CWE-122
AllowedHeap-based Buffer Overflow
Abstraction: Variant · Status: Draft
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
4146 vulnerabilities reference this CWE, most recent first.
GHSA-8XXH-R5GQ-2WXG
Vulnerability from github – Published: 2024-02-15 06:31 – Updated: 2024-08-28 21:31Handlers for *_CFG_PAGE read / write ioctls in the mpr, mps, and mpt drivers allocated a buffer of a caller-specified size, but copied to it a fixed size header. Other heap content would be overwritten if the specified size was too small.
Users with access to the mpr, mps or mpt device node may overwrite heap data, potentially resulting in privilege escalation. Note that the device node is only accessible to root and members of the operator group.
{
"affected": [],
"aliases": [
"CVE-2022-23086"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-15T05:15:09Z",
"severity": "CRITICAL"
},
"details": "Handlers for *_CFG_PAGE read / write ioctls in the mpr, mps, and mpt drivers allocated a buffer of a caller-specified size, but copied to it a fixed size header. Other heap content would be overwritten if the specified size was too small.\n\nUsers with access to the mpr, mps or mpt device node may overwrite heap data, potentially resulting in privilege escalation. Note that the device node is only accessible to root and members of the operator group.",
"id": "GHSA-8xxh-r5gq-2wxg",
"modified": "2024-08-28T21:31:25Z",
"published": "2024-02-15T06:31:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23086"
},
{
"type": "WEB",
"url": "https://security.freebsd.org/advisories/FreeBSD-SA-22:06.ioctl.asc"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20240419-0002"
}
],
"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-92PJ-VH86-9J44
Vulnerability from github – Published: 2024-03-19 09:30 – Updated: 2024-03-19 09:30Dell PowerEdge Server BIOS contains a heap-based buffer overflow vulnerability. A local high privileged attacker could potentially exploit this vulnerability to write to otherwise unauthorized memory.
{
"affected": [],
"aliases": [
"CVE-2024-22453"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-19T08:15:06Z",
"severity": "HIGH"
},
"details": "Dell PowerEdge Server BIOS contains a heap-based buffer overflow vulnerability. A local high privileged attacker could potentially exploit this vulnerability to write to otherwise unauthorized memory.",
"id": "GHSA-92pj-vh86-9j44",
"modified": "2024-03-19T09:30:33Z",
"published": "2024-03-19T09:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-22453"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-us/000223209/dsa-2024-105-security-update-for-dell-poweredge-server-bios-for-a-heap-based-buffer-overflow-vulnerability"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-938P-4C9X-3MPW
Vulnerability from github – Published: 2025-05-13 18:30 – Updated: 2025-05-13 18:30Heap-based buffer overflow in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2025-29967"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-13T17:15:57Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-938p-4c9x-3mpw",
"modified": "2025-05-13T18:30:55Z",
"published": "2025-05-13T18:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29967"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29967"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9397-6R66-QMGQ
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2025-49717"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:15:59Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.",
"id": "GHSA-9397-6r66-qmgq",
"modified": "2025-07-08T18:31:49Z",
"published": "2025-07-08T18:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49717"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49717"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-93C5-V3V3-MPQ3
Vulnerability from github – Published: 2022-05-24 17:02 – Updated: 2023-01-19 18:30A vulnerability was found in marvell wifi chip driver in Linux kernel. There is a heap-based buffer overflow in lbs_ibss_join_existing function in drivers/net/wireless/marvell/libertas/cfg.c allows remote attackers to cause a denial of service(system crash) or possibly execute arbitrary code. When STA connects to AP, lbs_ibss_join_existing function will be called for STA.
{
"affected": [],
"aliases": [
"CVE-2019-14896"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-11-27T09:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in marvell wifi chip driver in Linux kernel. There is a heap-based buffer overflow in lbs_ibss_join_existing function in drivers/net/wireless/marvell/libertas/cfg.c allows remote attackers to cause a denial of service(system crash) or possibly execute arbitrary code. When STA connects to AP, lbs_ibss_join_existing function will be called for STA.",
"id": "GHSA-93c5-v3v3-mpq3",
"modified": "2023-01-19T18:30:21Z",
"published": "2022-05-24T17:02:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-14896"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4228-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4228-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4227-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4227-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4226-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4225-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4225-1"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20200103-0001"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MN6MLCN7G7VFTSXSZYXKXEFCUMFBUAXQ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D4ISVNIC44SOGXTUBCIZFSUNQJ5LRKNZ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MN6MLCN7G7VFTSXSZYXKXEFCUMFBUAXQ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4ISVNIC44SOGXTUBCIZFSUNQJ5LRKNZ"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14896"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1774875"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2019-14896"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:3548"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/155879/Kernel-Live-Patch-Security-Notice-LSN-0061-1.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.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-93CX-F9GG-Q2WG
Vulnerability from github – Published: 2024-10-30 00:31 – Updated: 2025-02-03 18:30A maliciously crafted MODEL file when parsed in libodxdll.dll through Autodesk AutoCAD can force a Heap-Based Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, write sensitive data, or execute arbitrary code in the context of the current process.
{
"affected": [],
"aliases": [
"CVE-2024-8594"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-29T22:15:07Z",
"severity": "HIGH"
},
"details": "A maliciously crafted MODEL file when parsed in libodxdll.dll through Autodesk AutoCAD can force a Heap-Based Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, write sensitive data, or execute arbitrary code in the context of the current process.",
"id": "GHSA-93cx-f9gg-q2wg",
"modified": "2025-02-03T18:30:38Z",
"published": "2024-10-30T00:31:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8594"
},
{
"type": "WEB",
"url": "https://autodesk.com/trust/security-advisories/adsk-sa-2024-0019"
},
{
"type": "WEB",
"url": "https://www.autodesk.com/trust/security-advisories/adsk-sa-2024-0019"
}
],
"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-93GX-49QX-8F59
Vulnerability from github – Published: 2022-05-24 17:36 – Updated: 2022-05-24 17:36A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
{
"affected": [],
"aliases": [
"CVE-2020-25712"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-12-15T17:15:00Z",
"severity": "HIGH"
},
"details": "A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"id": "GHSA-93gx-49qx-8f59",
"modified": "2022-05-24T17:36:28Z",
"published": "2022-05-24T17:36:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25712"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1887276"
},
{
"type": "WEB",
"url": "https://lists.x.org/archives/xorg-announce/2020-December/003066.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-93VJ-795W-GH3C
Vulnerability from github – Published: 2024-06-11 21:32 – Updated: 2024-06-20 15:31Heap buffer overflow in Tab Groups in Google Chrome prior to 126.0.6478.54 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2024-5835"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-11T21:15:54Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in Tab Groups in Google Chrome prior to 126.0.6478.54 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-93vj-795w-gh3c",
"modified": "2024-06-20T15:31:11Z",
"published": "2024-06-11T21:32:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5835"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/341991535"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7VXA32LXMNK3DSK3JBRLTBPFUH7LTODU"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MPU7AB53QQVNTBPGRMJRY5SXJNYWW3FX"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-942X-H2H3-8WXM
Vulnerability from github – Published: 2025-01-30 06:30 – Updated: 2025-02-07 18:31In some cases, the ktrace facility will log the contents of kernel structures to userspace. In one such case, ktrace dumps a variable-sized sockaddr to userspace. There, the full sockaddr is copied, even when it is shorter than the full size. This can result in up to 14 uninitialized bytes of kernel memory being copied out to userspace.
It is possible for an unprivileged userspace program to leak 14 bytes of a kernel heap allocation to userspace.
{
"affected": [],
"aliases": [
"CVE-2025-0662"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-30T05:15:10Z",
"severity": "MODERATE"
},
"details": "In some cases, the ktrace facility will log the contents of kernel structures to userspace. In one such case, ktrace dumps a variable-sized sockaddr to userspace. There, the full sockaddr is copied, even when it is shorter than the full size. This can result in up to 14 uninitialized bytes of kernel memory being copied out to userspace.\n\nIt is possible for an unprivileged userspace program to leak 14 bytes of a kernel heap allocation to userspace.",
"id": "GHSA-942x-h2h3-8wxm",
"modified": "2025-02-07T18:31:17Z",
"published": "2025-01-30T06:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0662"
},
{
"type": "WEB",
"url": "https://security.freebsd.org/advisories/FreeBSD-SA-25:04.ktrace.asc"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20250207-0006"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-947V-4HFW-4P67
Vulnerability from github – Published: 2022-05-13 01:04 – Updated: 2022-05-13 01:04The Gluster file system through versions 4.1.4 and 3.12 is vulnerable to a heap-based buffer overflow in the '__server_getspec' function via the 'gf_getspec_req' RPC message. A remote authenticated attacker could exploit this to cause a denial of service or other potential unspecified impact.
{
"affected": [],
"aliases": [
"CVE-2018-14653"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-31T19:29:00Z",
"severity": "HIGH"
},
"details": "The Gluster file system through versions 4.1.4 and 3.12 is vulnerable to a heap-based buffer overflow in the \u0027__server_getspec\u0027 function via the \u0027gf_getspec_req\u0027 RPC message. A remote authenticated attacker could exploit this to cause a denial of service or other potential unspecified impact.",
"id": "GHSA-947v-4hfw-4p67",
"modified": "2022-05-13T01:04:24Z",
"published": "2022-05-13T01:04:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14653"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:3431"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:3432"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:3470"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2018-14653"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1633431"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14653"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00000.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201904-06"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation MIT-10
Strategy: Environment Hardening
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-11
Strategy: Environment Hardening
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation
Implement and perform bounds checking on input.
Mitigation
Strategy: Libraries or Frameworks
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
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.