Common Weakness Enumeration

CWE-415

Allowed

Double Free

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The product calls free() twice on the same memory address.

965 vulnerabilities reference this CWE, most recent first.

CVE-2018-0160 (GCVE-0-2018-0160)

Vulnerability from cvelistv5 – Published: 2018-03-28 22:00 – Updated: 2024-12-02 20:55
VLAI
Summary
A vulnerability in Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper management of memory resources, referred to as a double free. An attacker could exploit this vulnerability by sending crafted SNMP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. To exploit this vulnerability via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for an affected system. To exploit this vulnerability via SNMP Version 3, the attacker must know the user credentials for the affected system. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, have been configured to be queried over SNMP, and have Network Address Translation (NAT) enabled. Cisco Bug IDs: CSCve75818.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
http://www.securityfocus.com/bid/103575 vdb-entryx_refsource_BID
https://tools.cisco.com/security/center/content/C… x_refsource_CONFIRM
http://www.securitytracker.com/id/1040584 vdb-entryx_refsource_SECTRACK
Impacted products
Vendor Product Version
n/a Cisco IOS XE Affected: Cisco IOS XE
Date Public
2018-03-28 00:00
Show details on NVD website
To clipboard 

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CVE-2018-0101 (GCVE-0-2018-0101)

Vulnerability from cvelistv5 – Published: 2018-01-29 20:00 – Updated: 2024-12-02 21:25
VLAI
Summary
A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to an attempt to double free a region of memory when the webvpn feature is enabled on the Cisco ASA device. An attacker could exploit this vulnerability by sending multiple, crafted XML packets to a webvpn-configured interface on the affected system. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system, or cause a reload of the affected device. This vulnerability affects Cisco ASA Software that is running on the following Cisco products: 3000 Series Industrial Security Appliance (ISA), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, ASA 1000V Cloud Firewall, Adaptive Security Virtual Appliance (ASAv), Firepower 2100 Series Security Appliance, Firepower 4110 Security Appliance, Firepower 9300 ASA Security Module, Firepower Threat Defense Software (FTD). Cisco Bug IDs: CSCvg35618.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Cisco Adaptive Security Appliance Affected: Cisco Adaptive Security Appliance
Date Public
2018-01-29 00:00
Show details on NVD website
To clipboard 

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CVE-2017-10950 (GCVE-0-2017-10950)

Vulnerability from cvelistv5 – Published: 2017-08-29 13:00 – Updated: 2024-08-05 17:50
VLAI
Summary
This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Bitdefender Total Security 21.0.24.62. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within processing of the 0x8000E038 IOCTL in the bdfwfpf driver. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker could leverage this vulnerability to execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-4776.
Severity
No CVSS data available.
CWE
Assigner
zdi
References
Impacted products
Date Public
2017-08-17 00:00
Show details on NVD website
To clipboard 

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              "value": "This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Bitdefender Total Security 21.0.24.62. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within processing of the 0x8000E038 IOCTL in the bdfwfpf driver. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker could leverage this vulnerability to execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-4776."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-415-Double Free"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://zerodayinitiative.com/advisories/ZDI-17-693",
              "refsource": "MISC",
              "url": "https://zerodayinitiative.com/advisories/ZDI-17-693"
            },
            {
              "name": "100418",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/100418"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
    "assignerShortName": "zdi",
    "cveId": "CVE-2017-10950",
    "datePublished": "2017-08-29T13:00:00.000Z",
    "dateReserved": "2017-07-05T00:00:00.000Z",
    "dateUpdated": "2024-08-05T17:50:12.794Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-2288-XJPV-V6JH

Vulnerability from github – Published: 2022-04-29 02:58 – Updated: 2025-04-03 04:01
VLAI
Details

Double free vulnerability in the krb5_rd_cred function for MIT Kerberos 5 (krb5) 1.3.1 and earlier may allow local users to execute arbitrary code.

Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2004-0643"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2004-09-28T04:00:00Z",
    "severity": "MODERATE"
  },
  "details": "Double free vulnerability in the krb5_rd_cred function for MIT Kerberos 5 (krb5) 1.3.1 and earlier may allow local users to execute arbitrary code.",
  "id": "GHSA-2288-xjpv-v6jh",
  "modified": "2025-04-03T04:01:13Z",
  "published": "2022-04-29T02:58:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2004-0643"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/17159"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10267"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3322"
    },
    {
      "type": "WEB",
      "url": "http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000860"
    },
    {
      "type": "WEB",
      "url": "http://marc.info/?l=bugtraq\u0026m=109508872524753\u0026w=2"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2004-350.html"
    },
    {
      "type": "WEB",
      "url": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2004-002-dblfree.txt"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2004/dsa-543"
    },
    {
      "type": "WEB",
      "url": "http://www.gentoo.org/security/en/glsa/glsa-200409-09.xml"
    },
    {
      "type": "WEB",
      "url": "http://www.kb.cert.org/vuls/id/866472"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/11078"
    },
    {
      "type": "WEB",
      "url": "http://www.trustix.net/errata/2004/0045"
    },
    {
      "type": "WEB",
      "url": "http://www.us-cert.gov/cas/techalerts/TA04-247A.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-22MX-9R92-42G8

Vulnerability from github – Published: 2022-05-24 19:15 – Updated: 2024-03-27 15:30
VLAI
Details

When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it again.

Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2021-22945"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-09-23T13:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "When sending data to an MQTT server, libcurl \u003c= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.",
  "id": "GHSA-22mx-9r92-42g8",
  "modified": "2024-03-27T15:30:34Z",
  "published": "2022-05-24T19:15:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22945"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1269242"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202212-01"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20211029-0003"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT213183"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5197"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2022/Mar/29"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-239P-Q346-3XW9

Vulnerability from github – Published: 2022-05-17 03:04 – Updated: 2022-05-17 03:04
VLAI
Details

Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call.

Severity
7.3 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2015-8962"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-11-16T05:59:00Z",
    "severity": "HIGH"
  },
  "details": "Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call.",
  "id": "GHSA-239p-q346-3xw9",
  "modified": "2022-05-17T03:04:55Z",
  "published": "2022-05-17T03:04:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-8962"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/f3951a3709ff50990bf3e188c27d346792103432"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2016-11-01.html"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3951a3709ff50990bf3e188c27d346792103432"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/94187"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-24GV-QFV8-V7F5

Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2025-11-04 00:31
VLAI
Details

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

ext4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free

When calling ext4_force_split_extent_at() in ext4_ext_replay_update_ex(), the 'ppath' is updated but it is the 'path' that is freed, thus potentially triggering a double-free in the following process:

ext4_ext_replay_update_ex ppath = path ext4_force_split_extent_at(&ppath) ext4_split_extent_at ext4_ext_insert_extent ext4_ext_create_new_leaf ext4_ext_grow_indepth ext4_find_extent if (depth > path[0].p_maxdepth) kfree(path) ---> path First freed *orig_path = path = NULL ---> null ppath kfree(path) ---> path double-free !!!

So drop the unnecessary ppath and use path directly to avoid this problem. And use ext4_find_extent() directly to update path, avoiding unnecessary memory allocation and freeing. Also, propagate the error returned by ext4_find_extent() instead of using strange error codes.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2024-49983"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:18Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free\n\nWhen calling ext4_force_split_extent_at() in ext4_ext_replay_update_ex(),\nthe \u0027ppath\u0027 is updated but it is the \u0027path\u0027 that is freed, thus potentially\ntriggering a double-free in the following process:\n\next4_ext_replay_update_ex\n  ppath = path\n  ext4_force_split_extent_at(\u0026ppath)\n    ext4_split_extent_at\n      ext4_ext_insert_extent\n        ext4_ext_create_new_leaf\n          ext4_ext_grow_indepth\n            ext4_find_extent\n              if (depth \u003e path[0].p_maxdepth)\n                kfree(path)                 ---\u003e path First freed\n                *orig_path = path = NULL    ---\u003e null ppath\n  kfree(path)                               ---\u003e path double-free !!!\n\nSo drop the unnecessary ppath and use path directly to avoid this problem.\nAnd use ext4_find_extent() directly to update path, avoiding unnecessary\nmemory allocation and freeing. Also, propagate the error returned by\next4_find_extent() instead of using strange error codes.",
  "id": "GHSA-24gv-qfv8-v7f5",
  "modified": "2025-11-04T00:31:44Z",
  "published": "2024-10-21T18:30:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49983"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b558006d98b7b0b730027be0ee98973dd10ee0d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ff710662e8d86a63a39b334e9ca0cb10e5c14b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c0f4cc84d3a601c99bc5e6e6eb1cbda542cce95"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6367d3f04c69e2b8770b8137bd800e0784b0abbc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63adc9016917e6970fb0104ee5fd6770f02b2d80"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c26d9e53e5fbacda0732a577e97c5a5b7882aaf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a34bed978364114390162c27e50fca50791c568d"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.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-25J9-J567-GC6P

Vulnerability from github – Published: 2022-05-24 17:03 – Updated: 2022-11-14 19:00
VLAI
Details

sysstat through 12.2.0 has a double free in check_file_actlst in sa_common.c.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2019-19725"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-12-11T18:16:00Z",
    "severity": "HIGH"
  },
  "details": "sysstat through 12.2.0 has a double free in check_file_actlst in sa_common.c.",
  "id": "GHSA-25j9-j567-gc6p",
  "modified": "2022-11-14T19:00:25Z",
  "published": "2022-05-24T17:03:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19725"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sysstat/sysstat/issues/242"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00014.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202007-22"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4242-1"
    }
  ],
  "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-25PG-VQ6C-7VFW

Vulnerability from github – Published: 2022-05-24 19:05 – Updated: 2022-05-24 19:05
VLAI
Details

In memory management driver, there is a possible memory corruption due to a double free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-185195266

Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2021-0528"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-21T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "In memory management driver, there is a possible memory corruption due to a double free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-185195266",
  "id": "GHSA-25pg-vq6c-7vfw",
  "modified": "2022-05-24T19:05:42Z",
  "published": "2022-05-24T19:05:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0528"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2021-06-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-25WH-JJX3-JQ6Q

Vulnerability from github – Published: 2026-01-13 18:31 – Updated: 2026-01-13 18:31
VLAI
Details

Double free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-20863"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-13T18:16:15Z",
    "severity": "HIGH"
  },
  "details": "Double free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-25wh-jjx3-jq6q",
  "modified": "2026-01-13T18:31:09Z",
  "published": "2026-01-13T18:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20863"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20863"
    }
  ],
  "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"
    }
  ]
}
Mitigation
Architecture and Design

Choose a language that provides automatic memory management.

Mitigation
Implementation

Ensure that each allocation is freed only once. After freeing a chunk, set the pointer to NULL to ensure the pointer cannot be freed again. In complicated error conditions, be sure that clean-up routines respect the state of allocation properly. If the language is object oriented, ensure that object destructors delete each chunk of memory only once.

Mitigation
Implementation

Use a static analysis tool to find double free instances.

No CAPEC attack patterns related to this CWE.

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