Common Weakness Enumeration

CWE-190

Allowed

Integer Overflow or Wraparound

Abstraction: Base · Status: Stable

API response cwe.mitre.org

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.

3869 vulnerabilities reference this CWE, most recent first.

GHSA-CVX9-VR72-7W3V

Vulnerability from github – Published: 2022-05-14 01:04 – Updated: 2022-05-14 01:04
VLAI
Details

Integer overflow in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows local users to gain privileges via a crafted application, aka "Win32k Integer Overflow Vulnerability."

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{
  "affected": [],
  "aliases": [
    "CVE-2013-5058"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2013-12-11T00:55:00Z",
    "severity": "MODERATE"
  },
  "details": "Integer overflow in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows local users to gain privileges via a crafted application, aka \"Win32k Integer Overflow Vulnerability.\"",
  "id": "GHSA-cvx9-vr72-7w3v",
  "modified": "2022-05-14T01:04:05Z",
  "published": "2022-05-14T01:04:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-5058"
    },
    {
      "type": "WEB",
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-101"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-CW3V-VRWG-6PV8

Vulnerability from github – Published: 2023-09-11 21:30 – Updated: 2024-04-04 07:36
VLAI
Details

In build_read_multi_rsp of gatt_sr.cc, there is a possible out of bounds write due to an integer overflow. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2023-35673"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-09-11T21:15:42Z",
    "severity": "HIGH"
  },
  "details": "In build_read_multi_rsp of gatt_sr.cc, there is a possible out of bounds write due to an integer overflow. This could lead to remote (proximal/adjacent) code execution with no additional execution privileges needed. User interaction is not needed for exploitation.",
  "id": "GHSA-cw3v-vrwg-6pv8",
  "modified": "2024-04-04T07:36:40Z",
  "published": "2023-09-11T21:30:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35673"
    },
    {
      "type": "WEB",
      "url": "https://android.googlesource.com/platform/packages/modules/Bluetooth/+/8770c07c102c7fdc74626dc717acc8f6dd1c92cc"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2023-09-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CW46-R5FW-QMFJ

Vulnerability from github – Published: 2022-05-24 17:35 – Updated: 2023-03-12 00:30
VLAI
Details

A flaw was found in ImageMagick in coders/hdr.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type unsigned char. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to ImageMagick 7.0.8-68.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2020-27762"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-12-03T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in ImageMagick in coders/hdr.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned char`. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to ImageMagick 7.0.8-68.",
  "id": "GHSA-cw46-r5fw-qmfj",
  "modified": "2023-03-12T00:30:16Z",
  "published": "2022-05-24T17:35:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27762"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1894680"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html"
    }
  ],
  "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-CW7C-4R65-XF9H

Vulnerability from github – Published: 2022-05-13 01:20 – Updated: 2025-10-22 00:31
VLAI
Details

Integer overflow in computing the required allocation size when instantiating a new javascript object in V8 in Google Chrome prior to 65.0.3325.146 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Severity
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2018-6065"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-11-14T15:29:00Z",
    "severity": "HIGH"
  },
  "details": "Integer overflow in computing the required allocation size when instantiating a new javascript object in V8 in Google Chrome prior to 65.0.3325.146 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
  "id": "GHSA-cw7c-4r65-xf9h",
  "modified": "2025-10-22T00:31:36Z",
  "published": "2022-05-13T01:20:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6065"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:0484"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2018/03/stable-channel-update-for-desktop.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/808192"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6065"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4182"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/44584"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-19-367"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/103297"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CW87-F64Q-CJ99

Vulnerability from github – Published: 2022-05-24 17:15 – Updated: 2022-05-24 17:15
VLAI
Details

While handling the vendor command there is an integer truncation issue that could yield a buffer overflow due to int data type copied to u8 data type in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile in APQ8096AU, MSM8996AU, QCA6574AU, QCN7605, Rennell, SC8180X, SDM710, SDX55, SM7150, SM8150, SM8250, SXR2130

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{
  "affected": [],
  "aliases": [
    "CVE-2019-10624"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-04-16T11:15:00Z",
    "severity": "MODERATE"
  },
  "details": "While handling the vendor command there is an integer truncation issue that could yield a buffer overflow due to int data type copied to u8 data type in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile in APQ8096AU, MSM8996AU, QCA6574AU, QCN7605, Rennell, SC8180X, SDM710, SDX55, SM7150, SM8150, SM8250, SXR2130",
  "id": "GHSA-cw87-f64q-cj99",
  "modified": "2022-05-24T17:15:21Z",
  "published": "2022-05-24T17:15:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10624"
    },
    {
      "type": "WEB",
      "url": "https://www.qualcomm.com/company/product-security/bulletins/april-2020-bulletin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-CWF6-GJ87-3GHQ

Vulnerability from github – Published: 2025-03-07 21:31 – Updated: 2025-11-03 21:32
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

ipv6: Fix signed integer overflow in __ip6_append_data

Resurrect ubsan overflow checks and ubsan report this warning, fix it by change the variable [length] type to size_t.

UBSAN: signed-integer-overflow in net/ipv6/ip6_output.c:1489:19 2147479552 + 8567 cannot be represented in type 'int' CPU: 0 PID: 253 Comm: err Not tainted 5.16.0+ #1 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x214/0x230 show_stack+0x30/0x78 dump_stack_lvl+0xf8/0x118 dump_stack+0x18/0x30 ubsan_epilogue+0x18/0x60 handle_overflow+0xd0/0xf0 __ubsan_handle_add_overflow+0x34/0x44 __ip6_append_data.isra.48+0x1598/0x1688 ip6_append_data+0x128/0x260 udpv6_sendmsg+0x680/0xdd0 inet6_sendmsg+0x54/0x90 sock_sendmsg+0x70/0x88 _syssendmsg+0xe8/0x368 _sys_sendmsg+0x98/0xe0 __sys_sendmmsg+0xf4/0x3b8 __arm64_sys_sendmmsg+0x34/0x48 invoke_syscall+0x64/0x160 el0_svc_common.constprop.4+0x124/0x300 do_el0_svc+0x44/0xc8 el0_svc+0x3c/0x1e8 el0t_64_sync_handler+0x88/0xb0 el0t_64_sync+0x16c/0x170

Changes since v1: -Change the variable [length] type to unsigned, as Eric Dumazet suggested. Changes since v2: -Don't change exthdrlen type in ip6_make_skb, as Paolo Abeni suggested. Changes since v3: -Don't change ulen type in udpv6_sendmsg and l2tp_ip6_sendmsg, as Jakub Kicinski suggested.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-49728"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:48Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix signed integer overflow in __ip6_append_data\n\nResurrect ubsan overflow checks and ubsan report this warning,\nfix it by change the variable [length] type to size_t.\n\nUBSAN: signed-integer-overflow in net/ipv6/ip6_output.c:1489:19\n2147479552 + 8567 cannot be represented in type \u0027int\u0027\nCPU: 0 PID: 253 Comm: err Not tainted 5.16.0+ #1\nHardware name: linux,dummy-virt (DT)\nCall trace:\n  dump_backtrace+0x214/0x230\n  show_stack+0x30/0x78\n  dump_stack_lvl+0xf8/0x118\n  dump_stack+0x18/0x30\n  ubsan_epilogue+0x18/0x60\n  handle_overflow+0xd0/0xf0\n  __ubsan_handle_add_overflow+0x34/0x44\n  __ip6_append_data.isra.48+0x1598/0x1688\n  ip6_append_data+0x128/0x260\n  udpv6_sendmsg+0x680/0xdd0\n  inet6_sendmsg+0x54/0x90\n  sock_sendmsg+0x70/0x88\n  ____sys_sendmsg+0xe8/0x368\n  ___sys_sendmsg+0x98/0xe0\n  __sys_sendmmsg+0xf4/0x3b8\n  __arm64_sys_sendmmsg+0x34/0x48\n  invoke_syscall+0x64/0x160\n  el0_svc_common.constprop.4+0x124/0x300\n  do_el0_svc+0x44/0xc8\n  el0_svc+0x3c/0x1e8\n  el0t_64_sync_handler+0x88/0xb0\n  el0t_64_sync+0x16c/0x170\n\nChanges since v1:\n-Change the variable [length] type to unsigned, as Eric Dumazet suggested.\nChanges since v2:\n-Don\u0027t change exthdrlen type in ip6_make_skb, as Paolo Abeni suggested.\nChanges since v3:\n-Don\u0027t change ulen type in udpv6_sendmsg and l2tp_ip6_sendmsg, as\nJakub Kicinski suggested.",
  "id": "GHSA-cwf6-gj87-3ghq",
  "modified": "2025-11-03T21:32:52Z",
  "published": "2025-03-07T21:31:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49728"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/70549c80fe80ac4e2a22068c76ebebced24f7e74"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84dc940890e91e42898e4443a093281702440abf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f26422eabeb517629568edf8c2dd9c6cb9147584"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f93431c86b631bbca5614c66f966bf3ddb3c2803"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.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-CWMX-4MWH-JC9Q

Vulnerability from github – Published: 2022-05-14 03:13 – Updated: 2022-05-14 03:13
VLAI
Details

The mintToken function of a smart contract implementation for HEY, 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.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2018-13730"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-09T06:29:00Z",
    "severity": "HIGH"
  },
  "details": "The mintToken function of a smart contract implementation for HEY, 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-cwmx-4mwh-jc9q",
  "modified": "2022-05-14T03:13:33Z",
  "published": "2022-05-14T03:13:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13730"
    },
    {
      "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/HEY"
    }
  ],
  "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-CWQ6-FFMR-M8R5

Vulnerability from github – Published: 2025-11-04 06:31 – Updated: 2025-11-04 06:31
VLAI
Details

Memory corruption while processing large input data from a remote source via a communication interface.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-47365"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-04T04:15:39Z",
    "severity": "HIGH"
  },
  "details": "Memory corruption while processing large input data from a remote source via a communication interface.",
  "id": "GHSA-cwq6-ffmr-m8r5",
  "modified": "2025-11-04T06:31:11Z",
  "published": "2025-11-04T06:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47365"
    },
    {
      "type": "WEB",
      "url": "https://docs.qualcomm.com/product/publicresources/securitybulletin/november-2025-bulletin.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-CWWQ-64RR-RV47

Vulnerability from github – Published: 2022-05-17 05:47 – Updated: 2024-02-08 21:30
VLAI
Details

The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2010-1866"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2010-05-07T23:00:00Z",
    "severity": "HIGH"
  },
  "details": "The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.",
  "id": "GHSA-cwwq-64rr-rv47",
  "modified": "2024-02-08T21:30:32Z",
  "published": "2022-05-17T05:47:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2010-1866"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html"
    },
    {
      "type": "WEB",
      "url": "http://php-security.org/2010/05/02/mops-2010-003-php-dechunk-filter-signed-comparison-vulnerability/index.html"
    }
  ],
  "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-CX46-MM2W-4MWV

Vulnerability from github – Published: 2023-08-02 00:30 – Updated: 2025-02-13 18:31
VLAI
Details

A set of carefully crafted ipv6 packets can trigger an integer overflow in the calculation of a fragment reassembled packet's payload length field. This allows an attacker to trigger a kernel panic, resulting in a denial of service.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2023-3107"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-08-01T23:15:30Z",
    "severity": "HIGH"
  },
  "details": "A set of carefully crafted ipv6 packets can trigger an integer overflow in the calculation of a fragment reassembled packet\u0027s payload length field. This allows an attacker to trigger a kernel panic, resulting in a denial of service.",
  "id": "GHSA-cx46-mm2w-4mwv",
  "modified": "2025-02-13T18:31:43Z",
  "published": "2023-08-02T00:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3107"
    },
    {
      "type": "WEB",
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-23:06.ipv6.asc"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20230804-0001"
    }
  ],
  "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"
    }
  ]
}
Mitigation
Requirements

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
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.
  • If possible, choose a language or compiler that performs automatic bounds checking.
Mitigation MIT-4
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 [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
Implementation

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
Implementation
  • 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
Architecture and Design

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
Implementation

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.

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