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.
15122 vulnerabilities reference this CWE, most recent first.
GHSA-WV9P-MPX3-MVR5
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2024-05-03 03:31
VLAI
Details
D-Link DCS-8300LHV2 RTSP ValidateAuthorizationHeader Nonce Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DCS-8300LHV2 IP cameras. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of the Authorization header by the RTSP server, which listens on TCP port 554. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20072.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-51624"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:16:25Z",
"severity": "HIGH"
},
"details": "D-Link DCS-8300LHV2 RTSP ValidateAuthorizationHeader Nonce Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DCS-8300LHV2 IP cameras. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of the Authorization header by the RTSP server, which listens on TCP port 554. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20072.",
"id": "GHSA-wv9p-mpx3-mvr5",
"modified": "2024-05-03T03:31:10Z",
"published": "2024-05-03T03:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51624"
},
{
"type": "WEB",
"url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10370"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-044"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WVC6-5MPX-7F77
Vulnerability from github – Published: 2022-12-08 18:30 – Updated: 2022-12-09 15:30
VLAI
Details
Tenda W6-S v1.0.0.4(510) was discovered to contain a stack overflow via the wl_radio parameter at /goform/WifiMacFilterGet.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2022-45499"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-08T16:15:00Z",
"severity": "CRITICAL"
},
"details": "Tenda W6-S v1.0.0.4(510) was discovered to contain a stack overflow via the wl_radio parameter at /goform/WifiMacFilterGet.",
"id": "GHSA-wvc6-5mpx-7f77",
"modified": "2022-12-09T15:30:30Z",
"published": "2022-12-08T18:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-45499"
},
{
"type": "WEB",
"url": "https://github.com/z1r00/IOT_Vul/blob/main/Tenda/W6-S/WifiMacFilterGet/readme.md"
}
],
"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"
}
]
}
GHSA-WVC7-MVW8-4V82
Vulnerability from github – Published: 2023-08-13 12:30 – Updated: 2024-04-04 06:53
VLAI
Details
Vulnerability of out-of-bounds parameter read/write in the Wi-Fi module. Successful exploitation of this vulnerability may cause other apps to be executed with escalated privileges.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2023-39405"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-13T12:15:46Z",
"severity": "CRITICAL"
},
"details": "Vulnerability of out-of-bounds parameter read/write in the Wi-Fi module. Successful exploitation of this vulnerability may cause other apps to be executed with escalated privileges.",
"id": "GHSA-wvc7-mvw8-4v82",
"modified": "2024-04-04T06:53:54Z",
"published": "2023-08-13T12:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39405"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2023/8"
},
{
"type": "WEB",
"url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-202308-0000001667644725"
}
],
"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"
}
]
}
GHSA-WVCX-99HH-XJMX
Vulnerability from github – Published: 2022-05-24 17:03 – Updated: 2022-05-24 17:03
VLAI
Details
A vulnerability has been identified in SPPA-T3000 MS3000 Migration Server (All versions). An attacker with network access to the MS3000 Server could trigger a Denial-of-Service condition by sending specifically crafted packets to port 5010/tcp. This vulnerability is independent from CVE-2019-18290, CVE-2019-18291, CVE-2019-18292, CVE-2019-18298, CVE-2019-18299, CVE-2019-18300, CVE-2019-18301, CVE-2019-18302, CVE-2019-18303, CVE-2019-18304, CVE-2019-18305, CVE-2019-18306, and CVE-2019-18307. Please note that an attacker needs to have network access to the MS3000 in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.
{
"affected": [],
"aliases": [
"CVE-2019-18294"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-12-12T19:15:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability has been identified in SPPA-T3000 MS3000 Migration Server (All versions). An attacker with network access to the MS3000 Server could trigger a Denial-of-Service condition by sending specifically crafted packets to port 5010/tcp. This vulnerability is independent from CVE-2019-18290, CVE-2019-18291, CVE-2019-18292, CVE-2019-18298, CVE-2019-18299, CVE-2019-18300, CVE-2019-18301, CVE-2019-18302, CVE-2019-18303, CVE-2019-18304, CVE-2019-18305, CVE-2019-18306, and CVE-2019-18307. Please note that an attacker needs to have network access to the MS3000 in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.",
"id": "GHSA-wvcx-99hh-xjmx",
"modified": "2022-05-24T17:03:24Z",
"published": "2022-05-24T17:03:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18294"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-451445.pdf"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/155665/Siemens-Security-Advisory-SPPA-T3000-Code-Execution.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-WVF6-6FCJ-RRXV
Vulnerability from github – Published: 2023-03-29 21:30 – Updated: 2024-11-27 21:32
VLAI
Details
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDF files. Crafted data in a PDF file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17724.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-37369"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-29T19:15:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDF files. Crafted data in a PDF file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17724.",
"id": "GHSA-wvf6-6fcj-rrxv",
"modified": "2024-11-27T21:32:42Z",
"published": "2023-03-29T21:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-37369"
},
{
"type": "WEB",
"url": "https://www.tracker-software.com/product/pdf-xchange-editor/history"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-1097"
}
],
"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-WVG5-MM8H-8GWP
Vulnerability from github – Published: 2023-03-24 21:30 – Updated: 2023-03-29 15:30
VLAI
Details
In SDP_AddAttribute of sdp_db.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-261867748
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2023-20954"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-24T20:15:00Z",
"severity": "CRITICAL"
},
"details": "In SDP_AddAttribute of sdp_db.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-261867748",
"id": "GHSA-wvg5-mm8h-8gwp",
"modified": "2023-03-29T15:30:17Z",
"published": "2023-03-24T21:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20954"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2023-03-01"
}
],
"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"
}
]
}
GHSA-WVG8-QGR2-X6CJ
Vulnerability from github – Published: 2024-07-09 21:30 – Updated: 2024-07-12 18:31
VLAI
Details
In RGXFWChangeOSidPriority of rgxfwutils.c, there is a possible arbitrary code execution due to a missing bounds check. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-23698"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-09T21:15:12Z",
"severity": "HIGH"
},
"details": "In RGXFWChangeOSidPriority of rgxfwutils.c, there is a possible arbitrary code execution due to a missing bounds check. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-wvg8-qgr2-x6cj",
"modified": "2024-07-12T18:31:47Z",
"published": "2024-07-09T21:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23698"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2024-06-01"
}
],
"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-WVG9-27W3-XHH7
Vulnerability from github – Published: 2022-05-24 17:17 – Updated: 2024-02-01 03:30
VLAI
Details
An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2020-12659"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-05-05T07:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.",
"id": "GHSA-wvg9-27w3-xhh7",
"modified": "2024-02-01T03:30:23Z",
"published": "2022-05-24T17:17:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12659"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02"
},
{
"type": "WEB",
"url": "https://bugzilla.kernel.org/show_bug.cgi?id=207225"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99e3a236dd43d06c65af0a2ef9cb44306aef6e02"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20200608-0001"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4387-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4388-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4389-1"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WVH2-2JP3-FX4R
Vulnerability from github – Published: 2022-05-13 01:03 – Updated: 2022-05-13 01:03
VLAI
Details
Apache OpenOffice.org (OOo) before 4.0 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via invalid PLCF data in a DOC document file.
{
"affected": [],
"aliases": [
"CVE-2013-2189"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2013-07-31T13:20:00Z",
"severity": "MODERATE"
},
"details": "Apache OpenOffice.org (OOo) before 4.0 allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via invalid PLCF data in a DOC document file.",
"id": "GHSA-wvh2-2jp3-fx4r",
"modified": "2022-05-13T01:03:57Z",
"published": "2022-05-13T01:03:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-2189"
},
{
"type": "WEB",
"url": "http://osvdb.org/95704"
},
{
"type": "WEB",
"url": "http://seclists.org/bugtraq/2013/Jul/173"
},
{
"type": "WEB",
"url": "http://www.openoffice.org/security/cves/CVE-2013-2189.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-WVHQ-3H88-RF6G
Vulnerability from github – Published: 2026-01-27 18:32 – Updated: 2026-07-14 15:31
VLAI
Details
Issue summary: Parsing CMS AuthEnvelopedData message with maliciously crafted AEAD parameters can trigger a stack buffer overflow.
Impact summary: A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote code execution.
When parsing CMS AuthEnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is copied into a fixed-size stack buffer without verifying that its length fits the destination. An attacker can supply a crafted CMS message with an oversized IV, causing a stack-based out-of-bounds write before any authentication or tag verification occurs.
Applications and services that parse untrusted CMS or PKCS#7 content using AEAD ciphers (e.g., S/MIME AuthEnvelopedData with AES-GCM) are vulnerable. Because the overflow occurs prior to authentication, no valid key material is required to trigger it. While exploitability to remote code execution depends on platform and toolchain mitigations, the stack-based write primitive represents a severe risk.
The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary.
OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue.
OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2025-15467"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-27T16:16:14Z",
"severity": "CRITICAL"
},
"details": "Issue summary: Parsing CMS AuthEnvelopedData message with maliciously\ncrafted AEAD parameters can trigger a stack buffer overflow.\n\nImpact summary: A stack buffer overflow may lead to a crash, causing Denial\nof Service, or potentially remote code execution.\n\nWhen parsing CMS AuthEnvelopedData structures that use AEAD ciphers such as\nAES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is\ncopied into a fixed-size stack buffer without verifying that its length fits\nthe destination. An attacker can supply a crafted CMS message with an\noversized IV, causing a stack-based out-of-bounds write before any\nauthentication or tag verification occurs.\n\nApplications and services that parse untrusted CMS or PKCS#7 content using\nAEAD ciphers (e.g., S/MIME AuthEnvelopedData with AES-GCM) are vulnerable.\nBecause the overflow occurs prior to authentication, no valid key material\nis required to trigger it. While exploitability to remote code execution\ndepends on platform and toolchain mitigations, the stack-based write\nprimitive represents a severe risk.\n\nThe FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this\nissue, as the CMS implementation is outside the OpenSSL FIPS module\nboundary.\n\nOpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue.\n\nOpenSSL 1.1.1 and 1.0.2 are not affected by this issue.",
"id": "GHSA-wvhq-3h88-rf6g",
"modified": "2026-07-14T15:31:39Z",
"published": "2026-01-27T18:32:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15467"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/d0071a0799f20cc8101730145349ed4487c268dc"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/ce39170276daec87f55c39dad1f629b56344429e"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/6ced0fe6b10faa560e410e3ee8d6c82f06c65ea3"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/5f26d4202f5b89664c5c3f3c62086276026ba9a9"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/2c8f0e5fa9b6ee5508a0349e4572ddb74db5a703"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:1472"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:3461"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:3462"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:4419"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:4943"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6481"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7261"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-15467"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2430376"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-434797.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-734552.html"
},
{
"type": "WEB",
"url": "https://github.com/guiimoraes/CVE-2025-15467"
},
{
"type": "WEB",
"url": "https://openssl-library.org/news/secadv/20260127.txt"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-15467.json"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:1473"
},
{
"type": "WEB",
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{
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{
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"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"
}
]
}
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.