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().
4096 vulnerabilities reference this CWE, most recent first.
GHSA-HR3Q-MJH8-JG39
Vulnerability from github – Published: 2024-04-03 18:30 – Updated: 2024-04-03 18:30Kofax Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kofax Power PDF. 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 PDF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22926.
{
"affected": [],
"aliases": [
"CVE-2024-27340"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-03T17:15:54Z",
"severity": "HIGH"
},
"details": "Kofax Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kofax Power PDF. 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 PDF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22926.",
"id": "GHSA-hr3q-mjh8-jg39",
"modified": "2024-04-03T18:30:43Z",
"published": "2024-04-03T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27340"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-220"
}
],
"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-HR5G-GGM4-MGQR
Vulnerability from github – Published: 2022-05-17 03:12 – Updated: 2025-06-09 18:31Integer overflow in the png_set_unknown_chunks function in libpng/pngset.c in libpng before 1.5.14beta08 allows context-dependent attackers to cause a denial of service (segmentation fault and crash) via a crafted image, which triggers a heap-based buffer overflow.
{
"affected": [],
"aliases": [
"CVE-2013-7353"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-05-06T14:55:00Z",
"severity": "MODERATE"
},
"details": "Integer overflow in the png_set_unknown_chunks function in libpng/pngset.c in libpng before 1.5.14beta08 allows context-dependent attackers to cause a denial of service (segmentation fault and crash) via a crafted image, which triggers a heap-based buffer overflow.",
"id": "GHSA-hr5g-ggm4-mgqr",
"modified": "2025-06-09T18:31:54Z",
"published": "2022-05-17T03:12:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-7353"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2014-05/msg00015.html"
},
{
"type": "WEB",
"url": "http://seclists.org/oss-sec/2014/q2/83"
},
{
"type": "WEB",
"url": "http://sourceforge.net/p/libpng/bugs/199"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/67345"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HR9Q-3PW2-J87W
Vulnerability from github – Published: 2024-05-03 03:30 – Updated: 2024-05-03 03:30Tesla Model 3 bsa_server BIP Heap-based Buffer Overflow Arbitrary Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Tesla Model 3 vehicles. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.
The specific flaw exists within the bsa_server process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of an unprivileged user in a sandboxed process. Was ZDI-CAN-20737.
{
"affected": [],
"aliases": [
"CVE-2023-32157"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T02:15:20Z",
"severity": "MODERATE"
},
"details": "Tesla Model 3 bsa_server BIP Heap-based Buffer Overflow Arbitrary Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Tesla Model 3 vehicles. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the bsa_server process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of an unprivileged user in a sandboxed process. Was ZDI-CAN-20737.",
"id": "GHSA-hr9q-3pw2-j87w",
"modified": "2024-05-03T03:30:50Z",
"published": "2024-05-03T03:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32157"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-973"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-HRHR-9JRH-MR32
Vulnerability from github – Published: 2022-12-14 18:30 – Updated: 2022-12-16 21:30Binbloom 2.0 was discovered to contain a heap buffer overflow via the read_pointer function at /binbloom-master/src/helpers.c.
{
"affected": [],
"aliases": [
"CVE-2022-44910"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-14T18:15:00Z",
"severity": "HIGH"
},
"details": "Binbloom 2.0 was discovered to contain a heap buffer overflow via the read_pointer function at /binbloom-master/src/helpers.c.",
"id": "GHSA-hrhr-9jrh-mr32",
"modified": "2022-12-16T21:30:44Z",
"published": "2022-12-14T18:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-44910"
},
{
"type": "WEB",
"url": "https://github.com/yangfar/CVE/blob/main/Reference%20of%20Binbloom.md"
}
],
"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-HRHW-58X6-VQJ7
Vulnerability from github – Published: 2025-05-27 15:31 – Updated: 2025-11-03 18:31A flaw was found in GIMP when processing certain TGA image files. If a user opens one of these image files that has been specially crafted by an attacker, GIMP can be tricked into making serious memory errors, potentially leading to crashes and causing a heap buffer overflow.
{
"affected": [],
"aliases": [
"CVE-2025-48797"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-27T14:15:24Z",
"severity": "HIGH"
},
"details": "A flaw was found in GIMP when processing certain TGA image files. If a user opens one of these image files that has been specially crafted by an attacker, GIMP can be tricked into making serious memory errors, potentially leading to crashes and causing a heap buffer overflow.",
"id": "GHSA-hrhw-58x6-vqj7",
"modified": "2025-11-03T18:31:17Z",
"published": "2025-05-27T15:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48797"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9162"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9165"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9308"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9309"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9310"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9314"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9315"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9316"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9501"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:9569"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-48797"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2368558"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/gimp/-/issues/11822"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00022.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HRQR-G8JF-F28F
Vulnerability from github – Published: 2025-01-14 18:32 – Updated: 2025-01-14 18:32Windows Telephony Service Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2025-21237"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-14T18:15:36Z",
"severity": "HIGH"
},
"details": "Windows Telephony Service Remote Code Execution Vulnerability",
"id": "GHSA-hrqr-g8jf-f28f",
"modified": "2025-01-14T18:32:02Z",
"published": "2025-01-14T18:32:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21237"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21237"
}
],
"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-HV63-QC47-8J8H
Vulnerability from github – Published: 2026-06-22 18:34 – Updated: 2026-06-22 18:34A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and query logging are both enabled, logging of DS or DNSKEY replies containing unsupported algorithm or digest types can cause dnsmasq to write past the end of an internal logging buffer. A remote attacker able to supply such a DNS response may crash the dnsmasq process, resulting in denial of service.
{
"affected": [],
"aliases": [
"CVE-2026-12725"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-22T16:16:34Z",
"severity": "MODERATE"
},
"details": "A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and\nquery logging are both enabled, logging of DS or DNSKEY replies containing\nunsupported algorithm or digest types can cause dnsmasq to write past the end\nof an internal logging buffer. A remote attacker able to supply such a DNS\nresponse may crash the dnsmasq process, resulting in denial of service.",
"id": "GHSA-hv63-qc47-8j8h",
"modified": "2026-06-22T18:34:14Z",
"published": "2026-06-22T18:34:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12725"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-12725"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2490763"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HV83-F8W5-CHHV
Vulnerability from github – Published: 2022-02-19 00:01 – Updated: 2022-02-26 00:00Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.
{
"affected": [],
"aliases": [
"CVE-2022-0631"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-18T14:15:00Z",
"severity": "CRITICAL"
},
"details": "Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.",
"id": "GHSA-hv83-f8w5-chhv",
"modified": "2022-02-26T00:00:56Z",
"published": "2022-02-19T00:01:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0631"
},
{
"type": "WEB",
"url": "https://github.com/mruby/mruby/commit/47068ae07a5fa3aa9a1879cdfe98a9ce0f339299"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/9bdc49ca-6697-4adc-a785-081e1961bf40"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-HV8X-XMJG-MMXP
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-49793"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:16:55Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.",
"id": "GHSA-hv8x-xmjg-mmxp",
"modified": "2026-07-14T18:32:02Z",
"published": "2026-07-14T18:32:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49793"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49793"
}
],
"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-HV9J-PR23-X4HF
Vulnerability from github – Published: 2023-01-21 15:30 – Updated: 2023-01-30 18:30Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1225.
{
"affected": [],
"aliases": [
"CVE-2023-0433"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-21T15:15:00Z",
"severity": "HIGH"
},
"details": "Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1225.",
"id": "GHSA-hv9j-pr23-x4hf",
"modified": "2023-01-30T18:30:27Z",
"published": "2023-01-21T15:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0433"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/11977f917506d950b7e0cae558bd9189260b253b"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/ae933869-a1ec-402a-bbea-d51764c6618e"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EX6N2DB75A73MQGVW3CS4VTNPAYVM2M"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PZWIJBSQX53P7DHV77KRXJIXA4GH7XHC"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213670"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213675"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213677"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2023/Mar/17"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2023/Mar/18"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2023/Mar/21"
}
],
"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"
}
]
}
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.