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.
16203 vulnerabilities reference this CWE, most recent first.
GHSA-M49C-4FX3-RQR9
Vulnerability from github – Published: 2024-11-22 21:32 – Updated: 2024-11-22 21:32IrfanView 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-24702.
{
"affected": [],
"aliases": [
"CVE-2024-11541"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-22T21:15:12Z",
"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-24702.",
"id": "GHSA-m49c-4fx3-rqr9",
"modified": "2024-11-22T21:32:17Z",
"published": "2024-11-22T21:32:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-11541"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1552"
}
],
"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-M4CC-HX9X-R2QR
Vulnerability from github – Published: 2022-05-13 01:06 – Updated: 2022-05-13 01:06Heap-based buffer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC Classic before 2015.006.30060, and Acrobat and Acrobat Reader DC Continuous before 2015.008.20082 on Windows and OS X allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2015-5096 and CVE-2015-5105.
{
"affected": [],
"aliases": [
"CVE-2015-5098"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2015-07-15T14:59:00Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC Classic before 2015.006.30060, and Acrobat and Acrobat Reader DC Continuous before 2015.008.20082 on Windows and OS X allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2015-5096 and CVE-2015-5105.",
"id": "GHSA-m4cc-hx9x-r2qr",
"modified": "2022-05-13T01:06:52Z",
"published": "2022-05-13T01:06:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-5098"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/reader/apsb15-15.html"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1032892"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-M4F8-QW3G-PJ92
Vulnerability from github – Published: 2026-08-13 21:36 – Updated: 2026-08-13 21:36IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a heap buffer overflow.
{
"affected": [],
"aliases": [
"CVE-2026-16871"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-13T20:17:16Z",
"severity": "MODERATE"
},
"details": "IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a heap buffer overflow.",
"id": "GHSA-m4f8-qw3g-pj92",
"modified": "2026-08-13T21:36:06Z",
"published": "2026-08-13T21:36:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16871"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7283573"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-M4FQ-P33H-9J97
Vulnerability from github – Published: 2022-03-18 00:01 – Updated: 2022-03-23 00:00stb_truetype.h v1.26 was discovered to contain a heap-buffer-overflow via the function stbtt__find_table at stb_truetype.h.
{
"affected": [],
"aliases": [
"CVE-2022-25516"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-17T01:15:00Z",
"severity": "HIGH"
},
"details": "stb_truetype.h v1.26 was discovered to contain a heap-buffer-overflow via the function stbtt__find_table at stb_truetype.h.",
"id": "GHSA-m4fq-p33h-9j97",
"modified": "2022-03-23T00:00:31Z",
"published": "2022-03-18T00:01:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25516"
},
{
"type": "WEB",
"url": "https://github.com/nothings/stb/issues/1286"
},
{
"type": "WEB",
"url": "https://github.com/nothings/stb/issues/1287"
}
],
"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-M4G4-RWXC-376V
Vulnerability from github – Published: 2024-11-09 12:30 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix kernel bug due to missing clearing of checked flag
Syzbot reported that in directory operations after nilfs2 detects filesystem corruption and degrades to read-only, __block_write_begin_int(), which is called to prepare block writes, may fail the BUG_ON check for accesses exceeding the folio/page size, triggering a kernel bug.
This was found to be because the "checked" flag of a page/folio was not cleared when it was discarded by nilfs2's own routine, which causes the sanity check of directory entries to be skipped when the directory page/folio is reloaded. So, fix that.
This was necessary when the use of nilfs2's own page discard routine was applied to more than just metadata files.
{
"affected": [],
"aliases": [
"CVE-2024-50230"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-09T11:15:08Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix kernel bug due to missing clearing of checked flag\n\nSyzbot reported that in directory operations after nilfs2 detects\nfilesystem corruption and degrades to read-only,\n__block_write_begin_int(), which is called to prepare block writes, may\nfail the BUG_ON check for accesses exceeding the folio/page size,\ntriggering a kernel bug.\n\nThis was found to be because the \"checked\" flag of a page/folio was not\ncleared when it was discarded by nilfs2\u0027s own routine, which causes the\nsanity check of directory entries to be skipped when the directory\npage/folio is reloaded. So, fix that.\n\nThis was necessary when the use of nilfs2\u0027s own page discard routine was\napplied to more than just metadata files.",
"id": "GHSA-m4g4-rwxc-376v",
"modified": "2025-11-04T00:31:59Z",
"published": "2024-11-09T12:30:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50230"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/41e192ad2779cae0102879612dfe46726e4396aa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/64afad73e4623308d8943645e5631f2c7a2d7971"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/994b2fa13a6c9cf3feca93090a9c337d48e3d60d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aa0cee46c5d3fd9a39575a4c8a4f65f25f095b89"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cd0cdb51b15203fa27d4b714be83b7dfffa0b752"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f05dbebb8ee34882505d53d83af7d18f28a49248"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f2f1fa446676c21edb777e6d2bc4fa8f956fab68"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
}
],
"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-M4G7-W387-QG32
Vulnerability from github – Published: 2023-08-15 18:31 – Updated: 2024-01-10 15:30Buffer Overflow vulnerability infaad2 v.2.10.1 allows a remote attacker to execute arbitrary code and cause a denial of service via the stcoin function in mp4read.c.
{
"affected": [],
"aliases": [
"CVE-2023-38857"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-15T17:15:11Z",
"severity": "MODERATE"
},
"details": "Buffer Overflow vulnerability infaad2 v.2.10.1 allows a remote attacker to execute arbitrary code and cause a denial of service via the stcoin function in mp4read.c.",
"id": "GHSA-m4g7-w387-qg32",
"modified": "2024-01-10T15:30:18Z",
"published": "2023-08-15T18:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38857"
},
{
"type": "WEB",
"url": "https://github.com/knik0/faad2/issues/171"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-13"
}
],
"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-M4J6-9HRJ-PXHQ
Vulnerability from github – Published: 2023-03-07 21:30 – Updated: 2023-03-13 06:30In msdc, 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: ALPS07405223; Issue ID: ALPS07405223.
{
"affected": [],
"aliases": [
"CVE-2023-20626"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-07T21:15:00Z",
"severity": "MODERATE"
},
"details": "In msdc, 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: ALPS07405223; Issue ID: ALPS07405223.",
"id": "GHSA-m4j6-9hrj-pxhq",
"modified": "2023-03-13T06:30:25Z",
"published": "2023-03-07T21:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20626"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/March-2023"
}
],
"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-M4J8-6WJ9-56FG
Vulnerability from github – Published: 2026-08-02 15:30 – Updated: 2026-08-02 15:30FreeRDP before 3.30.0 (<= 3.29.0) contains a heap-based buffer overflow in the Windows clipboard client's CliprdrStream_Read function (client/Windows/wf_cliprdr.c). When an OLE paste consumer (e.g. explorer.exe) calls IStream::Read with a fixed-size buffer of cb bytes, CliprdrStream_Read requests file contents from the RDP server and then copies the response into the caller's buffer using the server-supplied length (req_fsize) instead of cb. A malicious or compromised RDP server can return an oversized CB_FILECONTENTS_RESPONSE, causing an out-of-bounds write of attacker-controlled data into the paste consumer's heap buffer when a user pastes server-offered clipboard file contents.
{
"affected": [],
"aliases": [
"CVE-2026-68579"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-02T13:16:53Z",
"severity": "HIGH"
},
"details": "FreeRDP before 3.30.0 (\u003c= 3.29.0) contains a heap-based buffer overflow in the Windows clipboard client\u0027s CliprdrStream_Read function (client/Windows/wf_cliprdr.c). When an OLE paste consumer (e.g. explorer.exe) calls IStream::Read with a fixed-size buffer of cb bytes, CliprdrStream_Read requests file contents from the RDP server and then copies the response into the caller\u0027s buffer using the server-supplied length (req_fsize) instead of cb. A malicious or compromised RDP server can return an oversized CB_FILECONTENTS_RESPONSE, causing an out-of-bounds write of attacker-controlled data into the paste consumer\u0027s heap buffer when a user pastes server-offered clipboard file contents.",
"id": "GHSA-m4j8-6wj9-56fg",
"modified": "2026-08-02T15:30:21Z",
"published": "2026-08-02T15:30:21Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m37j-jcr2-8gcc"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68579"
},
{
"type": "WEB",
"url": "https://github.com/FreeRDP/FreeRDP/commit/5e8e987b469b60a3bafadf8f5afc40f91c09f458"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/freerdp-before-heap-overflow-via-cliprdrstream-read"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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-M4JC-PVQ2-2J6X
Vulnerability from github – Published: 2023-01-27 00:30 – Updated: 2025-11-04 21:30Several stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020. A specially-crafted network packet can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger these vulnerabilities.This buffer overflow is in the function that manages the 'no vpn l2tp advanced name WORD dns (yes|no) mtu <128-16384> mru <128-16384> auth (on|off) password (WORD|null)' command template.
{
"affected": [],
"aliases": [
"CVE-2022-41020"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-26T22:15:00Z",
"severity": "HIGH"
},
"details": "Several stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020. A specially-crafted network packet can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger these vulnerabilities.This buffer overflow is in the function that manages the \u0027no vpn l2tp advanced name WORD dns (yes|no) mtu \u003c128-16384\u003e mru \u003c128-16384\u003e auth (on|off) password (WORD|null)\u0027 command template.",
"id": "GHSA-m4jc-pvq2-2j6x",
"modified": "2025-11-04T21:30:31Z",
"published": "2023-01-27T00:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41020"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1613"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1613"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-M4M9-C6H9-VG2H
Vulnerability from github – Published: 2024-07-12 15:31 – Updated: 2025-11-04 00:30In the Linux kernel, the following vulnerability has been resolved:
scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory
There is a potential out-of-bounds access when using test_bit() on a single word. The test_bit() and set_bit() functions operate on long values, and when testing or setting a single word, they can exceed the word boundary. KASAN detects this issue and produces a dump:
BUG: KASAN: slab-out-of-bounds in _scsih_add_device.constprop.0 (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 drivers/scsi/mpt3sas/mpt3sas_scsih.c:7331) mpt3sas
Write of size 8 at addr ffff8881d26e3c60 by task kworker/u1536:2/2965
For full log, please look at [1].
Make the allocation at least the size of sizeof(unsigned long) so that set_bit() and test_bit() have sufficient room for read/write operations without overwriting unallocated memory.
[1] Link: https://lore.kernel.org/all/ZkNcALr3W3KGYYJG@gmail.com/
{
"affected": [],
"aliases": [
"CVE-2024-40901"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-12T13:15:13Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory\n\nThere is a potential out-of-bounds access when using test_bit() on a single\nword. The test_bit() and set_bit() functions operate on long values, and\nwhen testing or setting a single word, they can exceed the word\nboundary. KASAN detects this issue and produces a dump:\n\n\t BUG: KASAN: slab-out-of-bounds in _scsih_add_device.constprop.0 (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 drivers/scsi/mpt3sas/mpt3sas_scsih.c:7331) mpt3sas\n\n\t Write of size 8 at addr ffff8881d26e3c60 by task kworker/u1536:2/2965\n\nFor full log, please look at [1].\n\nMake the allocation at least the size of sizeof(unsigned long) so that\nset_bit() and test_bit() have sufficient room for read/write operations\nwithout overwriting unallocated memory.\n\n[1] Link: https://lore.kernel.org/all/ZkNcALr3W3KGYYJG@gmail.com/",
"id": "GHSA-m4m9-c6h9-vg2h",
"modified": "2025-11-04T00:30:52Z",
"published": "2024-07-12T15:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40901"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0081d2b3ae0a17a86b8cc0fa3c8bdc54e233ba16"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/18abb5db0aa9b2d48f7037a88b41af2eef821674"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/19649e49a6df07cd2e03e0a11396fd3a99485ec2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4254dfeda82f20844299dca6c38cbffcfd499f41"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/46bab2bcd771e725ff5ca3a68ba68cfeac45676c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/521f333e644c4246ca04a4fc4772edc53dd2a801"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9079338c5a0d1f1fee34fb1c9e99b754efe414c5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e9bce7c751f6d6c7be88c0bc081a66aaf61a23ee"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"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"
}
]
}
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.