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.
15107 vulnerabilities reference this CWE, most recent first.
GHSA-W83R-GJ25-6VRC
Vulnerability from github – Published: 2024-11-08 06:30 – Updated: 2025-05-22 15:34In the Linux kernel, the following vulnerability has been resolved:
bpf, arm64: Fix address emission with tag-based KASAN enabled
When BPF_TRAMP_F_CALL_ORIG is enabled, the address of a bpf_tramp_image struct on the stack is passed during the size calculation pass and an address on the heap is passed during code generation. This may cause a heap buffer overflow if the heap address is tagged because emit_a64_mov_i64() will emit longer code than it did during the size calculation pass. The same problem could occur without tag-based KASAN if one of the 16-bit words of the stack address happened to be all-ones during the size calculation pass. Fix the problem by assuming the worst case (4 instructions) when calculating the size of the bpf_tramp_image address emission.
{
"affected": [],
"aliases": [
"CVE-2024-50203"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-08T06:15:16Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, arm64: Fix address emission with tag-based KASAN enabled\n\nWhen BPF_TRAMP_F_CALL_ORIG is enabled, the address of a bpf_tramp_image\nstruct on the stack is passed during the size calculation pass and\nan address on the heap is passed during code generation. This may\ncause a heap buffer overflow if the heap address is tagged because\nemit_a64_mov_i64() will emit longer code than it did during the size\ncalculation pass. The same problem could occur without tag-based\nKASAN if one of the 16-bit words of the stack address happened to\nbe all-ones during the size calculation pass. Fix the problem by\nassuming the worst case (4 instructions) when calculating the size\nof the bpf_tramp_image address emission.",
"id": "GHSA-w83r-gj25-6vrc",
"modified": "2025-05-22T15:34:45Z",
"published": "2024-11-08T06:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50203"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7db1a2121f3c7903b8e397392beec563c3d00950"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9e80f366ebfdfafc685fe83a84c34f7ef01cbe88"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a552e2ef5fd1a6c78267cd4ec5a9b49aa11bbb1c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f521c2a0c0c4585f36d912bf62c852b88682c4f2"
}
],
"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-W84C-442R-CWR7
Vulnerability from github – Published: 2026-07-01 18:31 – Updated: 2026-07-01 18:31NVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.
{
"affected": [],
"aliases": [
"CVE-2025-23351"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-01T16:16:29Z",
"severity": "CRITICAL"
},
"details": "NVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.",
"id": "GHSA-w84c-442r-cwr7",
"modified": "2026-07-01T18:31:47Z",
"published": "2026-07-01T18:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23351"
},
{
"type": "WEB",
"url": "https://github.com/NVIDIA/product-security/tree/main/2026/5699"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23351"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W853-V86G-GV7J
Vulnerability from github – Published: 2026-06-09 18:31 – Updated: 2026-06-10 09:31Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap buffer overflow.
Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour.
In ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination size for Unicode output is computed in a signed int: by left shift of the input character count for BMPSTRING (UTF-16) and UNIVERSALSTRING (UTF-32), and by summing per-character byte counts for UTF8STRING. The calculation overflows when the input reaches around 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30 characters) the size wraps to zero, OPENSSL_malloc(1) is called, and the subsequent character copy writes several gigabytes past the one-byte allocation.
X.509 certificate processing routes through ASN1_STRING_set_by_NID(), whose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID size limits cap the input length; no network protocol or certificate-handling path in OpenSSL exercises the overflow. Triggering the bug requires an application that calls ASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers a custom string type via ASN1_STRING_TABLE_add(), with attacker-controlled input on the order of half a gigabyte or more. For these reasons this issue was assigned Low severity.
The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.
{
"affected": [],
"aliases": [
"CVE-2026-7383"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:50Z",
"severity": "HIGH"
},
"details": "Issue summary: A signed integer overflow when sizing the destination\nbuffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap\nbuffer overflow.\n\nImpact summary: A heap buffer overflow may lead to a crash or possibly\nattacker controlled code execution or other undefined behaviour.\n\nIn ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination\nsize for Unicode output is computed in a signed int: by left shift\nof the input character count for BMPSTRING (UTF-16) and\nUNIVERSALSTRING (UTF-32), and by summing per-character byte counts\nfor UTF8STRING. The calculation overflows when the input reaches\naround 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30\ncharacters) the size wraps to zero, OPENSSL_malloc(1) is called, and\nthe subsequent character copy writes several gigabytes past the\none-byte allocation.\n\nX.509 certificate processing routes through ASN1_STRING_set_by_NID(),\nwhose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID\nsize limits cap the input length; no network protocol or\ncertificate-handling path in OpenSSL exercises the overflow.\nTriggering the bug requires an application that calls\nASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers\na custom string type via ASN1_STRING_TABLE_add(), with\nattacker-controlled input on the order of half a gigabyte or more.\nFor these reasons this issue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as the affected code is outside the OpenSSL FIPS module\nboundary.",
"id": "GHSA-w853-v86g-gv7j",
"modified": "2026-06-10T09:31:57Z",
"published": "2026-06-09T18:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7383"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/4f8d2bddaa2c8e06f9c33390ee1717059a6e4be6"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/80c15faaf78042bbb8654a0e234c50c381732f74"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/bd17511070fb39a67bfa19682affb765e706a974"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/c332adaced43bcbb85f97410597e951c11ec3083"
},
{
"type": "WEB",
"url": "https://github.com/openssl/openssl/commit/d32350ae8ef7426718f5aa9e383d4b51398ee255"
},
{
"type": "WEB",
"url": "https://github.com/openssl/security/commit/4f8d2bddaa2c8e06f9c33390ee1717059a6e4be6"
},
{
"type": "WEB",
"url": "https://github.com/openssl/security/commit/80c15faaf78042bbb8654a0e234c50c381732f74"
},
{
"type": "WEB",
"url": "https://github.com/openssl/security/commit/bd17511070fb39a67bfa19682affb765e706a974"
},
{
"type": "WEB",
"url": "https://github.com/openssl/security/commit/c332adaced43bcbb85f97410597e951c11ec3083"
},
{
"type": "WEB",
"url": "https://github.com/openssl/security/commit/d32350ae8ef7426718f5aa9e383d4b51398ee255"
},
{
"type": "WEB",
"url": "https://openssl-library.org/news/secadv/20260609.txt"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W85V-Q239-VPX6
Vulnerability from github – Published: 2023-03-28 21:30 – Updated: 2023-04-03 21:32This vulnerability allows remote attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw 10.02 printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the SLP protocol. 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-15845.
{
"affected": [],
"aliases": [
"CVE-2022-24673"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-28T19:15:00Z",
"severity": "CRITICAL"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw 10.02 printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the SLP protocol. 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-15845.",
"id": "GHSA-w85v-q239-vpx6",
"modified": "2023-04-03T21:32:47Z",
"published": "2023-03-28T21:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24673"
},
{
"type": "WEB",
"url": "https://www.usa.canon.com/support/canon-product-advisories/canon-laser-printer-inkjet-printer-and-small-office-multifunctional-printer-measure-against-buffer-overflow"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-515"
}
],
"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-W873-JF59-8229
Vulnerability from github – Published: 2022-05-24 19:10 – Updated: 2022-05-24 19:10Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).
{
"affected": [],
"aliases": [
"CVE-2021-38592"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-12T02:15:00Z",
"severity": "HIGH"
},
"details": "Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).",
"id": "GHSA-w873-jf59-8229",
"modified": "2022-05-24T19:10:59Z",
"published": "2022-05-24T19:10:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38592"
},
{
"type": "WEB",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33554"
},
{
"type": "WEB",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-676.yaml"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-W883-JJ58-RV96
Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-12-24 18:30In the Linux kernel, the following vulnerability has been resolved:
HID: betop: fix slab-out-of-bounds Write in betop_probe
Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver. The problem is the driver assumes the device must have an input report but some malicious devices violate this assumption.
So this patch checks hid_device's input is non empty before it's been used.
{
"affected": [],
"aliases": [
"CVE-2021-47404"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T15:15:25Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: betop: fix slab-out-of-bounds Write in betop_probe\n\nSyzbot reported slab-out-of-bounds Write bug in hid-betopff driver.\nThe problem is the driver assumes the device must have an input report but\nsome malicious devices violate this assumption.\n\nSo this patch checks hid_device\u0027s input is non empty before it\u0027s been used.",
"id": "GHSA-w883-jj58-rv96",
"modified": "2024-12-24T18:30:48Z",
"published": "2024-05-21T15:31:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47404"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1c83c38dec83d57bc18d0c01d82c413d3b34ccb9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1e4ce418b1cb1a810256b5fb3fd33d22d1325993"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6fc4476dda58f6c00097c7ddec3b772513f57525"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/708107b80aa616976d1c5fa60ac0c1390749db5e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a4faa7153b87fbcfe4be15f4278676f79ca6e019"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bb8b72374db69afa25a5b65cf1c092860c6fe914"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dedfc35a2de2bae9fa3da8210a05bfd515f83fee"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fe9bb925e7096509711660d39c0493a1546e9550"
}
],
"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-W885-C9WQ-PGV7
Vulnerability from github – Published: 2022-03-12 00:00 – Updated: 2022-03-22 00:01Adobe After Effects versions 22.2 (and earlier) and 18.4.4 (and earlier) are affected by a Stack-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2022-24094"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-11T18:15:00Z",
"severity": "HIGH"
},
"details": "Adobe After Effects versions 22.2 (and earlier) and 18.4.4 (and earlier) are affected by a Stack-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-w885-c9wq-pgv7",
"modified": "2022-03-22T00:01:00Z",
"published": "2022-03-12T00:00:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24094"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/after_effects/apsb22-17.html"
}
],
"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-W88G-W5GH-JH5P
Vulnerability from github – Published: 2022-09-07 00:01 – Updated: 2022-09-10 00:00In aie, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07116037; Issue ID: ALPS07116037.
{
"affected": [],
"aliases": [
"CVE-2022-26470"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-06T18:15:00Z",
"severity": "MODERATE"
},
"details": "In aie, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07116037; Issue ID: ALPS07116037.",
"id": "GHSA-w88g-w5gh-jh5p",
"modified": "2022-09-10T00:00:35Z",
"published": "2022-09-07T00:01:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26470"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/September-2022"
}
],
"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-W88V-5854-FQ6F
Vulnerability from github – Published: 2022-05-24 16:54 – Updated: 2022-05-24 16:54Adobe Acrobat and Reader versions, 2019.012.20035 and earlier, 2019.012.20035 and earlier, 2017.011.30142 and earlier, 2017.011.30143 and earlier, 2017.011.30142 and earlier, 2015.006.30497 and earlier, and 2015.006.30498 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2019-8027"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-08-20T20:15:00Z",
"severity": "MODERATE"
},
"details": "Adobe Acrobat and Reader versions, 2019.012.20035 and earlier, 2019.012.20035 and earlier, 2017.011.30142 and earlier, 2017.011.30143 and earlier, 2017.011.30142 and earlier, 2015.006.30497 and earlier, and 2015.006.30498 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution.",
"id": "GHSA-w88v-5854-fq6f",
"modified": "2022-05-24T16:54:13Z",
"published": "2022-05-24T16:54:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8027"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb19-41.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-W894-7WF4-7W3J
Vulnerability from github – Published: 2022-05-14 02:22 – Updated: 2023-01-25 06:31Adobe Flash Player before 18.0.0.366 and 19.x through 22.x before 22.0.0.209 on Windows and OS X and before 11.2.202.632 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4172, CVE-2016-4175, CVE-2016-4179, CVE-2016-4180, CVE-2016-4181, CVE-2016-4182, CVE-2016-4183, CVE-2016-4184, CVE-2016-4185, CVE-2016-4186, CVE-2016-4187, CVE-2016-4189, CVE-2016-4190, CVE-2016-4217, CVE-2016-4218, CVE-2016-4219, CVE-2016-4220, CVE-2016-4221, CVE-2016-4233, CVE-2016-4234, CVE-2016-4235, CVE-2016-4236, CVE-2016-4237, CVE-2016-4238, CVE-2016-4239, CVE-2016-4240, CVE-2016-4241, CVE-2016-4242, CVE-2016-4243, CVE-2016-4244, CVE-2016-4245, and CVE-2016-4246.
{
"affected": [],
"aliases": [
"CVE-2016-4188"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-07-13T01:59:00Z",
"severity": "CRITICAL"
},
"details": "Adobe Flash Player before 18.0.0.366 and 19.x through 22.x before 22.0.0.209 on Windows and OS X and before 11.2.202.632 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4172, CVE-2016-4175, CVE-2016-4179, CVE-2016-4180, CVE-2016-4181, CVE-2016-4182, CVE-2016-4183, CVE-2016-4184, CVE-2016-4185, CVE-2016-4186, CVE-2016-4187, CVE-2016-4189, CVE-2016-4190, CVE-2016-4217, CVE-2016-4218, CVE-2016-4219, CVE-2016-4220, CVE-2016-4221, CVE-2016-4233, CVE-2016-4234, CVE-2016-4235, CVE-2016-4236, CVE-2016-4237, CVE-2016-4238, CVE-2016-4239, CVE-2016-4240, CVE-2016-4241, CVE-2016-4242, CVE-2016-4243, CVE-2016-4244, CVE-2016-4245, and CVE-2016-4246.",
"id": "GHSA-w894-7wf4-7w3j",
"modified": "2023-01-25T06:31:07Z",
"published": "2022-05-14T02:22:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4188"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2016:1423"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-093"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/flash-player/apsb16-25.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00016.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00017.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/91725"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1036280"
}
],
"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"
}
]
}
Mitigation MIT-3
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
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
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
- 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
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
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
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.