Common Weakness Enumeration

CWE-772

Allowed

Missing Release of Resource after Effective Lifetime

Abstraction: Base · Status: Draft

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

591 vulnerabilities reference this CWE, most recent first.

GHSA-2277-9X7J-58F3

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-12-26 21:30
VLAI
Details

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

net:sfc: fix non-freed irq in legacy irq mode

SFC driver can be configured via modparam to work using MSI-X, MSI or legacy IRQ interrupts. In the last one, the interrupt was not properly released on module remove.

It was not freed because the flag irqs_hooked was not set during initialization in the case of using legacy IRQ.

Example of (trimmed) trace during module remove without this fix:

remove_proc_entry: removing non-empty directory 'irq/125', leaking at least '0000:3b:00.1' WARNING: CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170 ...trimmed... Call Trace: unregister_irq_proc+0xe3/0x100 free_desc+0x29/0x70 irq_free_descs+0x47/0x70 mp_unmap_irq+0x58/0x60 acpi_unregister_gsi_ioapic+0x2a/0x40 acpi_pci_irq_disable+0x78/0xb0 pci_disable_device+0xd1/0x100 efx_pci_remove+0xa1/0x1e0 [sfc] pci_device_remove+0x38/0xa0 __device_release_driver+0x177/0x230 driver_detach+0xcb/0x110 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x2a/0xb0 efx_exit_module+0x24/0xf40 [sfc] __do_sys_delete_module.constprop.0+0x171/0x280 ? exit_to_user_mode_prepare+0x83/0x1d0 do_syscall_64+0x3d/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f9f9385800b ...trimmed...

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-47283"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:16Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet:sfc: fix non-freed irq in legacy irq mode\n\nSFC driver can be configured via modparam to work using MSI-X, MSI or\nlegacy IRQ interrupts. In the last one, the interrupt was not properly\nreleased on module remove.\n\nIt was not freed because the flag irqs_hooked was not set during\ninitialization in the case of using legacy IRQ.\n\nExample of (trimmed) trace during module remove without this fix:\n\nremove_proc_entry: removing non-empty directory \u0027irq/125\u0027, leaking at least \u00270000:3b:00.1\u0027\nWARNING: CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170\n...trimmed...\nCall Trace:\n unregister_irq_proc+0xe3/0x100\n free_desc+0x29/0x70\n irq_free_descs+0x47/0x70\n mp_unmap_irq+0x58/0x60\n acpi_unregister_gsi_ioapic+0x2a/0x40\n acpi_pci_irq_disable+0x78/0xb0\n pci_disable_device+0xd1/0x100\n efx_pci_remove+0xa1/0x1e0 [sfc]\n pci_device_remove+0x38/0xa0\n __device_release_driver+0x177/0x230\n driver_detach+0xcb/0x110\n bus_remove_driver+0x58/0xd0\n pci_unregister_driver+0x2a/0xb0\n efx_exit_module+0x24/0xf40 [sfc]\n __do_sys_delete_module.constprop.0+0x171/0x280\n ? exit_to_user_mode_prepare+0x83/0x1d0\n do_syscall_64+0x3d/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7f9f9385800b\n...trimmed...",
  "id": "GHSA-2277-9x7j-58f3",
  "modified": "2024-12-26T21:30:35Z",
  "published": "2024-05-21T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47283"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81c4d1d83f88e15b26f4522a35cba6ffd8c5dfdd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d717c9135a3340ae62d1699484850bfb4112b0c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f03eeb6e0a0a0b8d617ee0a4bce729e47130036"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2286-MWVJ-8983

Vulnerability from github – Published: 2026-03-25 12:30 – Updated: 2026-05-29 15:30
VLAI
Details

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

Bluetooth: purge error queues in socket destructors

When TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued into sk_error_queue and will stay there until consumed. If userspace never gets to read the timestamps, or if the controller is removed unexpectedly, these SKBs will leak.

Fix by adding skb_queue_purge() calls for sk_error_queue in affected bluetooth destructors. RFCOMM does not currently use sk_error_queue.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-23299"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-25T11:16:25Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: purge error queues in socket destructors\n\nWhen TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued\ninto sk_error_queue and will stay there until consumed. If userspace never\ngets to read the timestamps, or if the controller is removed unexpectedly,\nthese SKBs will leak.\n\nFix by adding skb_queue_purge() calls for sk_error_queue in affected\nbluetooth destructors. RFCOMM does not currently use sk_error_queue.",
  "id": "GHSA-2286-mwvj-8983",
  "modified": "2026-05-29T15:30:26Z",
  "published": "2026-03-25T12:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23299"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21e4271e65094172aadd5beb8caea95dd0fbf6d7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b6c942a526635f5c61d2f000258e620da32d3a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3de7c10a950b36affc692d8bd2ac713852580e56"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-23F2-M2WJ-439R

Vulnerability from github – Published: 2022-05-13 01:42 – Updated: 2025-04-20 03:43
VLAI
Details

In ImageMagick 7.0.6-5, a memory leak vulnerability was found in the function ReadMATImage in coders/mat.c, which allows attackers to cause a denial of service via a crafted file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-13060"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-08-22T06:29:00Z",
    "severity": "MODERATE"
  },
  "details": "In ImageMagick 7.0.6-5, a memory leak vulnerability was found in the function ReadMATImage in coders/mat.c, which allows attackers to cause a denial of service via a crafted file.",
  "id": "GHSA-23f2-m2wj-439r",
  "modified": "2025-04-20T03:43:44Z",
  "published": "2022-05-13T01:42:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13060"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick/issues/644"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201711-07"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3681-1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/100469"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-23F5-Q32Q-XCXM

Vulnerability from github – Published: 2022-05-13 01:26 – Updated: 2022-05-13 01:26
VLAI
Details

hw/rdma/vmw/pvrdma_cmd.c in QEMU allows create_cq and create_qp memory leaks because errors are mishandled.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-20126"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-20T21:29:00Z",
    "severity": "MODERATE"
  },
  "details": "hw/rdma/vmw/pvrdma_cmd.c in QEMU allows create_cq and create_qp memory leaks because errors are mishandled.",
  "id": "GHSA-23f5-q32q-xcxm",
  "modified": "2022-05-13T01:26:37Z",
  "published": "2022-05-13T01:26:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20126"
    },
    {
      "type": "WEB",
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg02824.html"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3923-1"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00038.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2018/12/19/4"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/106298"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-244H-42J2-QQHW

Vulnerability from github – Published: 2022-05-13 01:42 – Updated: 2025-04-20 03:43
VLAI
Details

In ImageMagick 7.0.6-6, a memory leak vulnerability was found in the function formatIPTC in coders/meta.c, which allows attackers to cause a denial of service (WriteMETAImage memory consumption) via a crafted file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-13062"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-08-22T06:29:00Z",
    "severity": "MODERATE"
  },
  "details": "In ImageMagick 7.0.6-6, a memory leak vulnerability was found in the function formatIPTC in coders/meta.c, which allows attackers to cause a denial of service (WriteMETAImage memory consumption) via a crafted file.",
  "id": "GHSA-244h-42j2-qqhw",
  "modified": "2025-04-20T03:43:44Z",
  "published": "2022-05-13T01:42:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13062"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick/issues/669"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201711-07"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3681-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-24JM-J25M-87P2

Vulnerability from github – Published: 2022-05-13 01:46 – Updated: 2022-05-13 01:46
VLAI
Details

In TigerVNC 1.7.1 (SSecurityVeNCrypt.cxx SSecurityVeNCrypt::SSecurityVeNCrypt), an unauthenticated client can cause a small memory leak in the server.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-7392"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-04-01T02:59:00Z",
    "severity": "HIGH"
  },
  "details": "In TigerVNC 1.7.1 (SSecurityVeNCrypt.cxx SSecurityVeNCrypt::SSecurityVeNCrypt), an unauthenticated client can cause a small memory leak in the server.",
  "id": "GHSA-24jm-j25m-87p2",
  "modified": "2022-05-13T01:46:57Z",
  "published": "2022-05-13T01:46:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7392"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TigerVNC/tigervnc/pull/441"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:2000"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201801-13"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/97305"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-24MX-5RM6-QCM5

Vulnerability from github – Published: 2022-05-13 01:13 – Updated: 2024-11-19 21:31
VLAI
Details

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenticated attacker could create multiple connections to ceph RADOS gateway to exhaust file descriptors for ceph-radosgw service resulting in a remote denial of service.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-3821"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-27T13:29:00Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenticated attacker could create multiple connections to ceph RADOS gateway to exhaust file descriptors for ceph-radosgw service resulting in a remote denial of service.",
  "id": "GHSA-24mx-5rm6-qcm5",
  "modified": "2024-11-19T21:31:29Z",
  "published": "2022-05-13T01:13:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3821"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ceph/civetweb/pull/33"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3821"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4035-1"
    }
  ],
  "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"
    }
  ]
}

GHSA-24WX-MGHC-GCHM

Vulnerability from github – Published: 2022-05-13 01:52 – Updated: 2022-05-13 01:52
VLAI
Details

A remote attacker via undisclosed measures, may be able to exploit an F5 BIG-IP APM 13.0.0-13.1.0.7 or 12.1.0-12.1.3.5 virtual server configured with an APM per-request policy object and cause a memory leak in the APM module.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-5536"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-25T14:29:00Z",
    "severity": "HIGH"
  },
  "details": "A remote attacker via undisclosed measures, may be able to exploit an F5 BIG-IP APM 13.0.0-13.1.0.7 or 12.1.0-12.1.3.5 virtual server configured with an APM per-request policy object and cause a memory leak in the APM module.",
  "id": "GHSA-24wx-mghc-gchm",
  "modified": "2022-05-13T01:52:53Z",
  "published": "2022-05-13T01:52:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5536"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K27391542"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/104922"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-25F6-V77J-JGCF

Vulnerability from github – Published: 2022-05-13 01:48 – Updated: 2025-04-20 03:39
VLAI
Details

In LibTIFF 4.0.7, the TIFFReadDirEntryLong8Array function in libtiff/tif_dirread.c mishandles a malloc operation, which allows attackers to cause a denial of service (memory leak within the function _TIFFmalloc in tif_unix.c) via a crafted file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-9815"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-06-22T15:29:00Z",
    "severity": "MODERATE"
  },
  "details": "In LibTIFF 4.0.7, the TIFFReadDirEntryLong8Array function in libtiff/tif_dirread.c mishandles a malloc operation, which allows attackers to cause a denial of service (memory leak within the function _TIFFmalloc in tif_unix.c) via a crafted file.",
  "id": "GHSA-25f6-v77j-jgcf",
  "modified": "2025-04-20T03:39:27Z",
  "published": "2022-05-13T01:48:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9815"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3602-1"
    },
    {
      "type": "WEB",
      "url": "http://bugzilla.maptools.org/show_bug.cgi?id=2682"
    },
    {
      "type": "WEB",
      "url": "http://somevulnsofadlab.blogspot.jp/2017/06/libtiffmemory-leak-in-tiffmalloc.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/99235"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2632-H32J-6RG9

Vulnerability from github – Published: 2022-05-13 01:50 – Updated: 2022-06-28 23:43
VLAI
Summary
Missing Release of Resource after Effective Lifetime in Jenkins
Details

A denial of service vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in BasicAuthenticationFilter.java, BasicHeaderApiTokenAuthenticator.java that allows attackers to create ephemeral in-memory user records by attempting to log in using invalid credentials.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.121.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.122"
            },
            {
              "fixed": "2.138"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-1999043"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-06-28T23:43:04Z",
    "nvd_published_at": "2018-08-23T18:29:00Z",
    "severity": "HIGH"
  },
  "details": "A denial of service vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in BasicAuthenticationFilter.java, BasicHeaderApiTokenAuthenticator.java that allows attackers to create ephemeral in-memory user records by attempting to log in using invalid credentials.",
  "id": "GHSA-2632-h32j-6rg9",
  "modified": "2022-06-28T23:43:04Z",
  "published": "2022-05-13T01:50:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1999043"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jenkinsci/jenkins"
    },
    {
      "type": "WEB",
      "url": "https://jenkins.io/security/advisory/2018-08-15/#SECURITY-672"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Missing Release of Resource after Effective Lifetime in Jenkins"
}

Mitigation MIT-3
Requirements

Strategy: Language Selection

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, languages such as Java, Ruby, and Lisp perform automatic garbage collection that releases memory for objects that have been deallocated.
Mitigation
Implementation

It is good practice to be responsible for freeing all resources you allocate and to be consistent with how and where you free resources in a function. If you allocate resources that you intend to free upon completion of the function, you must be sure to free the resources at all exit points for that function including error conditions.

Mitigation MIT-47
Operation Architecture and Design

Strategy: Resource Limitation

  • Use resource-limiting settings provided by the operating system or environment. For example, when managing system resources in POSIX, setrlimit() can be used to set limits for certain types of resources, and getrlimit() can determine how many resources are available. However, these functions are not available on all operating systems.
  • When the current levels get close to the maximum that is defined for the application (see CWE-770), then limit the allocation of further resources to privileged users; alternately, begin releasing resources for less-privileged users. While this mitigation may protect the system from attack, it will not necessarily stop attackers from adversely impacting other users.
  • Ensure that the application performs the appropriate error checks and error handling in case resources become unavailable (CWE-703).
CAPEC-469: HTTP DoS

An attacker performs flooding at the HTTP level to bring down only a particular web application rather than anything listening on a TCP/IP connection. This denial of service attack requires substantially fewer packets to be sent which makes DoS harder to detect. This is an equivalent of SYN flood in HTTP. The idea is to keep the HTTP session alive indefinitely and then repeat that hundreds of times. This attack targets resource depletion weaknesses in web server software. The web server will wait to attacker's responses on the initiated HTTP sessions while the connection threads are being exhausted.