Common Weakness Enumeration
CWE-787
Allowed-with-ReviewOut-of-bounds Write
Abstraction: Base · Status: Draft
The product writes data past the end, or before the beginning, of the intended buffer.
15200 vulnerabilities reference this CWE, most recent first.
CVE-2021-22672 (GCVE-0-2021-22672)
Vulnerability from cvelistv5 – Published: 2021-05-10 12:29 – Updated: 2024-08-03 18:51
VLAI
EPSS
VEX
Summary
Delta Electronics' CNCSoft ScreenEditor in versions prior to v1.01.30 could allow the corruption of data, a denial-of-service condition, or code execution. The vulnerability may allow an attacker to remotely execute arbitrary code.
Severity
No CVSS data available.
CWE
- CWE-787 - OUT-OF-BOUNDS WRITE CWE-787
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-124-02 | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Delta Electronics CNCSoft ScreenEditor |
Affected:
CNCSoft ScreenEditor versions prior to v1.01.30
|
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CVE-2021-22664 (GCVE-0-2021-22664)
Vulnerability from cvelistv5 – Published: 2021-04-27 12:26 – Updated: 2024-08-03 18:51
VLAI
EPSS
VEX
Summary
CNCSoft-B Versions 1.0.0.3 and prior is vulnerable to an out-of-bounds write, which may allow an attacker to execute arbitrary code.
Severity
No CVSS data available.
CWE
- CWE-787 - CVE-2021-22664: OUT-OF-BOUNDS WRITE CWE-787
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-110-05 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Delta Electronics CNCSoft-B |
Affected:
CNCSoft-B Versions 1.0.0.3 and prior
|
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CVE-2021-22653 (GCVE-0-2021-22653)
Vulnerability from cvelistv5 – Published: 2021-01-27 19:01 – Updated: 2024-08-03 18:51
VLAI
EPSS
VEX
Summary
Multiple out-of-bounds write issues have been identified in the way the application processes project files, allowing an attacker to craft a special project file that may allow arbitrary code execution on the Tellus Lite V-Simulator and V-Server Lite (versions prior to 4.0.10.0).
Severity
No CVSS data available.
CWE
- CWE-787 - OUT-OF-BOUNDS WRITE CWE-787
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-026-01 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Tellus Lite V-Simulator and V-Server Lite |
Affected:
Versions prior to 4.0.10.0
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CVE-2021-22647 (GCVE-0-2021-22647)
Vulnerability from cvelistv5 – Published: 2021-02-23 03:13 – Updated: 2024-08-03 18:44
VLAI
EPSS
VEX
Summary
Luxion KeyShot versions prior to 10.1, Luxion KeyShot Viewer versions prior to 10.1, Luxion KeyShot Network Rendering versions prior to 10.1, and Luxion KeyVR versions prior to 10.1 are vulnerable to multiple out-of-bounds write issues while processing project files, which may allow an attacker to execute arbitrary code.
Severity
No CVSS data available.
CWE
- CWE-787 - OUT-OF-BOUNDS WRITE CWE-787
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-035-01 | x_refsource_MISC |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Luxion KeyShot |
Affected:
versions prior to 10.1
|
|
| n/a | Luxion KeyShot Viewer |
Affected:
versions prior to 10.1
|
|
| n/a | Luxion KeyShot Network Rendering |
Affected:
versions prior to 10.1
|
|
| n/a | Luxion KeyVR |
Affected:
versions prior to 10.1
|
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CVE-2021-22555 (GCVE-0-2021-22555)
Vulnerability from cvelistv5 – Published: 2021-07-07 11:20 – Updated: 2025-12-30 20:32
VLAI
EPSS
VEX
Title
Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE
Summary
A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space
Severity
8.3 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/google/security-research/secur… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| http://packetstormsecurity.com/files/163528/Linux… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021080… | x_refsource_CONFIRM |
| http://packetstormsecurity.com/files/163878/Kerne… | x_refsource_MISC |
| http://packetstormsecurity.com/files/164155/Kerne… | x_refsource_MISC |
| http://packetstormsecurity.com/files/164437/Netfi… | x_refsource_MISC |
| http://packetstormsecurity.com/files/165477/Kerne… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Linux Kernel |
Affected:
2.6.19-rc1 , < unspecified
(custom)
|
Date Public
2021-07-04 00:00
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CVE-2021-21971 (GCVE-0-2021-21971)
Vulnerability from cvelistv5 – Published: 2022-02-04 22:29 – Updated: 2025-04-15 19:11
VLAI
EPSS
VEX
Summary
An out-of-bounds write vulnerability exists in the URL_decode functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted MQTT payload can lead to an out-of-bounds write. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
Impacted products
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CVE-2021-21871 (GCVE-0-2021-21871)
Vulnerability from cvelistv5 – Published: 2021-06-29 15:10 – Updated: 2024-08-03 18:23
VLAI
EPSS
VEX
Summary
A memory corruption vulnerability exists in the DMG File Format Handler functionality of PowerISO 7.9. A specially crafted DMG file can lead to an out-of-bounds write. An attacker can provide a malicious file to trigger this vulnerability. The vendor fixed it in a bug-release of the current version.
Severity
8.8 (High)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
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CVE-2021-21703 (GCVE-0-2021-21703)
Vulnerability from cvelistv5 – Published: 2021-10-25 05:40 – Updated: 2024-09-17 03:02
VLAI
EPSS
VEX
Title
PHP-FPM memory access in root process leading to privilege escalation
Summary
In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.
Severity
7.8 (High)
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://bugs.php.net/bug.php?id=81026 | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4992 | vendor-advisoryx_refsource_DEBIAN |
| https://www.debian.org/security/2021/dsa-4993 | vendor-advisoryx_refsource_DEBIAN |
| http://www.openwall.com/lists/oss-security/2021/10/26/7 | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021111… | x_refsource_CONFIRM |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://security.gentoo.org/glsa/202209-20 | vendor-advisoryx_refsource_GENTOO |
Impacted products
Date Public
2021-10-18 00:00
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CVE-2021-21280 (GCVE-0-2021-21280)
Vulnerability from cvelistv5 – Published: 2021-06-18 20:35 – Updated: 2024-08-03 18:09
VLAI
EPSS
VEX
Title
Out-of-bounds write when processing 6LoWPAN extension headers
Summary
Contiki-NG is an open-source, cross-platform operating system for internet of things devices. It is possible to cause an out-of-bounds write in versions of Contiki-NG prior to 4.6 when transmitting a 6LoWPAN packet with a chain of extension headers. Unfortunately, the written header is not checked to be within the available space, thereby making it possible to write outside the buffer. The problem has been patched in Contiki-NG 4.6. Users can apply the patch for this vulnerability out-of-band as a workaround.
Severity
8.6 (High)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/contiki-ng/contiki-ng/security… | x_refsource_CONFIRM |
| https://github.com/contiki-ng/contiki-ng/pull/1409 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
< 4.6
|
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CVE-2021-21257 (GCVE-0-2021-21257)
Vulnerability from cvelistv5 – Published: 2021-06-18 20:55 – Updated: 2024-08-03 18:09
VLAI
EPSS
VEX
Title
Out-of-bounds write in RPL-Classic and RPL-Lite
Summary
Contiki-NG is an open-source, cross-platform operating system for internet of things devices. The RPL-Classic and RPL-Lite implementations in the Contiki-NG operating system versions prior to 4.6 do not validate the address pointer in the RPL source routing header This makes it possible for an attacker to cause out-of-bounds writes with packets injected into the network stack. Specifically, the problem lies in the rpl_ext_header_srh_update function in the two rpl-ext-header.c modules for RPL-Classic and RPL-Lite respectively. The addr_ptr variable is calculated using an unvalidated CMPR field value from the source routing header. An out-of-bounds write can be triggered on line 151 in os/net/routing/rpl-lite/rpl-ext-header.c and line 261 in os/net/routing/rpl-classic/rpl-ext-header.c, which contain the following memcpy call with addr_ptr as destination. The problem has been patched in Contiki-NG 4.6. Users can apply a patch out-of-band as a workaround.
Severity
8.2 (High)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/contiki-ng/contiki-ng/security… | x_refsource_CONFIRM |
| https://github.com/contiki-ng/contiki-ng/pull/1431 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| contiki-ng | contiki-ng |
Affected:
< 4.6
|
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Mitigation MIT-3
Requirements
Strategy: Language Selection
- 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.
Mitigation MIT-4.1
Architecture and Design
Strategy: Libraries or Frameworks
- 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.
Mitigation MIT-10
Operation
Build and Compilation
Strategy: Environment Hardening
- 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.
Mitigation MIT-9
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.
Mitigation MIT-11
Operation
Build and Compilation
Strategy: Environment Hardening
- 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].
Mitigation MIT-12
Operation
Strategy: Environment Hardening
- 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].
Mitigation MIT-13
Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
No CAPEC attack patterns related to this CWE.