CWE-190
AllowedInteger Overflow or Wraparound
Abstraction: Base · Status: Stable
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
3893 vulnerabilities reference this CWE, most recent first.
GHSA-MP83-3FXR-M45V
Vulnerability from github – Published: 2025-04-01 18:30 – Updated: 2025-11-03 21:33In the Linux kernel, the following vulnerability has been resolved:
cifs: Fix integer overflow while processing acregmax mount option
User-provided mount parameter acregmax of type u32 is intended to have an upper limit, but before it is validated, the value is converted from seconds to jiffies which can lead to an integer overflow.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
{
"affected": [],
"aliases": [
"CVE-2025-21964"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-01T16:15:27Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix integer overflow while processing acregmax mount option\n\nUser-provided mount parameter acregmax of type u32 is intended to have\nan upper limit, but before it is validated, the value is converted from\nseconds to jiffies which can lead to an integer overflow.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
"id": "GHSA-mp83-3fxr-m45v",
"modified": "2025-11-03T21:33:26Z",
"published": "2025-04-01T18:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21964"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0252c33cc943e9e48ddfafaa6b1eb72adb68a099"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5f500874ab9b3cc8c169c2ab49f00b838520b9c5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7489161b1852390b4413d57f2457cd40b34da6cc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/833f2903eb8b70faca7967319e580e9ce69729fc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a13351624a6af8d91398860b8c9d4cf6c8e63de5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dd190168e60ac15408f074a1fe0ce36aff34027b"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MP8H-4283-JR44
Vulnerability from github – Published: 2024-12-24 12:30 – Updated: 2025-11-03 21:31In the Linux kernel, the following vulnerability has been resolved:
EDAC/bluefield: Fix potential integer overflow
The 64-bit argument for the "get DIMM info" SMC call consists of mem_ctrl_idx left-shifted 16 bits and OR-ed with DIMM index. With mem_ctrl_idx defined as 32-bits wide the left-shift operation truncates the upper 16 bits of information during the calculation of the SMC argument.
The mem_ctrl_idx stack variable must be defined as 64-bits wide to prevent any potential integer overflow, i.e. loss of data from upper 16 bits.
{
"affected": [],
"aliases": [
"CVE-2024-53161"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-24T12:15:24Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/bluefield: Fix potential integer overflow\n\nThe 64-bit argument for the \"get DIMM info\" SMC call consists of mem_ctrl_idx\nleft-shifted 16 bits and OR-ed with DIMM index. With mem_ctrl_idx defined as\n32-bits wide the left-shift operation truncates the upper 16 bits of\ninformation during the calculation of the SMC argument.\n\nThe mem_ctrl_idx stack variable must be defined as 64-bits wide to prevent any\npotential integer overflow, i.e. loss of data from upper 16 bits.",
"id": "GHSA-mp8h-4283-jr44",
"modified": "2025-11-03T21:31:45Z",
"published": "2024-12-24T12:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53161"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/000930193fe5eb79ce5563ee2e9ddb0c6e4e1bb5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1fe774a93b46bb029b8f6fa9d1f25affa53f06c6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4ad7033de109d0fec99086f352f58a3412e378b8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/578ca89b04680145d41011e7cec8806fefbb59e7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8cc31cfa36ff37aff399b72faa2ded58110112ae"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ac6ebb9edcdb7077e841862c402697c4c48a7c0a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e0269ea7a628fdeddd65b92fe29c09655dbb80b9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fdb90006184aa84c7b4e09144ed0936d4e1891a7"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/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:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MPF8-2M2F-QXJ6
Vulnerability from github – Published: 2022-05-24 16:46 – Updated: 2024-04-04 00:47Improper check before assigning value can lead to integer overflow in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in IPQ4019, IPQ8064, IPQ8074, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCA4020, QCA6174A, QCA6564, QCA6574, QCA6574AU, QCA6584, QCA6584AU, QCA8081, QCA9377, QCA9379, QCA9531, QCA9558, QCA9563, QCA9880, QCA9886, QCA9980, QCN5502, QCS605, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 600, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SD 8CX, SDA660, SDM630, SDM660, SDX20, SDX24, SM7150, Snapdragon_High_Med_2016, SXR1130
{
"affected": [],
"aliases": [
"CVE-2018-11968"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-05-24T17:29:00Z",
"severity": "HIGH"
},
"details": "Improper check before assigning value can lead to integer overflow in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wired Infrastructure and Networking in IPQ4019, IPQ8064, IPQ8074, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCA4020, QCA6174A, QCA6564, QCA6574, QCA6574AU, QCA6584, QCA6584AU, QCA8081, QCA9377, QCA9379, QCA9531, QCA9558, QCA9563, QCA9880, QCA9886, QCA9980, QCN5502, QCS605, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 600, SD 625, SD 636, SD 675, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SD 8CX, SDA660, SDM630, SDM660, SDX20, SDX24, SM7150, Snapdragon_High_Med_2016, SXR1130",
"id": "GHSA-mpf8-2m2f-qxj6",
"modified": "2024-04-04T00:47:01Z",
"published": "2022-05-24T16:46:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-11968"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins#_CVE-2018-11968"
}
],
"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-MPG9-Q64V-XVGV
Vulnerability from github – Published: 2022-05-14 01:52 – Updated: 2022-05-14 01:52Integer overflow may happen in WLAN when calculating an internal structure size due to lack of validation of the input length in Snapdragon Mobile, Snapdragon Wear in version IPQ8074, MDM9206, MDM9607, MDM9650, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 835, SD 845, SD 850, SDA660, SDM429, SDM439, SDM630, SDM632, SDM636, SDM660, SDM710, Snapdragon_High_Med_2016.
{
"affected": [],
"aliases": [
"CVE-2018-11866"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-29T18:29:00Z",
"severity": "HIGH"
},
"details": "Integer overflow may happen in WLAN when calculating an internal structure size due to lack of validation of the input length in Snapdragon Mobile, Snapdragon Wear in version IPQ8074, MDM9206, MDM9607, MDM9650, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 835, SD 845, SD 850, SDA660, SDM429, SDM439, SDM630, SDM632, SDM636, SDM660, SDM710, Snapdragon_High_Med_2016.",
"id": "GHSA-mpg9-q64v-xvgv",
"modified": "2022-05-14T01:52:00Z",
"published": "2022-05-14T01:52:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-11866"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins"
}
],
"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-MPQ7-J427-MJFF
Vulnerability from github – Published: 2025-06-17 15:31 – Updated: 2025-06-17 15:31A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.
{
"affected": [],
"aliases": [
"CVE-2025-6196"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-17T15:15:54Z",
"severity": "MODERATE"
},
"details": "A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.",
"id": "GHSA-mpq7-j427-mjff",
"modified": "2025-06-17T15:31:13Z",
"published": "2025-06-17T15:31:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6196"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-6196"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373117"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/libgepub/-/issues/18"
}
],
"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-MPRF-9G5R-6VXV
Vulnerability from github – Published: 2022-05-24 19:05 – Updated: 2022-05-24 19:05Trusty TLK contains a vulnerability in the NVIDIA TLK kernel where an integer overflow in the calloc size calculation can cause the multiplication of count and size can overflow, which might lead to heap overflows.
{
"affected": [],
"aliases": [
"CVE-2021-34386"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-21T22:15:00Z",
"severity": "MODERATE"
},
"details": "Trusty TLK contains a vulnerability in the NVIDIA TLK kernel where an integer overflow in the calloc size calculation can cause the multiplication of count and size can overflow, which might lead to heap overflows.",
"id": "GHSA-mprf-9g5r-6vxv",
"modified": "2022-05-24T19:05:59Z",
"published": "2022-05-24T19:05:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34386"
},
{
"type": "WEB",
"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5205"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-MPVC-226H-84VM
Vulnerability from github – Published: 2022-05-14 03:02 – Updated: 2022-05-14 03:02The mintToken function of a smart contract implementation for TravelZedi Token (ZEDI), an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.
{
"affected": [],
"aliases": [
"CVE-2018-13184"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-05T02:29:00Z",
"severity": "HIGH"
},
"details": "The mintToken function of a smart contract implementation for TravelZedi Token (ZEDI), an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.",
"id": "GHSA-mpvc-226h-84vm",
"modified": "2022-05-14T03:02:44Z",
"published": "2022-05-14T03:02:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13184"
},
{
"type": "WEB",
"url": "https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md"
},
{
"type": "WEB",
"url": "https://github.com/BlockChainsSecurity/EtherTokens/tree/master/TravelZediToken"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MPXM-97XX-R9QW
Vulnerability from github – Published: 2024-07-09 21:30 – Updated: 2024-07-12 18:31In CacheOpPMRExec of cache_km.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2024-23695"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-09T21:15:11Z",
"severity": "HIGH"
},
"details": "In CacheOpPMRExec of cache_km.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-mpxm-97xx-r9qw",
"modified": "2024-07-12T18:31:46Z",
"published": "2024-07-09T21:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23695"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2024-06-01"
}
],
"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-MQ29-J5XF-CJWR
Vulnerability from github – Published: 2023-10-14 03:31 – Updated: 2023-12-18 19:33MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product.
pyminizip uses version 1.2.11 of zlib's code.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pyminizip"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.2.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-45853"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": true,
"github_reviewed_at": "2023-12-18T19:33:06Z",
"nvd_published_at": "2023-10-14T02:15:09Z",
"severity": "CRITICAL"
},
"details": "MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product.\n\npyminizip uses version 1.2.11 of zlib\u0027s code.",
"id": "GHSA-mq29-j5xf-cjwr",
"modified": "2023-12-18T19:33:06Z",
"published": "2023-10-14T03:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45853"
},
{
"type": "WEB",
"url": "https://github.com/madler/zlib/pull/843"
},
{
"type": "WEB",
"url": "https://github.com/madler/zlib/commit/73331a6a0481067628f065ffe87bb1d8f787d10c"
},
{
"type": "WEB",
"url": "https://chromium.googlesource.com/chromium/src/+/d709fb23806858847131027da95ef4c548813356"
},
{
"type": "WEB",
"url": "https://chromium.googlesource.com/chromium/src/+/de29dd6c7151d3cd37cb4cf0036800ddfb1d8b61"
},
{
"type": "WEB",
"url": "https://github.com/madler/zlib/blob/ac8f12c97d1afd9bafa9c710f827d40a407d3266/contrib/README.contrib#L1-L4"
},
{
"type": "PACKAGE",
"url": "https://github.com/smihica/pyminizip"
},
{
"type": "WEB",
"url": "https://github.com/smihica/pyminizip/blob/master/zlib-1.2.11/contrib/minizip/zip.c"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00026.html"
},
{
"type": "WEB",
"url": "https://pypi.org/project/pyminizip/#history"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-18"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231130-0009"
},
{
"type": "WEB",
"url": "https://www.winimage.com/zLibDll/minizip.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/10/20/9"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/01/24/10"
}
],
"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"
}
],
"summary": "pyminizip affected by zlib\u0027s integer overflow/heap based buffer overflow vulnerability due to vulnerable dependency"
}
GHSA-MQ8J-4764-X4H8
Vulnerability from github – Published: 2022-05-13 01:38 – Updated: 2022-05-13 01:38An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.
{
"affected": [],
"aliases": [
"CVE-2016-2120"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-11-01T13:29:00Z",
"severity": "MODERATE"
},
"details": "An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.",
"id": "GHSA-mq8j-4764-x4h8",
"modified": "2022-05-13T01:38:50Z",
"published": "2022-05-13T01:38:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-2120"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2120"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2017/dsa-3764"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
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.
- If possible, choose a language or compiler that performs automatic bounds checking.
Mitigation MIT-4
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 [REF-1482].
- Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
- Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
Mitigation MIT-8
Strategy: Input Validation
- Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
- Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
Mitigation MIT-36
- Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
- Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
Mitigation MIT-15
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation MIT-26
Strategy: Compilation or Build Hardening
Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.