SafeMacFilter of the component httpd. Executing a manipulation of the argument page/menufacturer can lead to stack-based buffer…
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High 8.8
Tenda F451 httpd addressNat fromAddressNat stack-based overflow
A vulnerability was found in Tenda F451 1.0.0.7. This affects the function fromAddressNat of the file /goform/addressNat of the component httpd. Performing a manipulation of the argument entrys results in stack-based buffer overflow. Remote exploitation of th…
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High 8.8
Tenda F451 httpd L7Prot frmL7ProtForm stack-based overflow
A vulnerability has been found in Tenda F451 1.0.0.7. Affected by this issue is the function frmL7ProtForm of the file /goform/L7Prot of the component httpd. Such manipulation of the argument page leads to stack-based buffer overflow. The attack may be launch…
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High 8.8
Tenda F451 httpd WrlclientSet stack-based overflow
A flaw has been found in Tenda F451 1.0.0.7. Affected by this vulnerability is the function WrlclientSet of the file /goform/WrlclientSet of the component httpd. This manipulation of the argument GO causes stack-based buffer overflow. The attack may be initia…
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High 8.8
Tenda F451 httpd DhcpListClient fromDhcpListClient stack-based overflow
A vulnerability was detected in Tenda F451 1.0.0.7. Affected is the function fromDhcpListClient of the file /goform/DhcpListClient of the component httpd. The manipulation of the argument page results in stack-based buffer overflow. The attack can be launched…
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Critical 10.0
Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code Execution Vulnerability
Sonos Era 300 SMB Response Out-Of-Bounds Access Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Sonos Era 300. Authentication is not required to exploit this vulnerability.…
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High 8.8
Tenda AC9 POST Request WizardHandle decodePwd stack-based overflow
A vulnerability was found in Tenda AC9 15.03.02.13. The affected element is the function decodePwd of the file /goform/WizardHandle of the component POST Request Handler. Performing a manipulation of the argument WANS results in stack-based buffer overflow. T…
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High 8.8
Tenda AC9 POST Request QuickIndex formQuickIndex stack-based overflow
A vulnerability has been found in Tenda AC9 15.03.02.13. Impacted is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. Such manipulation of the argument PPPOEPassword leads to stack-based buffer overflow. It is …
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High 8.8
D-Link DIR-513 POST Request formAdvanceSetup buffer overflow
A flaw has been found in D-Link DIR-513 1.10. This issue affects the function formAdvanceSetup of the file /goform/formAdvanceSetup of the component POST Request Handler. This manipulation of the argument webpage causes buffer overflow. It is possible to init…
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High 8.8
D-Link DIR-513 POST Request formSetRoute buffer overflow
A vulnerability was detected in D-Link DIR-513 1.10. This vulnerability affects the function formSetRoute of the file /goform/formSetRoute of the component POST Request Handler. The manipulation of the argument curTime results in buffer overflow. The attack m…
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High 8.8
D-Link DIR-513 POST Request formSetPassword buffer overflow
A security vulnerability has been detected in D-Link DIR-513 1.10. This affects the function formSetPassword of the file /goform/formSetPassword of the component POST Request Handler. The manipulation of the argument curTime leads to buffer overflow. The atta…
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High 8.8
Tenda F451 P2pListFilter fromP2pListFilter stack-based overflow
A vulnerability was determined in Tenda F451 1.0.0.7. This affects the function fromP2pListFilter of the file /goform/P2pListFilter. This manipulation of the argument page causes stack-based buffer overflow. Remote exploitation of the attack is possible. The …
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High 8.8
Tenda F451 WrlExtraSet formWrlExtraSet stack-based overflow
A vulnerability was found in Tenda F451 1.0.0.7. Affected by this issue is the function formWrlExtraSet of the file /goform/WrlExtraSet. The manipulation of the argument GO results in stack-based buffer overflow. The attack may be launched remotely. The explo…
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High 8.8
Tenda F451 SafeEmailFilter fromSafeEmailFilter stack-based overflow
A vulnerability has been found in Tenda F451 1.0.0.7. Affected by this vulnerability is the function fromSafeEmailFilter of the file /goform/SafeEmailFilter. The manipulation of the argument page leads to stack-based buffer overflow. The attack may be initiat…
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High 8.8
Tenda F451 RouteStatic fromRouteStatic stack-based overflow
A flaw has been found in Tenda F451 1.0.0.7. Affected is the function fromRouteStatic of the file /goform/RouteStatic. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack can be launched remotely. The exploit has …
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High 8.8
Tenda F451 AdvSetWrlsafeset formWrlsafeset stack-based overflow
A vulnerability was detected in Tenda F451 1.0.0.7. This impacts the function formWrlsafeset of the file /goform/AdvSetWrlsafeset. Performing a manipulation of the argument mit_ssid results in stack-based buffer overflow. The attack can be initiated remotely.…
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High 8.8
D-Link DIR-605L POST Request formSetLog buffer overflow
A vulnerability was identified in D-Link DIR-605L 2.13B01. Impacted is the function formSetLog of the file /goform/formSetLog of the component POST Request Handler. The manipulation of the argument curTime leads to buffer overflow. The attack is possible to b…
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High 8.8
D-Link DIR-605L POST Request formSetDDNS buffer overflow
A vulnerability was determined in D-Link DIR-605L 2.13B01. This issue affects the function formSetDDNS of the file /goform/formSetDDNS of the component POST Request Handler. Executing a manipulation of the argument curTime can lead to buffer overflow. The att…
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High 8.8
D-Link DIR-605L POST Request formAdvNetwork buffer overflow
A vulnerability was found in D-Link DIR-605L 2.13B01. This vulnerability affects the function formAdvNetwork of the file /goform/formAdvNetwork of the component POST Request Handler. Performing a manipulation of the argument curTime results in buffer overflow…
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High 8.8
D-Link DIR-605L POST Request formAdvFirewall buffer overflow
A vulnerability has been found in D-Link DIR-605L 2.13B01. This affects the function formAdvFirewall of the file /goform/formAdvFirewall of the component POST Request Handler. Such manipulation of the argument curTime leads to buffer overflow. The attack may …
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High 8.8
D-Link DIR-605L POST Request formSetMACFilter buffer overflow
A flaw has been found in D-Link DIR-605L 2.13B01. Affected by this issue is the function formSetMACFilter of the file /goform/formSetMACFilter of the component POST Request Handler. This manipulation of the argument curTime causes buffer overflow. The attack …
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High 8.8
D-Link DIR-605L POST Request formVirtualServ buffer overflow
A vulnerability was detected in D-Link DIR-605L 2.13B01. Affected by this vulnerability is the function formVirtualServ of the file /goform/formVirtualServ of the component POST Request Handler. The manipulation of the argument curTime results in buffer overf…
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Low 2.3
Wasmtime leaks data between pooling allocator instances
Wasmtime is a runtime for WebAssembly. From 28.0.0 to before 36.0.7, 42.0.2, and 43.0.1, Wasmtime's implementation of its pooling allocator contains a bug where in certain configurations the contents of linear memory can be leaked from one instance to the nex…
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Medium 5.9
Wasmtime panics when transcoding misaligned utf-16 strings
Wasmtime is a runtime for WebAssembly. Prior to 24.0.7, 36.0.7, 42.0.2, and 43.0.1, Wasmtime's implementation of transcoding strings into the Component Model's utf16 or latin1+utf16 encodings improperly verified the alignment of reallocated strings. This mean…