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.
15530 vulnerabilities reference this CWE, most recent first.
GHSA-HPRW-5FJ5-P822
Vulnerability from github – Published: 2022-05-24 17:25 – Updated: 2024-01-04 03:30
VLAI
Details
A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory, aka 'Media Foundation Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-1477, CVE-2020-1478, CVE-2020-1492, CVE-2020-1525, CVE-2020-1554.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2020-1379"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-08-17T19:15:00Z",
"severity": "MODERATE"
},
"details": "A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory, aka \u0027Media Foundation Memory Corruption Vulnerability\u0027. This CVE ID is unique from CVE-2020-1477, CVE-2020-1478, CVE-2020-1492, CVE-2020-1525, CVE-2020-1554.",
"id": "GHSA-hprw-5fj5-p822",
"modified": "2024-01-04T03:30:31Z",
"published": "2022-05-24T17:25:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1379"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1379"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-HPV4-7P9C-MVFR
Vulnerability from github – Published: 2021-08-25 14:43 – Updated: 2024-11-13 17:26
VLAI
Summary
Heap buffer overflow in `FractionalAvgPoolGrad`
Details
Impact
The implementation for tf.raw_ops.FractionalAvgPoolGrad can be tricked into accessing data outside of bounds of heap allocated buffers:
import tensorflow as tf
tf.raw_ops.FractionalAvgPoolGrad(
orig_input_tensor_shape=[0,1,2,3],
out_backprop = np.array([[[[541],[541]],[[541],[541]]]]),
row_pooling_sequence=[0, 0, 0, 0, 0],
col_pooling_sequence=[-2, 0, 0, 2, 0],
overlapping=True)
The implementation does not validate that the input tensor is non-empty. Thus, code constructs an empty EigenDoubleMatrixMap and then accesses this buffer with indices that are outside of the empty area.
Patches
We have patched the issue in GitHub commit 0f931751fb20f565c4e94aa6df58d54a003cdb30.
The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.
For more information
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
Attribution
This vulnerability has been reported by members of the Aivul Team from Qihoo 360.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.5.0"
},
{
"fixed": "2.5.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.5.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-cpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.5.0"
},
{
"fixed": "2.5.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.5.0"
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.4.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "tensorflow-gpu"
},
"ranges": [
{
"events": [
{
"introduced": "2.5.0"
},
{
"fixed": "2.5.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.5.0"
]
}
],
"aliases": [
"CVE-2021-37651"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2021-08-23T23:20:28Z",
"nvd_published_at": "2021-08-12T21:15:00Z",
"severity": "HIGH"
},
"details": "### Impact\nThe implementation for `tf.raw_ops.FractionalAvgPoolGrad` can be tricked into accessing data outside of bounds of heap allocated buffers:\n\n```python\nimport tensorflow as tf\n\ntf.raw_ops.FractionalAvgPoolGrad(\n orig_input_tensor_shape=[0,1,2,3],\n out_backprop = np.array([[[[541],[541]],[[541],[541]]]]),\n row_pooling_sequence=[0, 0, 0, 0, 0],\n col_pooling_sequence=[-2, 0, 0, 2, 0],\n overlapping=True)\n```\n\nThe [implementation](https://github.com/tensorflow/tensorflow/blob/f24faa153ad31a4b51578f8181d3aaab77a1ddeb/tensorflow/core/kernels/fractional_avg_pool_op.cc#L205) does not validate that the input tensor is non-empty. Thus, code constructs an empty `EigenDoubleMatrixMap` and then accesses this buffer with indices that are outside of the empty area.\n\n### Patches\nWe have patched the issue in GitHub commit [0f931751fb20f565c4e94aa6df58d54a003cdb30](https://github.com/tensorflow/tensorflow/commit/0f931751fb20f565c4e94aa6df58d54a003cdb30).\n\nThe fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.\n\n### Attribution\nThis vulnerability has been reported by members of the Aivul Team from Qihoo 360.",
"id": "GHSA-hpv4-7p9c-mvfr",
"modified": "2024-11-13T17:26:29Z",
"published": "2021-08-25T14:43:21Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hpv4-7p9c-mvfr"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37651"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/0f931751fb20f565c4e94aa6df58d54a003cdb30"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-564.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-762.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-273.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/tensorflow/tensorflow"
}
],
"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:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Heap buffer overflow in `FractionalAvgPoolGrad`"
}
GHSA-HPVX-H4GG-HPC4
Vulnerability from github – Published: 2022-05-13 01:19 – Updated: 2022-05-13 01:19
VLAI
Details
ChopUpSingleUncompressedStrip in tif_dirread.c in LibTIFF 4.0.9 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, as demonstrated by tiff2pdf.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-15209"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-08T04:29:00Z",
"severity": "HIGH"
},
"details": "ChopUpSingleUncompressedStrip in tif_dirread.c in LibTIFF 4.0.9 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, as demonstrated by tiff2pdf.",
"id": "GHSA-hpvx-h4gg-hpc4",
"modified": "2022-05-13T01:19:10Z",
"published": "2022-05-13T01:19:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15209"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4349"
},
{
"type": "WEB",
"url": "http://bugzilla.maptools.org/show_bug.cgi?id=2808"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105092"
}
],
"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"
}
]
}
GHSA-HPW2-XVC7-2786
Vulnerability from github – Published: 2022-05-13 01:28 – Updated: 2022-05-13 01:28
VLAI
Details
Adobe Acrobat and Reader versions 2018.011.20063 and earlier, 2017.011.30102 and earlier, and 2015.006.30452 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-12861"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-12T18:29:00Z",
"severity": "HIGH"
},
"details": "Adobe Acrobat and Reader versions 2018.011.20063 and earlier, 2017.011.30102 and earlier, and 2015.006.30452 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution.",
"id": "GHSA-hpw2-xvc7-2786",
"modified": "2022-05-13T01:28:10Z",
"published": "2022-05-13T01:28:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12861"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb18-30.html"
},
{
"type": "WEB",
"url": "https://research.checkpoint.com/2018/50-adobe-cves-in-50-days"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105432"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1041809"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HPWG-HQ7C-6QW4
Vulnerability from github – Published: 2022-05-13 01:19 – Updated: 2022-05-13 01:19
VLAI
Details
An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. A very long password to /goform/formLogin could lead to a stack-based buffer overflow and overwrite the return address.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2018-17067"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-15T21:29:00Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. A very long password to /goform/formLogin could lead to a stack-based buffer overflow and overwrite the return address.",
"id": "GHSA-hpwg-hq7c-6qw4",
"modified": "2022-05-13T01:19:22Z",
"published": "2022-05-13T01:19:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17067"
},
{
"type": "WEB",
"url": "https://github.com/PAGalaxyLab/VulInfo/tree/master/D-Link/DIR-816/stack_overflow_0"
}
],
"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-HPX2-673Q-J6RC
Vulnerability from github – Published: 2022-05-24 19:15 – Updated: 2022-11-03 12:00
VLAI
Details
libde265 v1.0.4 contains a heap buffer overflow in the mc_luma function, which can be exploited via a crafted a file.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2020-21595"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-16T22:15:00Z",
"severity": "MODERATE"
},
"details": "libde265 v1.0.4 contains a heap buffer overflow in the mc_luma function, which can be exploited via a crafted a file.",
"id": "GHSA-hpx2-673q-j6rc",
"modified": "2022-11-03T12:00:31Z",
"published": "2022-05-24T19:15:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-21595"
},
{
"type": "WEB",
"url": "https://github.com/strukturag/libde265/issues/239"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5346"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HPXH-43R8-85PH
Vulnerability from github – Published: 2022-05-24 19:08 – Updated: 2022-05-24 19:08
VLAI
Details
Multiple stack-based buffer overflows in WebGate eDVR Manager and Control Center allow remote attackers to execute arbitrary code via unspecified vectors to the (1) TCPDiscover or (2) TCPDiscover2 function in the WESPDiscovery.WESPDiscoveryCtrl.1 control.
{
"affected": [],
"aliases": [
"CVE-2015-2100"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-07-22T18:15:00Z",
"severity": "HIGH"
},
"details": "Multiple stack-based buffer overflows in WebGate eDVR Manager and Control Center allow remote attackers to execute arbitrary code via unspecified vectors to the (1) TCPDiscover or (2) TCPDiscover2 function in the WESPDiscovery.WESPDiscoveryCtrl.1 control.",
"id": "GHSA-hpxh-43r8-85ph",
"modified": "2022-05-24T19:08:57Z",
"published": "2022-05-24T19:08:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-2100"
},
{
"type": "WEB",
"url": "http://www.zerodayinitiative.com/advisories/ZDI-15-057"
},
{
"type": "WEB",
"url": "http://www.zerodayinitiative.com/advisories/ZDI-15-067"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-HPXQ-HFFH-GXV5
Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2022-05-24 17:47
VLAI
Details
An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2021-29998"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-13T17:15:00Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.",
"id": "GHSA-hpxq-hffh-gxv5",
"modified": "2022-05-24T17:47:29Z",
"published": "2022-05-24T17:47:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29998"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-910883.pdf"
},
{
"type": "WEB",
"url": "https://support2.windriver.com/index.php?page=security-notices"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-194-12"
}
],
"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-HQ23-FQ33-H8WH
Vulnerability from github – Published: 2024-08-28 03:31 – Updated: 2024-08-28 03:31
VLAI
Details
A vulnerability was found in Tenda O6 1.0.0.7(2054). It has been rated as critical. This issue affects the function fromSafeSetMacFilter of the file /goform/setMacFilterList. The manipulation of the argument remark/type/time leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
{
"affected": [],
"aliases": [
"CVE-2024-8230"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-28T02:15:03Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in Tenda O6 1.0.0.7(2054). It has been rated as critical. This issue affects the function fromSafeSetMacFilter of the file /goform/setMacFilterList. The manipulation of the argument remark/type/time leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-hq23-fq33-h8wh",
"modified": "2024-08-28T03:31:14Z",
"published": "2024-08-28T03:31:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8230"
},
{
"type": "WEB",
"url": "https://github.com/abcdefg-png/AHU-IoT-vulnerable/blob/main/Tenda/web-bridge/O6V3.0/fromSafeSetMacFilter.md"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.275939"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.275939"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.394031"
},
{
"type": "WEB",
"url": "https://www.tenda.com.cn"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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-HQ23-P823-XP34
Vulnerability from github – Published: 2022-10-07 00:01 – Updated: 2022-10-12 12:00
VLAI
Details
TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain an authenticated stack overflow via the week, sTime, and eTime parameters in the setParentalRules function.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-41524"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-06T19:15:00Z",
"severity": "HIGH"
},
"details": "TOTOLINK NR1800X V9.1.0u.6279_B20210910 was discovered to contain an authenticated stack overflow via the week, sTime, and eTime parameters in the setParentalRules function.",
"id": "GHSA-hq23-p823-xp34",
"modified": "2022-10-12T12:00:17Z",
"published": "2022-10-07T00:01:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41524"
},
{
"type": "WEB",
"url": "https://brief-nymphea-813.notion.site/NR1800X-bof-setParentalRules-0da79b5ce7d44212b275a33b77935a42"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/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.