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.
3869 vulnerabilities reference this CWE, most recent first.
GHSA-VHQ3-XX7W-3WR2
Vulnerability from github – Published: 2022-05-14 01:41 – Updated: 2022-05-14 01:41The mintToken function of Pylon (PYLNT) aka PylonToken, 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, a related issue to CVE-2018-11812.
{
"affected": [],
"aliases": [
"CVE-2018-18667"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-12-28T17:29:00Z",
"severity": "HIGH"
},
"details": "The mintToken function of Pylon (PYLNT) aka PylonToken, 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, a related issue to CVE-2018-11812.",
"id": "GHSA-vhq3-xx7w-3wr2",
"modified": "2022-05-14T01:41:32Z",
"published": "2022-05-14T01:41:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-18667"
},
{
"type": "WEB",
"url": "https://github.com/klenergy/ethereum-contracts/issues/1"
},
{
"type": "WEB",
"url": "https://etherscan.io/address/0x7703c35cffdc5cda8d27aa3df2f9ba6964544b6e#code"
},
{
"type": "WEB",
"url": "https://github.com/n0pn0pn0p/smart_contract_-vulnerability/blob/master/PolyAi.md"
}
],
"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-VHQ7-5JV5-9GWF
Vulnerability from github – Published: 2022-03-05 00:00 – Updated: 2022-03-17 00:03A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.
{
"affected": [],
"aliases": [
"CVE-2021-20303"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-04T18:15:00Z",
"severity": "MODERATE"
},
"details": "A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.",
"id": "GHSA-vhq7-5jv5-9gwf",
"modified": "2022-03-17T00:03:24Z",
"published": "2022-03-05T00:00:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20303"
},
{
"type": "WEB",
"url": "https://github.com/AcademySoftwareFoundation/openexr/pull/831"
},
{
"type": "WEB",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939151"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VHQJ-F5CJ-9X8H
Vulnerability from github – Published: 2026-02-24 15:31 – Updated: 2026-04-08 16:26WriteUHDRImage in coders/uhdr.c uses int arithmetic to compute the pixel buffer size. When image dimensions are large, the multiplication overflows 32-bit int, causing an undersized heap allocation followed by an out-of-bounds write. This can crash the process or potentially lead to an out of bounds heap write.
==1575126==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7fc382ef3820 at pc 0x5560d31f229f bp 0x7ffe865f9530 sp 0x7ffe865f9520
WRITE of size 8 at 0x7fc382ef3820 thread T0
#0 0x5560d31f229e in WriteUHDRImage coders/uhdr.c:807
{
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"name": "Magick.NET-Q16-AnyCPU"
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"introduced": "0"
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{
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"name": "Magick.NET-Q16-HDRI-OpenMP-arm64"
},
"ranges": [
{
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{
"introduced": "0"
},
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"fixed": "14.10.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-x64"
},
"ranges": [
{
"events": [
{
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"fixed": "14.10.3"
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"name": "Magick.NET-Q16-HDRI-arm64"
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"name": "Magick.NET-Q16-HDRI-x64"
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"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x86"
},
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"name": "Magick.NET-Q16-OpenMP-x64"
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"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-x86"
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"ranges": [
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},
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"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-AnyCPU"
},
"ranges": [
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],
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"name": "Magick.NET-Q8-OpenMP-arm64"
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"name": "Magick.NET-Q8-OpenMP-x64"
},
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},
{
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"name": "Magick.NET-Q8-arm64"
},
"ranges": [
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{
"package": {
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"name": "Magick.NET-Q8-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
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}
],
"type": "ECOSYSTEM"
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]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.10.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-25794"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-190"
],
"github_reviewed": true,
"github_reviewed_at": "2026-02-24T15:31:57Z",
"nvd_published_at": "2026-02-24T01:16:13Z",
"severity": "HIGH"
},
"details": "`WriteUHDRImage` in `coders/uhdr.c` uses `int` arithmetic to compute the pixel buffer size. When image dimensions are large, the multiplication overflows 32-bit `int`, causing an undersized heap allocation followed by an out-of-bounds write. This can crash the process or potentially lead to an out of bounds heap write.\n```\n==1575126==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x7fc382ef3820 at pc 0x5560d31f229f bp 0x7ffe865f9530 sp 0x7ffe865f9520\nWRITE of size 8 at 0x7fc382ef3820 thread T0\n #0 0x5560d31f229e in WriteUHDRImage coders/uhdr.c:807\n```",
"id": "GHSA-vhqj-f5cj-9x8h",
"modified": "2026-04-08T16:26:23Z",
"published": "2026-02-24T15:31:57Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-vhqj-f5cj-9x8h"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25794"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/commit/ffe589df5ff8ce1433daa4ccb0d2a9fadfbe30ed"
},
{
"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
},
{
"type": "WEB",
"url": "https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "ImageMagick has heap-buffer-overflow via signed integer overflow in WriteUHDRImage when writing UHDR images with large dimensions"
}
GHSA-VHQQ-R65Q-2HFF
Vulnerability from github – Published: 2024-03-14 06:32 – Updated: 2024-07-03 18:33An Integer-based buffer overflow vulnerability in the SonicOS via IPSec allows a remote attacker in specific conditions to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a specially crafted IKEv2 payload.
{
"affected": [],
"aliases": [
"CVE-2024-22396"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-14T04:15:09Z",
"severity": "MODERATE"
},
"details": "An Integer-based buffer overflow vulnerability in the SonicOS via IPSec allows a remote attacker in specific conditions to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a specially crafted IKEv2 payload.",
"id": "GHSA-vhqq-r65q-2hff",
"modified": "2024-07-03T18:33:44Z",
"published": "2024-03-14T06:32:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-22396"
},
{
"type": "WEB",
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0004"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VHWR-GFG8-HM5J
Vulnerability from github – Published: 2025-03-11 21:30 – Updated: 2025-03-11 21:30Ashlar-Vellum Cobalt XE File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of XE files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25264.
{
"affected": [],
"aliases": [
"CVE-2025-2021"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-11T21:15:53Z",
"severity": "HIGH"
},
"details": "Ashlar-Vellum Cobalt XE File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of XE files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25264.",
"id": "GHSA-vhwr-gfg8-hm5j",
"modified": "2025-03-11T21:30:42Z",
"published": "2025-03-11T21:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2021"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-125"
}
],
"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-VHXW-GJ92-G74W
Vulnerability from github – Published: 2022-05-24 19:17 – Updated: 2022-05-24 19:17An unauthenticated remote user could exploit a potential integer overflow condition in the exacqVision Server with a specially crafted script and cause denial-of-service condition.
{
"affected": [],
"aliases": [
"CVE-2021-27665"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-10-11T16:15:00Z",
"severity": "HIGH"
},
"details": "An unauthenticated remote user could exploit a potential integer overflow condition in the exacqVision Server with a specially crafted script and cause denial-of-service condition.",
"id": "GHSA-vhxw-gj92-g74w",
"modified": "2022-05-24T19:17:10Z",
"published": "2022-05-24T19:17:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27665"
},
{
"type": "WEB",
"url": "https://us-cert.gov/ics/advisories/icsa-21-280-03"
},
{
"type": "WEB",
"url": "https://www.johnsoncontrols.com/cyber-solutions/security-advisories"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-VJ2M-9F5J-MPR5
Vulnerability from github – Published: 2023-06-07 16:26 – Updated: 2023-06-07 16:26Vapor is an HTTP web framework for Swift and middleware is a logic chain between the client and a Vapor route handler. FileMiddleware enables the serving of assets from the Public folder of a project to the client.
Vapor before 4.60.3 is vulnerable to denial of service due to an integer overflow when given invalid range headers while using FileMiddleware. This is patched in 4.60.3.
{
"affected": [
{
"package": {
"ecosystem": "SwiftURL",
"name": "github.com/vapor/vapor"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.60.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-31005"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": true,
"github_reviewed_at": "2023-06-07T16:26:25Z",
"nvd_published_at": "2022-05-31T20:15:00Z",
"severity": "HIGH"
},
"details": "Vapor is an HTTP web framework for Swift and [middleware](https://docs.vapor.codes/advanced/middleware/) is a logic chain between the client and a Vapor route handler. [FileMiddleware](https://docs.vapor.codes/advanced/middleware/#file-middleware) enables the serving of assets from the Public folder of a project to the client. \n\nVapor before 4.60.3 is vulnerable to denial of service due to an integer overflow when given invalid range headers while using FileMiddleware. This is patched in 4.60.3.",
"id": "GHSA-vj2m-9f5j-mpr5",
"modified": "2023-06-07T16:26:25Z",
"published": "2023-06-07T16:26:25Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/vapor/vapor/security/advisories/GHSA-vj2m-9f5j-mpr5"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31005"
},
{
"type": "WEB",
"url": "https://github.com/vapor/vapor/commit/953a349b539b3e0d3653585c8ffb50c427986df1"
},
{
"type": "PACKAGE",
"url": "https://github.com/vapor/vapor"
},
{
"type": "WEB",
"url": "https://github.com/vapor/vapor/releases/tag/4.60.3"
}
],
"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"
}
],
"summary": "Vapor vulnerable to denial of service in HTTP Range Request of FileMiddleware"
}
GHSA-VJ7X-8CXF-Q82G
Vulnerability from github – Published: 2022-05-24 19:10 – Updated: 2022-05-24 19:10An integer overflow in the mintToken function of a smart contract implementation for Doftcoin Token, an Ethereum ERC20 token, allows the owner to cause unexpected financial losses.
{
"affected": [],
"aliases": [
"CVE-2021-34270"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-03T22:15:00Z",
"severity": "HIGH"
},
"details": "An integer overflow in the mintToken function of a smart contract implementation for Doftcoin Token, an Ethereum ERC20 token, allows the owner to cause unexpected financial losses.",
"id": "GHSA-vj7x-8cxf-q82g",
"modified": "2022-05-24T19:10:02Z",
"published": "2022-05-24T19:10:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34270"
},
{
"type": "WEB",
"url": "https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/Doftcoin.md"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-VJ88-PPR4-HJ46
Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-30 03:37In the Linux kernel, the following vulnerability has been resolved:
dm log: fix out-of-bounds write due to region_count overflow
The local variable region_count in create_log_context() is declared as unsigned int (32-bit), but dm_sector_div_up() returns sector_t (64-bit). When a device-mapper target has a sufficiently large ti->len with a small region_size, the division result can exceed UINT_MAX. The truncated value is then used to calculate bitset_size, causing clean_bits, sync_bits, and recovering_bits to be allocated far smaller than needed for the actual number of regions.
Subsequent log operations (log_set_bit, log_clear_bit, log_test_bit) use region indices derived from the full untruncated region space, causing out-of-bounds writes to kernel heap memory allocated by vmalloc.
This can be reproduced by creating a mirror target whose region_count overflows 32 bits:
dmsetup create bigzero --table '0 8589934594 zero' dmsetup create mymirror --table '0 8589934594 mirror \ core 2 2 nosync 2 /dev/mapper/bigzero 0 \ /dev/mapper/bigzero 0'
The status output confirms the truncation (sync_count=1 instead of 4294967297, because 0x100000001 was truncated to 1):
$ dmsetup status mymirror 0 8589934594 mirror 2 254:1 254:1 1/4294967297 ...
This leads to a kernel crash in core_in_sync:
BUG: scheduling while atomic: (udev-worker)/9150/0x00000000 RIP: 0010:core_in_sync+0x14/0x30 [dm_log] CR2: 0000000000000008 Fixing recursive fault but reboot is needed!
Fix by widening the local region_count to sector_t and adding an explicit overflow check before the value is assigned to lc->region_count.
{
"affected": [],
"aliases": [
"CVE-2026-53059"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-24T17:17:18Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm log: fix out-of-bounds write due to region_count overflow\n\nThe local variable region_count in create_log_context() is declared as\nunsigned int (32-bit), but dm_sector_div_up() returns sector_t (64-bit).\nWhen a device-mapper target has a sufficiently large ti-\u003elen with a small\nregion_size, the division result can exceed UINT_MAX. The truncated\nvalue is then used to calculate bitset_size, causing clean_bits,\nsync_bits, and recovering_bits to be allocated far smaller than needed\nfor the actual number of regions.\n\nSubsequent log operations (log_set_bit, log_clear_bit, log_test_bit) use\nregion indices derived from the full untruncated region space, causing\nout-of-bounds writes to kernel heap memory allocated by vmalloc.\n\nThis can be reproduced by creating a mirror target whose region_count\noverflows 32 bits:\n\n dmsetup create bigzero --table \u00270 8589934594 zero\u0027\n dmsetup create mymirror --table \u00270 8589934594 mirror \\\n core 2 2 nosync 2 /dev/mapper/bigzero 0 \\\n /dev/mapper/bigzero 0\u0027\n\nThe status output confirms the truncation (sync_count=1 instead of\n4294967297, because 0x100000001 was truncated to 1):\n\n $ dmsetup status mymirror\n 0 8589934594 mirror 2 254:1 254:1 1/4294967297 ...\n\nThis leads to a kernel crash in core_in_sync:\n\n BUG: scheduling while atomic: (udev-worker)/9150/0x00000000\n RIP: 0010:core_in_sync+0x14/0x30 [dm_log]\n CR2: 0000000000000008\n Fixing recursive fault but reboot is needed!\n\nFix by widening the local region_count to sector_t and adding an\nexplicit overflow check before the value is assigned to lc-\u003eregion_count.",
"id": "GHSA-vj88-ppr4-hj46",
"modified": "2026-06-30T03:37:13Z",
"published": "2026-06-24T18:32:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53059"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-53059"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492277"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/12bd5b88e91a02785244ff1d20fb157e96e9cdc8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3ec74da927b4e171a6fc0e77b1188ba4d019af51"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/44ab8875ae4a2842bde2d756bed195d375e0debb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4ec8323b9f0764a14d532b1ae9b87f8a9fecb867"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b455903eed4558982be0811f5b7f44f6bbc4ff57"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c20e36b7631d83e7535877f08af8b0af72c44b1a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d4ac87567f86a55c3c92e9a5144dcd943a9772a1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/defe483e47173768c227532694dc78cb65db5f09"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53059.json"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VJ9M-PC78-2RVQ
Vulnerability from github – Published: 2022-05-14 01:22 – Updated: 2022-05-14 01:22Integer overflow leading to Heap buffer overflow in JBIG2Stream.cc in pdftocairo in Poppler before 0.56 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PDF document.
{
"affected": [],
"aliases": [
"CVE-2017-9776"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-06-22T21:29:00Z",
"severity": "HIGH"
},
"details": "Integer overflow leading to Heap buffer overflow in JBIG2Stream.cc in pdftocairo in Poppler before 0.56 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PDF document.",
"id": "GHSA-vj9m-pc78-2rvq",
"modified": "2022-05-14T01:22:25Z",
"published": "2022-05-14T01:22:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9776"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2550"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2551"
},
{
"type": "WEB",
"url": "https://bugs.freedesktop.org/show_bug.cgi?id=101541"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4079"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99240"
}
],
"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"
}
]
}
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.