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.
3866 vulnerabilities reference this CWE, most recent first.
GHSA-Q9H6-C2FF-PRCP
Vulnerability from github – Published: 2024-01-02 06:30 – Updated: 2024-01-02 06:30Memory corruption in TZ Secure OS while requesting a memory allocation from TA region.
{
"affected": [],
"aliases": [
"CVE-2023-33032"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-02T06:15:09Z",
"severity": "CRITICAL"
},
"details": "Memory corruption in TZ Secure OS while requesting a memory allocation from TA region.",
"id": "GHSA-q9h6-c2ff-prcp",
"modified": "2024-01-02T06:30:30Z",
"published": "2024-01-02T06:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33032"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/january-2024-bulletin"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q9RW-8758-HCCJ
Vulnerability from github – Published: 2022-03-07 00:00 – Updated: 2022-03-17 00:03In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.
{
"affected": [],
"aliases": [
"CVE-2022-26495"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-06T06:15:00Z",
"severity": "CRITICAL"
},
"details": "In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.",
"id": "GHSA-q9rw-8758-hccj",
"modified": "2022-03-17T00:03:11Z",
"published": "2022-03-07T00:00:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26495"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00014.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/nbd/2022/01/msg00037.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G2UPX62BIWOOHSACGUDB7E3O4URNN37F"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZHR73XMAJTCFGKUZRXVTZKCK2X3IFNA"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G2UPX62BIWOOHSACGUDB7E3O4URNN37F"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IZHR73XMAJTCFGKUZRXVTZKCK2X3IFNA"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202402-10"
},
{
"type": "WEB",
"url": "https://sourceforge.net/projects/nbd/files/nbd"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5100"
}
],
"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-Q9X7-4RF7-4XQ2
Vulnerability from github – Published: 2025-07-25 18:30 – Updated: 2025-07-25 18:30A flaw was found in the SFTP server message decoding logic of libssh. The issue occurs due to an incorrect packet length check that allows an integer overflow when handling large payload sizes on 32-bit systems. This issue leads to failed memory allocation and causes the server process to crash, resulting in a denial of service.
{
"affected": [],
"aliases": [
"CVE-2025-5449"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-25T18:15:26Z",
"severity": "MODERATE"
},
"details": "A flaw was found in the SFTP server message decoding logic of libssh. The issue occurs due to an incorrect packet length check that allows an integer overflow when handling large payload sizes on 32-bit systems. This issue leads to failed memory allocation and causes the server process to crash, resulting in a denial of service.",
"id": "GHSA-q9x7-4rf7-4xq2",
"modified": "2025-07-25T18:30:41Z",
"published": "2025-07-25T18:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5449"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-5449"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2369705"
},
{
"type": "WEB",
"url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=261612179f740bc62ba363d98b3bd5e5573a811f"
},
{
"type": "WEB",
"url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=3443aec90188d6aab9282afc80a81df5ab72c4da"
},
{
"type": "WEB",
"url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=5504ff40515439a5fecbb17da7483000c4d12eb7"
},
{
"type": "WEB",
"url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=78485f446af9b30e37eb8f177b81940710d54496"
},
{
"type": "WEB",
"url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=f79ec51b7fd519dbc5737a7ba826e3ed093f6ceb"
},
{
"type": "WEB",
"url": "https://www.libssh.org/security/advisories/CVE-2025-5449.txt"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-QC47-RHXP-2458
Vulnerability from github – Published: 2022-05-14 03:13 – Updated: 2022-05-14 03:13The mintToken function of a smart contract implementation for PMHToken, 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-2018-13705"
],
"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 PMHToken, 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-qc47-rhxp-2458",
"modified": "2022-05-14T03:13:07Z",
"published": "2022-05-14T03:13:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13705"
},
{
"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/PMHToken"
}
],
"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-QC5M-FQ47-QGPW
Vulnerability from github – Published: 2022-05-24 22:28 – Updated: 2022-05-24 22:28An arbitrary code execution vulnerability exists in the rendering functionality of Nitro Software, Inc.’s Nitro Pro 13.13.2.242. When drawing the contents of a page using colors from an indexed colorspace, the application can miscalculate the size of a buffer when allocating space for its colors. When using this allocated buffer, the application can write outside its bounds and cause memory corruption which can lead to code execution. A specially crafted document must be loaded by a victim in order to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2020-6116"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-17T13:15:00Z",
"severity": "HIGH"
},
"details": "An arbitrary code execution vulnerability exists in the rendering functionality of Nitro Software, Inc.\u2019s Nitro Pro 13.13.2.242. When drawing the contents of a page using colors from an indexed colorspace, the application can miscalculate the size of a buffer when allocating space for its colors. When using this allocated buffer, the application can write outside its bounds and cause memory corruption which can lead to code execution. A specially crafted document must be loaded by a victim in order to trigger this vulnerability.",
"id": "GHSA-qc5m-fq47-qgpw",
"modified": "2022-05-24T22:28:54Z",
"published": "2022-05-24T22:28:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6116"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1070"
}
],
"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-QC68-FGQR-Q53F
Vulnerability from github – Published: 2022-07-20 00:00 – Updated: 2022-07-27 00:00DOS / potential heap overwrite in qtdemux using zlib decompression. Integer overflow in qtdemux element in qtdemux_inflate function which causes a segfault, or could cause a heap overwrite, depending on libc and OS. Depending on the libc used, and the underlying OS capabilities, it could be just a segfault or a heap overwrite.
{
"affected": [],
"aliases": [
"CVE-2022-2122"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-19T20:15:00Z",
"severity": "HIGH"
},
"details": "DOS / potential heap overwrite in qtdemux using zlib decompression. Integer overflow in qtdemux element in qtdemux_inflate function which causes a segfault, or could cause a heap overwrite, depending on libc and OS. Depending on the libc used, and the underlying OS capabilities, it could be just a segfault or a heap overwrite.",
"id": "GHSA-qc68-fgqr-q53f",
"modified": "2022-07-27T00:00:31Z",
"published": "2022-07-20T00:00:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2122"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/08/msg00001.html"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5204"
}
],
"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-QC7J-RJ7F-V6W6
Vulnerability from github – Published: 2022-05-14 03:03 – Updated: 2022-05-14 03:03The mintToken function of a smart contract implementation for TCash, 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-2018-13518"
],
"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 TCash, 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-qc7j-rj7f-v6w6",
"modified": "2022-05-14T03:03:31Z",
"published": "2022-05-14T03:03:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13518"
},
{
"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/TCash"
}
],
"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-QC83-G4W3-PXPQ
Vulnerability from github – Published: 2026-05-29 00:38 – Updated: 2026-05-29 18:31Integer overflow in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Critical)
{
"affected": [],
"aliases": [
"CVE-2026-9882"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-472"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-28T23:16:46Z",
"severity": "MODERATE"
},
"details": "Integer overflow in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Critical)",
"id": "GHSA-qc83-g4w3-pxpq",
"modified": "2026-05-29T18:31:22Z",
"published": "2026-05-29T00:38:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9882"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/506375217"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-QCHP-2HVJ-GJ3Q
Vulnerability from github – Published: 2022-05-14 01:22 – Updated: 2025-11-25 18:32An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks, resulting in possible out-of-bounds writes. This could lead to a potentially exploitable crash triggerable by web content. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.
{
"affected": [],
"aliases": [
"CVE-2018-5159"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-06-11T21:29:00Z",
"severity": "CRITICAL"
},
"details": "An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks, resulting in possible out-of-bounds writes. This could lead to a potentially exploitable crash triggerable by web content. This vulnerability affects Thunderbird \u003c 52.8, Thunderbird ESR \u003c 52.8, Firefox \u003c 60, and Firefox ESR \u003c 52.8.",
"id": "GHSA-qchp-2hvj-gj3q",
"modified": "2025-11-25T18:32:13Z",
"published": "2022-05-14T01:22:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5159"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2018-13"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2018-12"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2018-11"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/44759"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4209"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4199"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3660-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3645-1"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201811-13"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201810-01"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00013.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00007.html"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1441941"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1726"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1725"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1415"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:1414"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/104136"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1040896"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QCM7-3C5W-VHG7
Vulnerability from github – Published: 2022-05-14 02:06 – Updated: 2025-04-12 12:46Integer overflow in the regcomp implementation in the Henry Spencer BSD regex library (aka rxspencer) alpha3.8.g5 on 32-bit platforms, as used in NetBSD through 6.1.5 and other products, might allow context-dependent attackers to execute arbitrary code via a large regular expression that leads to a heap-based buffer overflow.
{
"affected": [],
"aliases": [
"CVE-2015-2305"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2015-03-30T10:59:00Z",
"severity": "MODERATE"
},
"details": "Integer overflow in the regcomp implementation in the Henry Spencer BSD regex library (aka rxspencer) alpha3.8.g5 on 32-bit platforms, as used in NetBSD through 6.1.5 and other products, might allow context-dependent attackers to execute arbitrary code via a large regular expression that leads to a heap-based buffer overflow.",
"id": "GHSA-qcm7-3c5w-vhg7",
"modified": "2025-04-12T12:46:35Z",
"published": "2022-05-14T02:06:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-2305"
},
{
"type": "WEB",
"url": "https://guidovranken.wordpress.com/2015/02/04/full-disclosure-heap-overflow-in-h-spencers-regex-library-on-32-bit-systems"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT205267"
},
{
"type": "WEB",
"url": "http://blog.clamav.net/2015/04/clamav-0987-has-been-released.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00005.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00026.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2015-04/msg00002.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2015-05/msg00024.html"
},
{
"type": "WEB",
"url": "http://marc.info/?l=bugtraq\u0026m=143403519711434\u0026w=2"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2015/02/07/14"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2015/03/11/8"
},
{
"type": "WEB",
"url": "http://php.net/ChangeLog-5.php"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2015-1053.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2015-1066.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2015/dsa-3195"
},
{
"type": "WEB",
"url": "http://www.kb.cert.org/vuls/id/695940"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/72611"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1031947"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2572-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2594-1"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.