CWE-787
Weakness 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.
Dimensions
- Behavior-Type: Write
- Resource-Type: Memory Buffer
- Resource-Property: Out-of-bounds
Mapping guidance
This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities. However, closer examination is required.
While this CWE is allowed for mapping, it has more specific children that might be a better fit. Carefully read both the name and description to ensure that this mapping is appropriate. Consider the root cause errors that have led to the out-of-bounds write by examining "CanFollow" relationships for this entry.
Relationships and members
Modes of introduction
Detection methods
Automated Static Analysis
This weakness can often be detected using automated static analysis tools. Many modern tools use data flow analysis or constraint-based techniques to minimize the number of false positives.
Automated static analysis generally does not account for environmental considerations when reporting out-of-bounds memory operations. This can make it difficult for users to determine which warnings should be investigated first. For example, an analysis tool might report buffer overflows that originate from command line arguments in a program that is not expected to run with setuid or other special privileges.
Effectiveness: High
Detection techniques for buffer-related errors are more mature than for most other weakness types.
Automated Dynamic Analysis
This weakness can be detected using dynamic tools and techniques that interact with the software using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The software's operation may slow down, but it should not become unstable, crash, or generate incorrect results.
Automated Dynamic Analysis
Use tools that are integrated during compilation to insert runtime error-checking mechanisms related to memory safety errors, such as AddressSanitizer (ASan) for C/C++ [REF-1518].
Effectiveness: Moderate
Crafted inputs are necessary to reach the code containing the error, such as generated by fuzzers. Also, these tools may reduce performance, and they only report the error condition - not the original mistake that led to the error.
Content history
Suggested mappings to ISA/IEC 62443.
Provided diagram to improve CWE usability
updated Demonstrative_Examples
updated Relationships
updated Common_Consequences
updated Demonstrative_Examples
updated Relationships
updated Description
updated Applicable_Platforms, Demonstrative_Examples, Detection_Factors, Likelihood_of_Exploit, Observed_Examples, Potential_Mitigations, References, Relationships, Time_of_Introduction
updated Observed_Examples, Relationships
updated Observed_Examples
updated Alternate_Terms, Demonstrative_Examples, Observed_Examples, Relationships
updated Relationships
updated Demonstrative_Examples
updated Demonstrative_Examples, Potential_Mitigations, Relationships
updated Observed_Examples, Relationships
updated Applicable_Platforms
updated Alternate_Terms, Demonstrative_Examples, Description
updated Potential_Mitigations, References, Relationships, Taxonomy_Mappings
updated Mapping_Notes, Relationships, Taxonomy_Mappings
updated Demonstrative_Examples
updated Alternate_Terms, Common_Consequences, Description, Diagram, Weakness_Ordinalities
updated Observed_Examples, Relationships
updated Observed_Examples, Relationships
updated Affected_Resources, Functional_Areas, References
updated Applicable_Platforms, Detection_Factors, References, Relationships
updated Mapping_Notes
updated Dimensions, Observed_Examples, References, Relationships, Taxonomy_Mappings
16918 vulnerabilities reference this CWE, most recent first.
GHSA-PHM8-QR5M-CPMJ
Vulnerability from github – Published: 2026-03-10 21:32 – Updated: 2026-03-11 15:31In mfc_dec_dqbuf of mfc_dec_v4l2.c, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2026-0117"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-10T21:16:45Z",
"severity": "HIGH"
},
"details": "In mfc_dec_dqbuf of mfc_dec_v4l2.c, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-phm8-qr5m-cpmj",
"modified": "2026-03-11T15:31:46Z",
"published": "2026-03-10T21:32:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0117"
},
{
"type": "WEB",
"url": "https://source.android.com/docs/security/bulletin/2026/2026-03-01"
},
{
"type": "WEB",
"url": "https://source.android.com/docs/security/bulletin/pixel/2026/2026-03-01"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2026-03-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PHMC-786Q-M6FP
Vulnerability from github – Published: 2026-10-17 00:31 – Updated: 2026-10-17 00:31A flaw was found in parted. A heap-based buffer overflow exists in libparted's file system resizing logic when handling FAT16 volumes. By convincing a user or administrator to resize a specially crafted FAT16 file system image with malformed directory metadata, an attacker can trigger an oversized read into a fixed-size memory buffer. This issue causes memory corruption, resulting in an application crash and a denial of service (DoS).
{
"affected": [],
"aliases": [
"CVE-2026-89088"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-16T23:17:02Z",
"severity": "MODERATE"
},
"details": "A flaw was found in parted. A heap-based buffer overflow exists in libparted\u0027s file system resizing logic when handling FAT16 volumes. By convincing a user or administrator to resize a specially crafted FAT16 file system image with malformed directory metadata, an attacker can trigger an oversized read into a fixed-size memory buffer. This issue causes memory corruption, resulting in an application crash and a denial of service (DoS).",
"id": "GHSA-phmc-786q-m6fp",
"modified": "2026-10-17T00:31:19Z",
"published": "2026-10-17T00:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89088"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-89088"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2462951"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PHMR-F56M-2V9W
Vulnerability from github – Published: 2022-05-05 00:00 – Updated: 2022-05-13 00:01Tenda AX12 v22.03.01.21_CN was discovered to contain a stack overflow via the list parameter at /goform/SetNetControlList.
{
"affected": [],
"aliases": [
"CVE-2022-28082"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-05-04T14:15:00Z",
"severity": "CRITICAL"
},
"details": "Tenda AX12 v22.03.01.21_CN was discovered to contain a stack overflow via the list parameter at /goform/SetNetControlList.",
"id": "GHSA-phmr-f56m-2v9w",
"modified": "2022-05-13T00:01:11Z",
"published": "2022-05-05T00:00:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-28082"
},
{
"type": "WEB",
"url": "https://github.com/eeeeeeeeeeeeeeeea/IOT-vulhub/tree/main/TendaAX12"
}
],
"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-PHPG-FWQQ-J32W
Vulnerability from github – Published: 2023-08-10 03:30 – Updated: 2024-04-04 06:46Out-of-bounds Write in IpcTxPcscTransmitApdu of libsec-ril prior to SMR Aug-2023 Release 1 allows local attacker to execute arbitrary code.
{
"affected": [],
"aliases": [
"CVE-2023-30694"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-10T02:15:11Z",
"severity": "HIGH"
},
"details": "Out-of-bounds Write in IpcTxPcscTransmitApdu of libsec-ril prior to SMR Aug-2023 Release 1 allows local attacker to execute arbitrary code.",
"id": "GHSA-phpg-fwqq-j32w",
"modified": "2024-04-04T06:46:23Z",
"published": "2023-08-10T03:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-30694"
},
{
"type": "WEB",
"url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2023\u0026month=08"
}
],
"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-PHQJ-4MHP-Q6MQ
Vulnerability from github – Published: 2026-05-19 19:50 – Updated: 2026-05-19 19:50CipherCtxRef::cipher_update_inplace incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced.
This only impacts users using AES key-wrap-with-padding ciphers.
This method was missed in the fix for GHSA-xv59-967r-8726
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "openssl"
},
"ranges": [
{
"events": [
{
"introduced": "0.10.50"
},
{
"fixed": "0.10.80"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-45784"
],
"database_specific": {
"cwe_ids": [
"CWE-131",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-19T19:50:11Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "`CipherCtxRef::cipher_update_inplace` incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller\u0027s buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced.\n\nThis only impacts users using AES key-wrap-with-padding ciphers.\n\nThis method was missed in the fix for GHSA-xv59-967r-8726",
"id": "GHSA-phqj-4mhp-q6mq",
"modified": "2026-05-19T19:50:11Z",
"published": "2026-05-19T19:50:11Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-phqj-4mhp-q6mq"
},
{
"type": "PACKAGE",
"url": "https://github.com/rust-openssl/rust-openssl"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers"
}
GHSA-PHQX-GJXC-WRP9
Vulnerability from github – Published: 2023-06-13 21:30 – Updated: 2024-04-04 04:47Matthias-Wandel/jhead jhead 3.06 is vulnerable to Buffer Overflow via shellescape(), jhead.c, jhead. jhead copies strings to a stack buffer when it detects a &i or &o. However, jhead does not check the boundary of the stack buffer. As a result, there will be a stack buffer overflow problem when multiple &i or &o are given.
{
"affected": [],
"aliases": [
"CVE-2022-28550"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-13T20:15:08Z",
"severity": "CRITICAL"
},
"details": "Matthias-Wandel/jhead jhead 3.06 is vulnerable to Buffer Overflow via shellescape(), jhead.c, jhead. jhead copies strings to a stack buffer when it detects a \u0026i or \u0026o. However, jhead does not check the boundary of the stack buffer. As a result, there will be a stack buffer overflow problem when multiple `\u0026i` or `\u0026o` are given.",
"id": "GHSA-phqx-gjxc-wrp9",
"modified": "2024-04-04T04:47:56Z",
"published": "2023-06-13T21:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-28550"
},
{
"type": "WEB",
"url": "https://github.com/Matthias-Wandel/jhead/issues/51"
},
{
"type": "WEB",
"url": "https://github.com/Matthias-Wandel/jhead/commit/64894dbc7d8e1e232e85f1cab25c64290b2fc167"
}
],
"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-PHRR-QC3R-4V9P
Vulnerability from github – Published: 2024-03-28 03:30 – Updated: 2024-03-28 03:30A vulnerability was found in appneta tcpreplay up to 4.4.4. It has been classified as problematic. This affects the function get_layer4_v6 of the file /tcpreplay/src/common/get.c. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The identifier VDB-258333 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
{
"affected": [],
"aliases": [
"CVE-2024-3024"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-28T02:15:11Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in appneta tcpreplay up to 4.4.4. It has been classified as problematic. This affects the function get_layer4_v6 of the file /tcpreplay/src/common/get.c. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The identifier VDB-258333 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-phrr-qc3r-4v9p",
"modified": "2024-03-28T03:30:59Z",
"published": "2024-03-28T03:30:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-3024"
},
{
"type": "WEB",
"url": "https://docs.google.com/document/d/1wCIrViAJwGsO5afPBLLjRhO5RClsoUo3J9q1psLs84s/edit?usp=sharing"
},
{
"type": "WEB",
"url": "https://drive.google.com/file/d/1zV9MSkfYLIrdtK3yczy1qbsJr_yN2fwH/view"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.258333"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.258333"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.297866"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-PHVC-RJR5-R475
Vulnerability from github – Published: 2022-10-28 12:00 – Updated: 2022-10-29 12:00Advantech R-SeeNet Versions 2.4.17 and prior are vulnerable to a stack-based buffer overflow. An unauthorized attacker can use an outsized filename to overflow the stack buffer and enable remote code execution.
{
"affected": [],
"aliases": [
"CVE-2022-3386"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-27T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Advantech R-SeeNet Versions 2.4.17 and prior are vulnerable to a stack-based buffer overflow. An unauthorized attacker can use an outsized filename to overflow the stack buffer and enable remote code execution.",
"id": "GHSA-phvc-rjr5-r475",
"modified": "2022-10-29T12:00:48Z",
"published": "2022-10-28T12:00:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3386"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-22-291-01"
}
],
"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-PJ23-86WW-F72P
Vulnerability from github – Published: 2025-12-28 18:30 – Updated: 2026-01-14 21:34In GnuPG through 2.4.8, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input.
{
"affected": [],
"aliases": [
"CVE-2025-68973"
],
"database_specific": {
"cwe_ids": [
"CWE-675",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-28T17:16:01Z",
"severity": "HIGH"
},
"details": "In GnuPG through 2.4.8, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input.",
"id": "GHSA-pj23-86ww-f72p",
"modified": "2026-01-14T21:34:04Z",
"published": "2025-12-28T18:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68973"
},
{
"type": "WEB",
"url": "https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9"
},
{
"type": "WEB",
"url": "https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306"
},
{
"type": "WEB",
"url": "https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51"
},
{
"type": "WEB",
"url": "https://gpg.fail/memcpy"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2026/01/msg00008.html"
},
{
"type": "WEB",
"url": "https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i"
},
{
"type": "WEB",
"url": "https://news.ycombinator.com/item?id=46403200"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2025/12/28/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/12/29/11"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-PJ2Q-RQ9J-FFQ5
Vulnerability from github – Published: 2024-03-11 18:31 – Updated: 2024-12-12 18:30In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: fix a memory corruption
iwl_fw_ini_trigger_tlv::data is a pointer to a __le32, which means that if we copy to iwl_fw_ini_trigger_tlv::data + offset while offset is in bytes, we'll write past the buffer.
{
"affected": [],
"aliases": [
"CVE-2024-26610"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-11T18:15:19Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: fix a memory corruption\n\niwl_fw_ini_trigger_tlv::data is a pointer to a __le32, which means that\nif we copy to iwl_fw_ini_trigger_tlv::data + offset while offset is in\nbytes, we\u0027ll write past the buffer.",
"id": "GHSA-pj2q-rq9j-ffq5",
"modified": "2024-12-12T18:30:50Z",
"published": "2024-03-11T18:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26610"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/05dd9facfb9a1e056752c0901c6e86416037d15a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/870171899d75d43e3d14360f3a4850e90a9c289b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/99a23462fe1a6f709f0fda3ebbe8b6b193ac75bd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aa2cc9363926991ba74411e3aa0a0ea82c1ffe32"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cf4a0d840ecc72fcf16198d5e9c505ab7d5a5e4d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f32a81999d0b8e5ce60afb5f6a3dd7241c17dd67"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.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.