Common Weakness Enumeration

CWE-362

Allowed-with-Review

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Abstraction: Class · Status: Draft

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

2902 vulnerabilities reference this CWE, most recent first.

GHSA-9567-MJRH-X6XX

Vulnerability from github – Published: 2023-04-11 21:30 – Updated: 2023-04-11 21:30
VLAI
Details

Windows DNS Server Remote Code Execution Vulnerability

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-28308"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-04-11T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Windows DNS Server Remote Code Execution Vulnerability",
  "id": "GHSA-9567-mjrh-x6xx",
  "modified": "2023-04-11T21:30:58Z",
  "published": "2023-04-11T21:30:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28308"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28308"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-959M-9W2W-7JXC

Vulnerability from github – Published: 2026-02-14 18:30 – Updated: 2026-07-14 15:31
VLAI
Details

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

dmaengine: mmp_pdma: Fix race condition in mmp_pdma_residue()

Add proper locking in mmp_pdma_residue() to prevent use-after-free when accessing descriptor list and descriptor contents.

The race occurs when multiple threads call tx_status() while the tasklet on another CPU is freeing completed descriptors:

CPU 0 CPU 1 ----- ----- mmp_pdma_tx_status() mmp_pdma_residue() -> NO LOCK held list_for_each_entry(sw, ..) DMA interrupt dma_do_tasklet() -> spin_lock(&desc_lock) list_move(sw->node, ...) spin_unlock(&desc_lock) | dma_pool_free(sw) <- FREED! -> access sw->desc <- UAF!

This issue can be reproduced when running dmatest on the same channel with multiple threads (threads_per_chan > 1).

Fix by protecting the chain_running list iteration and descriptor access with the chan->desc_lock spinlock.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-71221"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-14T17:15:54Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: mmp_pdma: Fix race condition in mmp_pdma_residue()\n\nAdd proper locking in mmp_pdma_residue() to prevent use-after-free when\naccessing descriptor list and descriptor contents.\n\nThe race occurs when multiple threads call tx_status() while the tasklet\non another CPU is freeing completed descriptors:\n\nCPU 0                              CPU 1\n-----                              -----\nmmp_pdma_tx_status()\nmmp_pdma_residue()\n  -\u003e NO LOCK held\n     list_for_each_entry(sw, ..)\n                                   DMA interrupt\n                                   dma_do_tasklet()\n                                     -\u003e spin_lock(\u0026desc_lock)\n                                        list_move(sw-\u003enode, ...)\n                                        spin_unlock(\u0026desc_lock)\n  |                                     dma_pool_free(sw) \u003c- FREED!\n  -\u003e access sw-\u003edesc \u003c- UAF!\n\nThis issue can be reproduced when running dmatest on the same channel with\nmultiple threads (threads_per_chan \u003e 1).\n\nFix by protecting the chain_running list iteration and descriptor access\nwith the chan-\u003edesc_lock spinlock.",
  "id": "GHSA-959m-9w2w-7jxc",
  "modified": "2026-07-14T15:31:39Z",
  "published": "2026-02-14T18:30:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71221"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f0e0e2d9e752570041e95fd04635e2580097819"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f665b3c3d9a168410251f27a5d019b7bf93185c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a143545855bc2c6e1330f6f57ae375ac44af00a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfb5e05227745de43b7fd589721817a4337c970d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eba0c75670c022cb1f948600db972524bcfe8166"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc023b8fab057f0c910856ff36d3e12a30b7af4a"
    }
  ],
  "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-95FH-3XQ2-RFCX

Vulnerability from github – Published: 2022-05-24 19:17 – Updated: 2022-05-24 19:17
VLAI
Details

The Rest API component of TIBCO Software Inc.'s TIBCO JasperReports Server, TIBCO JasperReports Server, TIBCO JasperReports Server, TIBCO JasperReports Server, TIBCO JasperReports Server - Community Edition, TIBCO JasperReports Server - Developer Edition, TIBCO JasperReports Server for AWS Marketplace, TIBCO JasperReports Server for ActiveMatrix BPM, and TIBCO JasperReports Server for Microsoft Azure contain a race condition that allows a low privileged authenticated attacker via the REST API to obtain read access to temporary objects created by other users on the affected system. Affected releases are TIBCO Software Inc.'s TIBCO JasperReports Server: versions 7.2.1 and below, TIBCO JasperReports Server: versions 7.5.0 and 7.5.1, TIBCO JasperReports Server: version 7.8.0, TIBCO JasperReports Server: version 7.9.0, TIBCO JasperReports Server - Community Edition: versions 7.8.0 and below, TIBCO JasperReports Server - Developer Edition: versions 7.9.0 and below, TIBCO JasperReports Server for AWS Marketplace: versions 7.9.0 and below, TIBCO JasperReports Server for ActiveMatrix BPM: versions 7.9.0 and below, and TIBCO JasperReports Server for Microsoft Azure: version 7.8.0.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-35494"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-12T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The Rest API component of TIBCO Software Inc.\u0027s TIBCO JasperReports Server, TIBCO JasperReports Server, TIBCO JasperReports Server, TIBCO JasperReports Server, TIBCO JasperReports Server - Community Edition, TIBCO JasperReports Server - Developer Edition, TIBCO JasperReports Server for AWS Marketplace, TIBCO JasperReports Server for ActiveMatrix BPM, and TIBCO JasperReports Server for Microsoft Azure contain a race condition that allows a low privileged authenticated attacker via the REST API to obtain read access to temporary objects created by other users on the affected system. Affected releases are TIBCO Software Inc.\u0027s TIBCO JasperReports Server: versions 7.2.1 and below, TIBCO JasperReports Server: versions 7.5.0 and 7.5.1, TIBCO JasperReports Server: version 7.8.0, TIBCO JasperReports Server: version 7.9.0, TIBCO JasperReports Server - Community Edition: versions 7.8.0 and below, TIBCO JasperReports Server - Developer Edition: versions 7.9.0 and below, TIBCO JasperReports Server for AWS Marketplace: versions 7.9.0 and below, TIBCO JasperReports Server for ActiveMatrix BPM: versions 7.9.0 and below, and TIBCO JasperReports Server for Microsoft Azure: version 7.8.0.",
  "id": "GHSA-95fh-3xq2-rfcx",
  "modified": "2022-05-24T19:17:17Z",
  "published": "2022-05-24T19:17:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-35494"
    },
    {
      "type": "WEB",
      "url": "https://www.tibco.com/services/support/advisories"
    },
    {
      "type": "WEB",
      "url": "https://www.tibco.com/support/advisories/2021/10/tibco-security-advisory-october-12-2021-tibco-jasperreports-server-2021-35494"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-95G2-C79H-GR6C

Vulnerability from github – Published: 2022-03-17 00:00 – Updated: 2022-03-24 00:00
VLAI
Details

In gasket_alloc_coherent_memory of gasket_page_table.c, there is a possible memory corruption due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-151455484References: N/A

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-39735"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-16T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In gasket_alloc_coherent_memory of gasket_page_table.c, there is a possible memory corruption due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-151455484References: N/A",
  "id": "GHSA-95g2-c79h-gr6c",
  "modified": "2022-03-24T00:00:33Z",
  "published": "2022-03-17T00:00:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39735"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/pixel/2022-03-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-95W7-9JC2-96GF

Vulnerability from github – Published: 2022-05-17 00:18 – Updated: 2022-05-17 00:18
VLAI
Details

Race condition in the Zone-Based Firewall in Cisco IOS 15.1 and 15.2, when IPS policies are configured, allows remote attackers to cause a denial of service (device crash) by sending IPv6 packets, aka Bug ID CSCtk53534.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2012-1324"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2012-05-03T20:55:00Z",
    "severity": "HIGH"
  },
  "details": "Race condition in the Zone-Based Firewall in Cisco IOS 15.1 and 15.2, when IPS policies are configured, allows remote attackers to cause a denial of service (device crash) by sending IPv6 packets, aka Bug ID CSCtk53534.",
  "id": "GHSA-95w7-9jc2-96gf",
  "modified": "2022-05-17T00:18:08Z",
  "published": "2022-05-17T00:18:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-1324"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/75414"
    },
    {
      "type": "WEB",
      "url": "http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-3TCAVS.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-9623-MQMM-5RCF

Vulnerability from github – Published: 2024-08-21 15:30 – Updated: 2026-01-19 06:30
VLAI
Summary
Undertow vulnerable to Race Condition
Details

A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the same StringBuilder instance, potentially leading to information leakage between requests or responses. In some cases, a value from a previous request or response may be erroneously reused, which could lead to unintended data exposure. This issue primarily results in errors and connection termination but creates a risk of data leakage in multi-request environments.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.undertow:undertow-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.36.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.undertow:undertow-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.3.0.Alpha1"
            },
            {
              "fixed": "2.3.17.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-7885"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-08-21T20:08:37Z",
    "nvd_published_at": "2024-08-21T14:15:09Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the same StringBuilder instance, potentially leading to information leakage between requests or responses. In some cases, a value from a previous request or response may be erroneously reused, which could lead to unintended data exposure. This issue primarily results in errors and connection termination but creates a risk of data leakage in multi-request environments.",
  "id": "GHSA-9623-mqmm-5rcf",
  "modified": "2026-01-19T06:30:27Z",
  "published": "2024-08-21T15:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7885"
    },
    {
      "type": "WEB",
      "url": "https://github.com/undertow-io/undertow/commit/ce5182c37376982ef0abee34fce0d8c0aab0fab8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/undertow-io/undertow/commit/80c125e09068ac52ed0a9acde266ef12f8ed7ae1"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20241011-0004"
    },
    {
      "type": "WEB",
      "url": "https://github.com/undertow-io/undertow/blob/182e4ca1543c52f438b0244c930dca3d8b6e68e3/core/src/main/java/io/undertow/server/protocol/proxy/ProxyProtocolReadListener.java"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/undertow-io/undertow"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2305290"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2024-7885"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:0743"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2025:16667"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:8080"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:7736"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:7735"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:7442"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:7441"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6883"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:6508"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:11023"
    }
  ],
  "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"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Undertow vulnerable to Race Condition"
}

GHSA-964R-R86J-R398

Vulnerability from github – Published: 2023-05-09 18:30 – Updated: 2024-04-04 03:56
VLAI
Details

Windows Graphics Component Elevation of Privilege Vulnerability

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-24899"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-09T18:15:11Z",
    "severity": "HIGH"
  },
  "details": "Windows Graphics Component Elevation of Privilege Vulnerability",
  "id": "GHSA-964r-r86j-r398",
  "modified": "2024-04-04T03:56:09Z",
  "published": "2023-05-09T18:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24899"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24899"
    }
  ],
  "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-965F-G96X-3W5J

Vulnerability from github – Published: 2023-05-26 18:30 – Updated: 2024-04-04 04:21
VLAI
Details

The Gallery app has the risk of hijacking attacks. Successful exploitation of this vulnerability may cause download failures and affect product availability.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-31225"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-26T17:15:17Z",
    "severity": "LOW"
  },
  "details": "The Gallery app has the risk of hijacking attacks. Successful exploitation of this vulnerability may cause download failures and affect product availability.",
  "id": "GHSA-965f-g96x-3w5j",
  "modified": "2024-04-04T04:21:10Z",
  "published": "2023-05-26T18:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-31225"
    },
    {
      "type": "WEB",
      "url": "https://consumer.huawei.com/en/support/bulletin/2023/5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-966J-527F-VMHP

Vulnerability from github – Published: 2022-05-17 05:23 – Updated: 2024-03-21 03:33
VLAI
Details

** DISPUTED ** Race condition in ZoneAlarm Extreme Security 9.1.507.000 on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware detection, via certain user-space memory changes during hook-handler execution, aka an argument-switch attack or a KHOBE attack. NOTE: this issue is disputed by some third parties because it is a flaw in a protection mechanism for situations where a crafted program has already begun to execute.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2010-5184"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2012-08-25T21:55:00Z",
    "severity": "MODERATE"
  },
  "details": "** DISPUTED ** Race condition in ZoneAlarm Extreme Security 9.1.507.000 on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware detection, via certain user-space memory changes during hook-handler execution, aka an argument-switch attack or a KHOBE attack.  NOTE: this issue is disputed by some third parties because it is a flaw in a protection mechanism for situations where a crafted program has already begun to execute.",
  "id": "GHSA-966j-527f-vmhp",
  "modified": "2024-03-21T03:33:10Z",
  "published": "2022-05-17T05:23:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2010-5184"
    },
    {
      "type": "WEB",
      "url": "http://archives.neohapsis.com/archives/bugtraq/2010-05/0026.html"
    },
    {
      "type": "WEB",
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2010-05/0066.html"
    },
    {
      "type": "WEB",
      "url": "http://countermeasures.trendmicro.eu/you-just-cant-trust-a-drunk"
    },
    {
      "type": "WEB",
      "url": "http://matousec.com/info/advisories/khobe-8.0-earthquake-for-windows-desktop-security-software.php"
    },
    {
      "type": "WEB",
      "url": "http://matousec.com/info/articles/khobe-8.0-earthquake-for-windows-desktop-security-software.php"
    },
    {
      "type": "WEB",
      "url": "http://www.f-secure.com/weblog/archives/00001949.html"
    },
    {
      "type": "WEB",
      "url": "http://www.osvdb.org/67660"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/39924"
    },
    {
      "type": "WEB",
      "url": "http://www.theregister.co.uk/2010/05/07/argument_switch_av_bypass"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-9682-J923-Q58C

Vulnerability from github – Published: 2022-05-24 17:35 – Updated: 2022-05-24 17:35
VLAI
Details

Slurm before 19.05.8 and 20.x before 20.02.6 exposes Sensitive Information to an Unauthorized Actor because xauth for X11 magic cookies is affected by a race condition in a read operation on the /proc filesystem.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-27746"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-922"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-11-27T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Slurm before 19.05.8 and 20.x before 20.02.6 exposes Sensitive Information to an Unauthorized Actor because xauth for X11 magic cookies is affected by a race condition in a read operation on the /proc filesystem.",
  "id": "GHSA-9682-j923-q58c",
  "modified": "2022-05-24T17:35:01Z",
  "published": "2022-05-24T17:35:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27746"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4841"
    },
    {
      "type": "WEB",
      "url": "https://www.schedmd.com/news.php"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation
Architecture and Design

In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.

Mitigation
Architecture and Design

Use thread-safe capabilities such as the data access abstraction in Spring.

Mitigation
Architecture and Design
  • Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
  • Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
Mitigation
Implementation

When using multithreading and operating on shared variables, only use thread-safe functions.

Mitigation
Implementation

Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.

Mitigation
Implementation

Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.

Mitigation
Implementation

Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.

Mitigation
Implementation

Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.

Mitigation
Implementation

Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.

Mitigation MIT-17
Architecture and Design Operation

Strategy: Environment Hardening

Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.

CAPEC-26: Leveraging Race Conditions

The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.

CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions

This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.