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.
15251 vulnerabilities reference this CWE, most recent first.
GHSA-FGQ5-6X94-H566
Vulnerability from github – Published: 2022-05-24 19:13 – Updated: 2025-10-22 00:32
VLAI
Details
A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2021-30665"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-08T15:15:00Z",
"severity": "HIGH"
},
"details": "A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..",
"id": "GHSA-fgq5-6x94-h566",
"modified": "2025-10-22T00:32:19Z",
"published": "2022-05-24T19:13:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30665"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212335"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212336"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212339"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212341"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212532"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30665"
}
],
"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-FGQ6-PCCX-G2C5
Vulnerability from github – Published: 2022-12-30 21:30 – Updated: 2023-01-05 06:30
VLAI
Details
TRENDnet TEW755AP 1.13B01 was discovered to contain a stack overflow via the del_num parameter in the icp_delete_img (sub_41DEDC) function.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2022-46596"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-30T21:15:00Z",
"severity": "CRITICAL"
},
"details": "TRENDnet TEW755AP 1.13B01 was discovered to contain a stack overflow via the del_num parameter in the icp_delete_img (sub_41DEDC) function.",
"id": "GHSA-fgq6-pccx-g2c5",
"modified": "2023-01-05T06:30:22Z",
"published": "2022-12-30T21:30:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46596"
},
{
"type": "WEB",
"url": "https://brief-nymphea-813.notion.site/Vul6-TEW755-bof-icp_delete_img-ed2df4b6b4f74520bda8adead2d0d651"
}
],
"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-FGQ8-GVXR-GHW7
Vulnerability from github – Published: 2026-01-01 21:30 – Updated: 2026-02-23 09:31
VLAI
Details
A vulnerability was detected in wasm3 up to 0.5.0. Impacted is the function op_SetSlot_i32/op_CallIndirect of the file m3_exec.h. Performing manipulation results in memory corruption. The attack needs to be approached locally. The exploit is now public and may be used. Unfortunately, the project has no active maintainer at the moment.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-15413"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-01T21:15:41Z",
"severity": "MODERATE"
},
"details": "A vulnerability was detected in wasm3 up to 0.5.0. Impacted is the function op_SetSlot_i32/op_CallIndirect of the file m3_exec.h. Performing manipulation results in memory corruption. The attack needs to be approached locally. The exploit is now public and may be used. Unfortunately, the project has no active maintainer at the moment.",
"id": "GHSA-fgq8-gvxr-ghw7",
"modified": "2026-02-23T09:31:18Z",
"published": "2026-01-01T21:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15413"
},
{
"type": "WEB",
"url": "https://github.com/wasm3/wasm3/issues/543"
},
{
"type": "WEB",
"url": "https://github.com/wasm3/wasm3/issues/547"
},
{
"type": "WEB",
"url": "https://github.com/wasm3/wasm3"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.339334"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.339334"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.719829"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.719831"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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-FGQ9-7JQ6-9M7C
Vulnerability from github – Published: 2022-12-20 21:30 – Updated: 2025-04-16 21:30
VLAI
Details
Some smartphones have the out-of-bounds write vulnerability. Successful exploitation of this vulnerability may cause system service exceptions.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2022-46324"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-20T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Some smartphones have the out-of-bounds write vulnerability. Successful exploitation of this vulnerability may cause system service exceptions.",
"id": "GHSA-fgq9-7jq6-9m7c",
"modified": "2025-04-16T21:30:29Z",
"published": "2022-12-20T21:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46324"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2022/12"
},
{
"type": "WEB",
"url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-202212-0000001462975397"
}
],
"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-FGQG-VF3G-MMRR
Vulnerability from github – Published: 2025-11-11 18:30 – Updated: 2025-11-11 18:30
VLAI
Details
Illustrator on iPad versions 3.0.9 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-61827"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-11T18:15:42Z",
"severity": "HIGH"
},
"details": "Illustrator on iPad versions 3.0.9 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-fgqg-vf3g-mmrr",
"modified": "2025-11-11T18:30:22Z",
"published": "2025-11-11T18:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61827"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/illustrator-mobile-ios/apsb25-111.html"
}
],
"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-FH37-RQ45-7GC5
Vulnerability from github – Published: 2022-05-17 01:52 – Updated: 2022-05-17 01:52
VLAI
Details
The jpc_crg_getparms function in libjasper/jpc/jpc_cs.c in JasPer 1.900.1 uses an incorrect data type during a certain size calculation, which allows remote attackers to trigger a heap-based buffer overflow and execute arbitrary code, or cause a denial of service (heap memory corruption), via a crafted component registration (CRG) marker segment in a JPEG2000 file.
{
"affected": [],
"aliases": [
"CVE-2011-4517"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-12-15T03:57:00Z",
"severity": "MODERATE"
},
"details": "The jpc_crg_getparms function in libjasper/jpc/jpc_cs.c in JasPer 1.900.1 uses an incorrect data type during a certain size calculation, which allows remote attackers to trigger a heap-based buffer overflow and execute arbitrary code, or cause a denial of service (heap memory corruption), via a crafted component registration (CRG) marker segment in a JPEG2000 file.",
"id": "GHSA-fh37-rq45-7gc5",
"modified": "2022-05-17T01:52:06Z",
"published": "2022-05-17T01:52:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-4517"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=747726"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/71701"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-December/071458.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071561.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00010.html"
},
{
"type": "WEB",
"url": "http://osvdb.org/77596"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2015-0698.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/47193"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/47306"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/47353"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=swg21660640"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2011/dsa-2371"
},
{
"type": "WEB",
"url": "http://www.kb.cert.org/vuls/id/887409"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/topics/security/cpujan2012-366304.html"
},
{
"type": "WEB",
"url": "http://www.redhat.com/support/errata/RHSA-2011-1807.html"
},
{
"type": "WEB",
"url": "http://www.redhat.com/support/errata/RHSA-2011-1811.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/50992"
},
{
"type": "WEB",
"url": "http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2015\u0026m=slackware-security.538606"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-1315-1"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-FH3M-7FGJ-3WQ2
Vulnerability from github – Published: 2022-05-14 03:26 – Updated: 2022-05-14 03:26
VLAI
Details
In impeg2d_api_set_display_frame of impeg2d_api_main.c, there is an out of bound write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0, 8.1. Android ID: A-70399408.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2017-13249"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-04T17:29:00Z",
"severity": "HIGH"
},
"details": "In impeg2d_api_set_display_frame of impeg2d_api_main.c, there is an out of bound write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2, 8.0, 8.1. Android ID: A-70399408.",
"id": "GHSA-fh3m-7fgj-3wq2",
"modified": "2022-05-14T03:26:43Z",
"published": "2022-05-14T03:26:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13249"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2018-03-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103255"
}
],
"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-FH43-5V3X-C3VR
Vulnerability from github – Published: 2022-05-13 01:18 – Updated: 2022-05-13 01:18
VLAI
Details
An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-11237"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-05-18T16:29:00Z",
"severity": "HIGH"
},
"details": "An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.",
"id": "GHSA-fh43-5v3x-c3vr",
"modified": "2022-05-13T01:18:53Z",
"published": "2022-05-13T01:18:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-11237"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHBA-2019:0327"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:3092"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20190329-0001"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20190401-0001"
},
{
"type": "WEB",
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=23196"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4416-1"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/44750"
},
{
"type": "WEB",
"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/104256"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FH56-85CW-5PQ6
Vulnerability from github – Published: 2022-01-21 23:27 – Updated: 2024-11-18 22:47
VLAI
Summary
UltraJSON vulnerable to Out-of-bounds Write
Details
UltraJSON (aka ujson) 1.34 through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode).
Severity
5.5 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "ujson"
},
"ranges": [
{
"events": [
{
"introduced": "1.34"
},
{
"fixed": "5.2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-45958"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2022-01-12T19:29:48Z",
"nvd_published_at": "2022-01-01T00:15:00Z",
"severity": "MODERATE"
},
"details": "UltraJSON (aka ujson) 1.34 through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode).",
"id": "GHSA-fh56-85cw-5pq6",
"modified": "2024-11-18T22:47:32Z",
"published": "2022-01-21T23:27:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45958"
},
{
"type": "WEB",
"url": "https://github.com/ultrajson/ultrajson/issues/501"
},
{
"type": "WEB",
"url": "https://github.com/ultrajson/ultrajson/issues/502#issuecomment-1031747284"
},
{
"type": "WEB",
"url": "https://github.com/ultrajson/ultrajson/pull/504"
},
{
"type": "WEB",
"url": "https://github.com/ultrajson/ultrajson/pull/519"
},
{
"type": "WEB",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-fh56-85cw-5pq6"
},
{
"type": "WEB",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/ujson/PYSEC-2022-25.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/ultrajson/ultrajson"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00023.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CN7W3GOXALINKFUUE7ICQIC2EF5HNKUQ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O6JUWQTJLA2CMG4CJN7DCUVSOXLZIIXL"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ULX35TSWLBBIMEH44MUORPXYYRZKEDC6"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "UltraJSON vulnerable to Out-of-bounds Write"
}
GHSA-FH5R-JVVV-3VJ5
Vulnerability from github – Published: 2023-09-11 15:31 – Updated: 2024-04-04 07:35
VLAI
Details
Adobe InCopy versions 17.1 (and earlier) and 16.4.1 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-28836"
],
"database_specific": {
"cwe_ids": [
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-11T14:15:08Z",
"severity": "HIGH"
},
"details": "Adobe InCopy versions 17.1 (and earlier) and 16.4.1 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-fh5r-jvvv-3vj5",
"modified": "2024-04-04T07:35:14Z",
"published": "2023-09-11T15:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-28836"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/incopy/apsb22-28.html"
}
],
"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.