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.
15113 vulnerabilities reference this CWE, most recent first.
GHSA-WWVC-98FQ-C42M
Vulnerability from github – Published: 2022-05-24 16:50 – Updated: 2024-04-04 01:18
VLAI
Details
Gnome Pango 1.42 and later is affected by: Buffer Overflow. The impact is: The heap based buffer overflow can be used to get code execution. The component is: function name: pango_log2vis_get_embedding_levels, assignment of nchars and the loop condition. The attack vector is: Bug can be used when application pass invalid utf-8 strings to functions like pango_itemize.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2019-1010238"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-19T17:15:00Z",
"severity": "CRITICAL"
},
"details": "Gnome Pango 1.42 and later is affected by: Buffer Overflow. The impact is: The heap based buffer overflow can be used to get code execution. The component is: function name: pango_log2vis_get_embedding_levels, assignment of nchars and the loop condition. The attack vector is: Bug can be used when application pass invalid utf-8 strings to functions like pango_itemize.",
"id": "GHSA-wwvc-98fq-c42m",
"modified": "2024-04-04T01:18:58Z",
"published": "2022-05-24T16:50:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1010238"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4496"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4081-1"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201909-03"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Aug/14"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VFFF4FY7SCAYT3EKTYPGRN6BVKZTH7Y7"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D6HWAHXJ2ZXINYMANHPFDDCJFWUQ57M4"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VFFF4FY7SCAYT3EKTYPGRN6BVKZTH7Y7"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D6HWAHXJ2ZXINYMANHPFDDCJFWUQ57M4"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/pango/blob/master/pango/pango-bidi-type.c"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/pango/-/issues/342"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/pango/-/commits/main/pango/pango-bidi-type.c"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3234"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2594"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2582"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2571"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHBA-2019:2824"
}
],
"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-WWVF-M6J5-65JW
Vulnerability from github – Published: 2022-05-24 22:00 – Updated: 2022-10-14 12:00
VLAI
Details
In libexif, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege in the media content provider with no additional execution privileges needed. User interaction is needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-112537774
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2019-9278"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-27T19:15:00Z",
"severity": "MODERATE"
},
"details": "In libexif, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege in the media content provider with no additional execution privileges needed. User interaction is needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-112537774",
"id": "GHSA-wwvf-m6j5-65jw",
"modified": "2022-10-14T12:00:21Z",
"published": "2022-05-24T22:00:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9278"
},
{
"type": "WEB",
"url": "https://github.com/libexif/libexif/issues/26"
},
{
"type": "WEB",
"url": "https://github.com/libexif/libexif/commit/75aa73267fdb1e0ebfbc00369e7312bac43d0566"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/02/msg00007.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO2VTHD7OLPJDCJBHKUQTBAHZOBBCF6X"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VA5BPQLOFXIZOOJHBYDU635Z5KLUMTDD"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2020/Feb/9"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-05"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/android-10"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4277-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4618"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00000.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2019/10/25/17"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2019/10/27/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2019/11/07/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WWWG-GG6J-89JF
Vulnerability from github – Published: 2022-05-14 01:57 – Updated: 2022-05-14 01:57
VLAI
Details
In sdp_copy_raw_data of sdp_discovery.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote code execution over bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9.0 Android ID: A-110216176
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-9504"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-02T19:29:00Z",
"severity": "HIGH"
},
"details": "In sdp_copy_raw_data of sdp_discovery.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote code execution over bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9.0 Android ID: A-110216176",
"id": "GHSA-wwwg-gg6j-89jf",
"modified": "2022-05-14T01:57:56Z",
"published": "2022-05-14T01:57:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-9504"
},
{
"type": "WEB",
"url": "https://android.googlesource.com/platform/system/bt/+/11fb7aa03437eccac98d90ca2de1730a02a515e2"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2018-10-01"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2018-10-01,"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105482"
}
],
"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-WWXC-5H4G-Q9J8
Vulnerability from github – Published: 2022-05-24 16:54 – Updated: 2022-06-28 00:00
VLAI
Details
An exploitable command execution vulnerability exists in the print-tlv command of Weave tool. A specially crafted weave TLV can trigger a stack-based buffer overflow, resulting in code execution. An attacker can trigger this vulnerability by convincing the user to open a specially crafted Weave command.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2019-5038"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-08-20T21:15:00Z",
"severity": "HIGH"
},
"details": "An exploitable command execution vulnerability exists in the print-tlv command of Weave tool. A specially crafted weave TLV can trigger a stack-based buffer overflow, resulting in code execution. An attacker can trigger this vulnerability by convincing the user to open a specially crafted Weave command.",
"id": "GHSA-wwxc-5h4g-q9j8",
"modified": "2022-06-28T00:00:52Z",
"published": "2022-05-24T16:54:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5038"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0801"
}
],
"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-WX2F-7P5W-VHHV
Vulnerability from github – Published: 2022-05-13 01:20 – Updated: 2022-05-13 01:20
VLAI
Details
Inline metadata in GarbageCollection in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-6094"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-12-04T17:29:00Z",
"severity": "HIGH"
},
"details": "Inline metadata in GarbageCollection in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-wx2f-7p5w-vhhv",
"modified": "2022-05-13T01:20:25Z",
"published": "2022-05-13T01:20:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6094"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1195"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2018/04/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/633030"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201804-22"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4182"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103917"
}
],
"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-WX4F-9WF4-26P4
Vulnerability from github – Published: 2024-05-14 18:30 – Updated: 2026-01-05 18:30
VLAI
Details
TinyWeb 1.94 and below allows unauthenticated remote attackers to cause a denial of service (Buffer Overflow) when sending excessively large elements in the request line.
Severity
8.6 (High)
{
"affected": [],
"aliases": [
"CVE-2024-34199"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-14T15:38:32Z",
"severity": "HIGH"
},
"details": "TinyWeb 1.94 and below allows unauthenticated remote attackers to cause a denial of service (Buffer Overflow) when sending excessively large elements in the request line.",
"id": "GHSA-wx4f-9wf4-26p4",
"modified": "2026-01-05T18:30:20Z",
"published": "2024-05-14T18:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34199"
},
{
"type": "WEB",
"url": "https://github.com/maximmasiutin/TinyWeb/commit/2584082"
},
{
"type": "WEB",
"url": "https://github.com/maximmasiutin/TinyWeb/commit/d49c3da"
},
{
"type": "WEB",
"url": "https://github.com/DMCERTCE/PoC_Tiny_Overflow"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WX53-3C9R-58R2
Vulnerability from github – Published: 2023-07-25 00:30 – Updated: 2024-04-04 06:20
VLAI
Details
A stack-based buffer overflow in the Command Centre Server allows an attacker to cause a denial of service attack via assigning cardholders to an Access Group.
This issue affects Command Centre: vEL8.80 prior to vEL8.80.1192 (MR2)
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-22363"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-25T00:15:09Z",
"severity": "HIGH"
},
"details": "\nA stack-based buffer overflow in the Command Centre Server allows an attacker to cause a denial of service attack via assigning cardholders to an Access Group.\n\nThis issue affects Command Centre: vEL8.80 prior to vEL8.80.1192 (MR2)\n\n",
"id": "GHSA-wx53-3c9r-58r2",
"modified": "2024-04-04T06:20:32Z",
"published": "2023-07-25T00:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-22363"
},
{
"type": "WEB",
"url": "https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2023-22363"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WX5H-WRH7-XG39
Vulnerability from github – Published: 2024-01-08 15:30 – Updated: 2024-04-09 21:31
VLAI
Details
Multiple stack-based buffer overflow vulnerabilities exist in the FST LEB128 varint functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the fstReaderVarint64 function.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-35703"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-08T15:15:09Z",
"severity": "HIGH"
},
"details": "Multiple stack-based buffer overflow vulnerabilities exist in the FST LEB128 varint functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the fstReaderVarint64 function.",
"id": "GHSA-wx5h-wrh7-xg39",
"modified": "2024-04-09T21:31:52Z",
"published": "2024-01-08T15:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35703"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1783"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1783"
}
],
"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-WX63-6373-25HV
Vulnerability from github – Published: 2022-05-07 00:00 – Updated: 2022-05-18 00:00
VLAI
Details
Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow via the wanMTU parameter in the function fromAdvSetMacMtuWan. This vulnerability allows attackers to cause a Denial of Service (DoS).
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2022-28973"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-05-06T14:15:00Z",
"severity": "HIGH"
},
"details": "Tenda AX1806 v1.0.0.1 was discovered to contain a stack overflow via the wanMTU parameter in the function fromAdvSetMacMtuWan. This vulnerability allows attackers to cause a Denial of Service (DoS).",
"id": "GHSA-wx63-6373-25hv",
"modified": "2022-05-18T00:00:49Z",
"published": "2022-05-07T00:00:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-28973"
},
{
"type": "WEB",
"url": "https://github.com/d1tto/IoT-vuln/blob/main/Tenda/AX1806/fromAdvSetMacMtuWan/readme.md"
}
],
"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-WX6P-35HF-VHHJ
Vulnerability from github – Published: 2022-05-02 03:29 – Updated: 2025-10-22 03:30
VLAI
Details
Unspecified vulnerability in Adobe Reader and Acrobat 9.x through 9.1.2, and Adobe Flash Player 9.x through 9.0.159.0 and 10.x through 10.0.22.87, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via (1) a crafted Flash application in a .pdf file or (2) a crafted .swf file, related to authplay.dll, as exploited in the wild in July 2009.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2009-1862"
],
"database_specific": {
"cwe_ids": [
"CWE-787",
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-07-23T20:30:00Z",
"severity": "HIGH"
},
"details": "Unspecified vulnerability in Adobe Reader and Acrobat 9.x through 9.1.2, and Adobe Flash Player 9.x through 9.0.159.0 and 10.x through 10.0.22.87, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via (1) a crafted Flash application in a .pdf file or (2) a crafted .swf file, related to authplay.dll, as exploited in the wild in July 2009.",
"id": "GHSA-wx6p-35hf-vhhj",
"modified": "2025-10-22T03:30:27Z",
"published": "2022-05-02T03:29:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-1862"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-1862"
},
{
"type": "WEB",
"url": "http://blogs.adobe.com/psirt/2009/07/potential_adobe_reader_and_fla.html"
},
{
"type": "WEB",
"url": "http://bugs.adobe.com/jira/browse/FP-1265"
},
{
"type": "WEB",
"url": "http://isc.sans.org/diary.html?storyid=6847"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2009/Sep/msg00003.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2009/Sep/msg00004.html"
},
{
"type": "WEB",
"url": "http://news.cnet.com/8301-27080_3-10293389-245.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/36193"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/36374"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/36701"
},
{
"type": "WEB",
"url": "http://security.gentoo.org/glsa/glsa-200908-04.xml"
},
{
"type": "WEB",
"url": "http://sunsolve.sun.com/search/document.do?assetkey=1-66-266108-1"
},
{
"type": "WEB",
"url": "http://support.apple.com/kb/HT3864"
},
{
"type": "WEB",
"url": "http://support.apple.com/kb/HT3865"
},
{
"type": "WEB",
"url": "http://www.adobe.com/support/security/advisories/apsa09-03.html"
},
{
"type": "WEB",
"url": "http://www.adobe.com/support/security/bulletins/apsb09-10.html"
},
{
"type": "WEB",
"url": "http://www.adobe.com/support/security/bulletins/apsb09-13.html"
},
{
"type": "WEB",
"url": "http://www.kb.cert.org/vuls/id/259425"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/35759"
},
{
"type": "WEB",
"url": "http://www.symantec.com/business/security_response/writeup.jsp?docid=2009-072209-2512-99"
},
{
"type": "WEB",
"url": "http://www.symantec.com/connect/blogs/next-generation-flash-vulnerability"
}
],
"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"
}
]
}
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.