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.
15607 vulnerabilities reference this CWE, most recent first.
GHSA-5CWV-6XQX-92M5
Vulnerability from github – Published: 2024-07-02 21:32 – Updated: 2026-02-25 21:31
VLAI
Details
A flaw was found in the QEMU disk image utility (qemu-img) 'info' command. A specially crafted image file containing a json:{} value describing block devices in QMP could cause the qemu-img process on the host to consume large amounts of memory or CPU time, leading to denial of service or read/write to an existing external file.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-4467"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-02T16:15:05Z",
"severity": "HIGH"
},
"details": "A flaw was found in the QEMU disk image utility (qemu-img) \u0027info\u0027 command. A specially crafted image file containing a `json:{}` value describing block devices in QMP could cause the qemu-img process on the host to consume large amounts of memory or CPU time, leading to denial of service or read/write to an existing external file.",
"id": "GHSA-5cwv-6xqx-92m5",
"modified": "2026-02-25T21:31:17Z",
"published": "2024-07-02T21:32:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-4467"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4276"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4277"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4278"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4372"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4373"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4374"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4420"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4724"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:4727"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2024-4467"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278875"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20240822-0005"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/07/23/2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5CX7-5PRR-62VR
Vulnerability from github – Published: 2022-05-13 01:19 – Updated: 2022-05-13 01:19
VLAI
Details
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2018-20177"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-15T18:29:00Z",
"severity": "CRITICAL"
},
"details": "rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.",
"id": "GHSA-5cx7-5prr-62vr",
"modified": "2022-05-13T01:19:52Z",
"published": "2022-05-13T01:19:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20177"
},
{
"type": "WEB",
"url": "https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html"
},
{
"type": "WEB",
"url": "https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201903-06"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4394"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106938"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5CX9-6HW2-HCHV
Vulnerability from github – Published: 2026-06-25 21:31 – Updated: 2026-06-25 21:31
VLAI
Details
RTKLIB through 2.4.3 contains an out-of-bounds write vulnerability in decode_type1033 function that fails to clamp length counters to destination buffer size, allowing up to 191-byte overflow into fixed 64-byte descriptor fields. An attacker controlling an NTRIP or serial RTCM3 correction stream can craft a valid CRC-bearing type-1033 message to corrupt adjacent rtcm_t object members, potentially achieving arbitrary code execution or denial of service.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-56786"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T19:16:44Z",
"severity": "CRITICAL"
},
"details": "RTKLIB through 2.4.3 contains an out-of-bounds write vulnerability in decode_type1033 function that fails to clamp length counters to destination buffer size, allowing up to 191-byte overflow into fixed 64-byte descriptor fields. An attacker controlling an NTRIP or serial RTCM3 correction stream can craft a valid CRC-bearing type-1033 message to corrupt adjacent rtcm_t object members, potentially achieving arbitrary code execution or denial of service.",
"id": "GHSA-5cx9-6hw2-hchv",
"modified": "2026-06-25T21:31:30Z",
"published": "2026-06-25T21:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56786"
},
{
"type": "WEB",
"url": "https://github.com/tomojitakasu/RTKLIB/issues/799"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/rtklib-out-of-bounds-write-in-decode-type1033-via-crafted-rtcm3-message"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-5F2C-C2F3-J48W
Vulnerability from github – Published: 2023-07-11 12:30 – Updated: 2024-04-04 05:55
VLAI
Details
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0008), Tecnomatix Plant Simulation V2302 (All versions < V2302.0002). The affected application is vulnerable to stack-based buffer overflow while parsing specially crafted SPP files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-21060)
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-37375"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-11T10:15:11Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions \u003c V2201.0008), Tecnomatix Plant Simulation V2302 (All versions \u003c V2302.0002). The affected application is vulnerable to stack-based buffer overflow while parsing specially crafted SPP files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-21060)",
"id": "GHSA-5f2c-c2f3-j48w",
"modified": "2024-04-04T05:55:58Z",
"published": "2023-07-11T12:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37375"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-764801.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5F2P-3Q97-RPW3
Vulnerability from github – Published: 2025-04-29 18:31 – Updated: 2025-04-29 18:31
VLAI
Details
A vulnerability classified as critical was found in code-projects School Billing System 1.0. This vulnerability affects the function searchrec. The manipulation of the argument Name leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
Severity
5.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-4077"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-29T18:15:46Z",
"severity": "MODERATE"
},
"details": "A vulnerability classified as critical was found in code-projects School Billing System 1.0. This vulnerability affects the function searchrec. The manipulation of the argument Name leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.",
"id": "GHSA-5f2p-3q97-rpw3",
"modified": "2025-04-29T18:31:00Z",
"published": "2025-04-29T18:31:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4077"
},
{
"type": "WEB",
"url": "https://code-projects.org"
},
{
"type": "WEB",
"url": "https://github.com/zzzxc643/cve/blob/main/SCHOOL_BILLING_SYSTEM.md"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.306514"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.306514"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.560534"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-5F3W-43F5-G5G2
Vulnerability from github – Published: 2022-05-24 19:07 – Updated: 2022-05-24 19:07
VLAI
Details
A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The BMP_Loader.dll library in affected applications lacks proper validation of user-supplied data when parsing BMP files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13059)
{
"affected": [],
"aliases": [
"CVE-2021-34297"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-07-13T11:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in JT2Go (All versions \u003c V13.2), Teamcenter Visualization (All versions \u003c V13.2). The BMP_Loader.dll library in affected applications lacks proper validation of user-supplied data when parsing BMP files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13059)",
"id": "GHSA-5f3w-43f5-g5g2",
"modified": "2022-05-24T19:07:42Z",
"published": "2022-05-24T19:07:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34297"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-832"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5F45-H685-7WW2
Vulnerability from github – Published: 2024-12-05 00:34 – Updated: 2024-12-05 00:34
VLAI
Details
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 to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.
Severity
5.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-12186"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-05T00:15:18Z",
"severity": "MODERATE"
},
"details": "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 to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.",
"id": "GHSA-5f45-h685-7ww2",
"modified": "2024-12-05T00:34:59Z",
"published": "2024-12-05T00:34:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-12186"
},
{
"type": "WEB",
"url": "https://code-projects.org"
},
{
"type": "WEB",
"url": "https://github.com/1zzan/cve/blob/main/STACK-OVERFLOW2.md"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.286907"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.286907"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.454846"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-5F46-4729-JPRM
Vulnerability from github – Published: 2022-05-24 19:04 – Updated: 2022-10-08 00:00
VLAI
Details
SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher), versions - KRNL32NUC - 7.22,7.22EXT, KRNL32UC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method DpRTmPrepareReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2021-27628"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-09T14:15:00Z",
"severity": "HIGH"
},
"details": "SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher), versions - KRNL32NUC - 7.22,7.22EXT, KRNL32UC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method DpRTmPrepareReq() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.",
"id": "GHSA-5f46-4729-jprm",
"modified": "2022-10-08T00:00:31Z",
"published": "2022-05-24T19:04:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27628"
},
{
"type": "WEB",
"url": "https://launchpad.support.sap.com/#/notes/3021197"
},
{
"type": "WEB",
"url": "https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/164591/SAP-NetWeaver-ABAP-Dispatcher-Service-Memory-Corruption.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2021/Oct/27"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5F47-2V24-G377
Vulnerability from github – Published: 2025-07-25 18:30 – Updated: 2025-07-25 18:30
VLAI
Details
The following APIs for the Silcon Labs SiWx91x prior to vesion 3.4.0 failed to check the size of the output buffer of the caller which could lead to data corruption on the host (Cortex-M4) application.
sl_si91x_aes sl_si91x_gcm sl_si91x_ccm sl_si91x_sha
Severity
{
"affected": [],
"aliases": [
"CVE-2025-3873"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-25T16:15:33Z",
"severity": "MODERATE"
},
"details": "The following APIs for the Silcon Labs SiWx91x prior to vesion 3.4.0 failed to check the size of the output buffer of the caller which could lead to data corruption on the host (Cortex-M4) application.\n\n\nsl_si91x_aes\nsl_si91x_gcm\nsl_si91x_ccm \nsl_si91x_sha",
"id": "GHSA-5f47-2v24-g377",
"modified": "2025-07-25T18:30:40Z",
"published": "2025-07-25T18:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3873"
},
{
"type": "WEB",
"url": "https://community.silabs.com/068Vm00000SSlOu"
},
{
"type": "WEB",
"url": "https://docs.silabs.com/wiseconnect/latest/sisdk-wifi-release-notes"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-5F5V-7W3C-2RM9
Vulnerability from github – Published: 2022-05-13 01:34 – Updated: 2022-05-13 01:34
VLAI
Details
WECON Technology Co., Ltd. PI Studio HMI versions 4.1.9 and prior and PI Studio versions 4.2.34 and prior parse files and pass invalidated user data to an unsafe method call, which may allow code to be executed in the context of an administrator.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-14810"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-08T12:29:00Z",
"severity": "HIGH"
},
"details": "WECON Technology Co., Ltd. PI Studio HMI versions 4.1.9 and prior and PI Studio versions 4.2.34 and prior parse files and pass invalidated user data to an unsafe method call, which may allow code to be executed in the context of an administrator.",
"id": "GHSA-5f5v-7w3c-2rm9",
"modified": "2022-05-13T01:34:26Z",
"published": "2022-05-13T01:34:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14810"
},
{
"type": "WEB",
"url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-277-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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.