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.
15239 vulnerabilities reference this CWE, most recent first.
GHSA-VV44-RH9Q-4CC8
Vulnerability from github – Published: 2024-08-15 18:31 – Updated: 2024-08-15 21:31
VLAI
Details
Tenda FH1206 v02.03.01.35 was discovered to contain a stack overflow via the page parameter in the fromwebExcptypemanFilter function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-42974"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-15T17:15:20Z",
"severity": "MODERATE"
},
"details": "Tenda FH1206 v02.03.01.35 was discovered to contain a stack overflow via the page parameter in the fromwebExcptypemanFilter function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.",
"id": "GHSA-vv44-rh9q-4cc8",
"modified": "2024-08-15T21:31:19Z",
"published": "2024-08-15T18:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42974"
},
{
"type": "WEB",
"url": "https://github.com/TTTJJJWWW/AHU-IoT-vulnerable/blob/main/Tenda/FH1206/fromwebExcptypemanFilter.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VV56-76V6-H4R6
Vulnerability from github – Published: 2024-06-12 09:30 – Updated: 2024-06-12 09:30
VLAI
Details
Dell Client BIOS contains an Out-of-bounds Write vulnerability. A local authenticated malicious user with admin privileges could potentially exploit this vulnerability, leading to platform denial of service.
Severity
4.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-28970"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-12T07:15:51Z",
"severity": "MODERATE"
},
"details": "Dell Client BIOS contains an Out-of-bounds Write vulnerability. A local authenticated malicious user with admin privileges could potentially exploit this vulnerability, leading to platform denial of service.",
"id": "GHSA-vv56-76v6-h4r6",
"modified": "2024-06-12T09:30:47Z",
"published": "2024-06-12T09:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28970"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-us/000225476/dsa-2024-168"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VV68-XGJ6-26CC
Vulnerability from github – Published: 2022-05-14 02:22 – Updated: 2022-05-14 02:22
VLAI
Details
Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier, as used in the Adobe Flash libraries in Microsoft Internet Explorer 10 and 11 and Microsoft Edge, has unknown impact and attack vectors, a different vulnerability than other CVEs listed in MS16-083.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2016-4166"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-06-16T14:59:00Z",
"severity": "CRITICAL"
},
"details": "Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier, as used in the Adobe Flash libraries in Microsoft Internet Explorer 10 and 11 and Microsoft Edge, has unknown impact and attack vectors, a different vulnerability than other CVEs listed in MS16-083.",
"id": "GHSA-vv68-xgj6-26cc",
"modified": "2022-05-14T02:22:52Z",
"published": "2022-05-14T02:22:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4166"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2016:1238"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-083"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/flash-player/apsb16-18.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00031.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00035.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00038.html"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1036117"
}
],
"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-VV6H-2FW3-XM26
Vulnerability from github – Published: 2022-04-30 18:18 – Updated: 2024-02-02 03:30
VLAI
Details
Sudo before 1.6.6 contains an off-by-one error that can result in a heap-based buffer overflow that may allow local users to gain root privileges via special characters in the -p (prompt) argument, which are not properly expanded.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2002-0184"
],
"database_specific": {
"cwe_ids": [
"CWE-131",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2002-05-16T04:00:00Z",
"severity": "HIGH"
},
"details": "Sudo before 1.6.6 contains an off-by-one error that can result in a heap-based buffer overflow that may allow local users to gain root privileges via special characters in the -p (prompt) argument, which are not properly expanded.",
"id": "GHSA-vv6h-2fw3-xm26",
"modified": "2024-02-02T03:30:30Z",
"published": "2022-04-30T18:18:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2002-0184"
},
{
"type": "WEB",
"url": "http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000475"
},
{
"type": "WEB",
"url": "http://marc.info/?l=bugtraq\u0026m=101974610509912\u0026w=2"
},
{
"type": "WEB",
"url": "http://marc.info/?l=bugtraq\u0026m=101975443619600\u0026w=2"
},
{
"type": "WEB",
"url": "http://marc.info/?l=bugtraq\u0026m=101979472822196\u0026w=2"
},
{
"type": "WEB",
"url": "http://marc.info/?l=bugtraq\u0026m=102010164413135\u0026w=2"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2002/dsa-128"
},
{
"type": "WEB",
"url": "http://www.iss.net/security_center/static/8936.php"
},
{
"type": "WEB",
"url": "http://www.kb.cert.org/vuls/id/820083"
},
{
"type": "WEB",
"url": "http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-028.php3"
},
{
"type": "WEB",
"url": "http://www.linuxsecurity.com/advisories/other_advisory-2040.html"
},
{
"type": "WEB",
"url": "http://www.novell.com/linux/security/advisories/2002_014_sudo_txt.html"
},
{
"type": "WEB",
"url": "http://www.redhat.com/support/errata/RHSA-2002-071.html"
},
{
"type": "WEB",
"url": "http://www.redhat.com/support/errata/RHSA-2002-072.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/4593"
}
],
"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-VV6X-MMFX-2X2G
Vulnerability from github – Published: 2024-11-22 21:32 – Updated: 2024-11-22 21:32
VLAI
Details
IrfanView DXF File Parsing Memory Corruption Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. 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 DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24898.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-11573"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-22T21:15:16Z",
"severity": "HIGH"
},
"details": "IrfanView DXF File Parsing Memory Corruption Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24898.",
"id": "GHSA-vv6x-mmfx-2x2g",
"modified": "2024-11-22T21:32:18Z",
"published": "2024-11-22T21:32:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-11573"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1565"
}
],
"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-VV73-F455-9CRG
Vulnerability from github – Published: 2021-12-15 00:01 – Updated: 2021-12-15 00:01
VLAI
Details
A vulnerability has been identified in JT Utilities (All versions < V13.1.1.0), JTTK (All versions < V11.1.1.0). JTTK library in affected products is vulnerable to stack based buffer overflow while parsing specially crafted JT files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-14903)
{
"affected": [],
"aliases": [
"CVE-2021-44435"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-14T12:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in JT Utilities (All versions \u003c V13.1.1.0), JTTK (All versions \u003c V11.1.1.0). JTTK library in affected products is vulnerable to stack based buffer overflow while parsing specially crafted JT files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-14903)",
"id": "GHSA-vv73-f455-9crg",
"modified": "2021-12-15T00:01:13Z",
"published": "2021-12-15T00:01:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44435"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-802578.pdf"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-VV7G-383W-69HC
Vulnerability from github – Published: 2023-10-14 21:30 – Updated: 2024-01-11 21:31
VLAI
Details
An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fill_kobj_path out-of-bounds write.
Severity
6.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-45863"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-14T21:15:45Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fill_kobj_path out-of-bounds write.",
"id": "GHSA-vv7g-383w-69hc",
"modified": "2024-01-11T21:31:15Z",
"published": "2023-10-14T21:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45863"
},
{
"type": "WEB",
"url": "https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3bb2a01caa813d3a1845d378bbe4169ef280d394"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VV86-F2P5-M8XV
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2024-05-03 03:31
VLAI
Details
D-Link DAP-1325 get_value_from_app Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1325 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of XML data provided to the HNAP1 SOAP endpoint. 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-18823.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-44404"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:15:53Z",
"severity": "HIGH"
},
"details": "D-Link DAP-1325 get_value_from_app Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1325 routers. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of XML data provided to the HNAP1 SOAP endpoint. 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-18823.",
"id": "GHSA-vv86-f2p5-m8xv",
"modified": "2024-05-03T03:31:04Z",
"published": "2024-05-03T03:31:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-44404"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-1502"
}
],
"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-VV88-7M9V-J3PP
Vulnerability from github – Published: 2022-05-13 01:23 – Updated: 2022-05-13 01:23
VLAI
Details
Multiple integer signedness errors in the TIPC implementation in the Linux kernel before 2.6.36.2 allow local users to gain privileges via a crafted sendmsg call that triggers a heap-based buffer overflow, related to the tipc_msg_build function in net/tipc/msg.c and the verify_iovec function in net/core/iovec.c.
{
"affected": [],
"aliases": [
"CVE-2010-3859"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2010-12-29T18:00:00Z",
"severity": "MODERATE"
},
"details": "Multiple integer signedness errors in the TIPC implementation in the Linux kernel before 2.6.36.2 allow local users to gain privileges via a crafted sendmsg call that triggers a heap-based buffer overflow, related to the tipc_msg_build function in net/tipc/msg.c and the verify_iovec function in net/core/iovec.c.",
"id": "GHSA-vv88-7m9v-j3pp",
"modified": "2022-05-13T01:23:34Z",
"published": "2022-05-13T01:23:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2010-3859"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=645867"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=253eacc070b114c2ec1f81b067d2fed7305467b0"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8acfe468b0384e834a303f08ebc4953d72fb690a"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=253eacc070b114c2ec1f81b067d2fed7305467b0"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8acfe468b0384e834a303f08ebc4953d72fb690a"
},
{
"type": "WEB",
"url": "http://marc.info/?l=linux-netdev\u0026m=128770476511716\u0026w=2"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/42789"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/42963"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/46397"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2010/dsa-2126"
},
{
"type": "WEB",
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2"
},
{
"type": "WEB",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:029"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2010/10/22/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2010/10/22/5"
},
{
"type": "WEB",
"url": "http://www.redhat.com/support/errata/RHSA-2011-0004.html"
},
{
"type": "WEB",
"url": "http://www.redhat.com/support/errata/RHSA-2011-0162.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/520102/100/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/44354"
},
{
"type": "WEB",
"url": "http://www.spinics.net/lists/netdev/msg145247.html"
},
{
"type": "WEB",
"url": "http://www.spinics.net/lists/netdev/msg145248.html"
},
{
"type": "WEB",
"url": "http://www.spinics.net/lists/netdev/msg145262.html"
},
{
"type": "WEB",
"url": "http://www.spinics.net/lists/netdev/msg145263.html"
},
{
"type": "WEB",
"url": "http://www.spinics.net/lists/netdev/msg145264.html"
},
{
"type": "WEB",
"url": "http://www.spinics.net/lists/netdev/msg145265.html"
},
{
"type": "WEB",
"url": "http://www.spinics.net/lists/netdev/msg145352.html"
},
{
"type": "WEB",
"url": "http://www.vmware.com/security/advisories/VMSA-2011-0012.html"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2011/0024"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2011/0168"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-VV93-J256-HPWH
Vulnerability from github – Published: 2024-02-06 03:33 – Updated: 2024-02-13 21:30
VLAI
Details
Buffer overflow in the Address Book username process in authentication of Mobile Device Function of Office Multifunction Printers and Laser Printers() which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.: Satera LBP670C Series/Satera MF750C Series firmware v03.07 and earlier sold in Japan. Color imageCLASS LBP674C/Color imageCLASS X LBP1333C/Color imageCLASS MF750C Series/Color imageCLASS X MF1333C Series firmware v03.07 and earlier sold in US. i-SENSYS LBP673Cdw/C1333P/i-SENSYS MF750C Series/C1333i Series firmware v03.07 and earlier sold in Europe.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2023-6232"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-06T01:15:08Z",
"severity": "CRITICAL"
},
"details": "Buffer overflow in the Address Book username process in authentication of Mobile Device Function of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.*: Satera LBP670C Series/Satera MF750C Series firmware v03.07 and earlier sold in Japan. Color imageCLASS LBP674C/Color imageCLASS X LBP1333C/Color imageCLASS MF750C Series/Color imageCLASS X MF1333C Series firmware v03.07 and earlier sold in US. i-SENSYS LBP673Cdw/C1333P/i-SENSYS MF750C Series/C1333i Series firmware v03.07 and earlier sold in Europe.\n\n",
"id": "GHSA-vv93-j256-hpwh",
"modified": "2024-02-13T21:30:29Z",
"published": "2024-02-06T03:33:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6232"
},
{
"type": "WEB",
"url": "https://canon.jp/support/support-info/240205vulnerability-response"
},
{
"type": "WEB",
"url": "https://psirt.canon/advisory-information/cp2024-001"
},
{
"type": "WEB",
"url": "https://www.canon-europe.com/support/product-security-latest-news"
},
{
"type": "WEB",
"url": "https://www.usa.canon.com/support/canon-product-advisories/Service-Notice-Regarding-Vulnerability-Measure-Against-Buffer-Overflow-for-Laser-Printers-and-Small-Office-Multifunctional-Printers"
}
],
"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.