{
  "cveId": "CVE-2021-32810",
  "url": "https://patchblox.com/security/cve/CVE-2021-32810",
  "summary": "CVE-2021-32810 is fixed in 4 products on 1 platform, first by RHSA-2021:3755, released October 11, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "firefox: crossbeam-deque is a package of work-stealing deques for building taskschedulers when programming in Rust",
  "description": "crossbeam-deque is a package of work-stealing deques for building taskschedulers when programming in Rust. In versions prior to 0.7.4 and 0.8.0,the result of the race condition is that one or more tasks in the workerqueue can be popped twice instead of other tasks that are forgotten andnever popped. If tasks are allocated on the heap, this can cause doublefree and a memory leak. If not, this still can cause a logical bug. Cratesusing \u0060Stealer::steal\u0060, \u0060Stealer::steal_batch\u0060, or\u0060Stealer::steal_batch_and_pop\u0060 are affected by this issue. This has beenfixed in crossbeam-deque 0.8.1 and 0.7.4.",
  "published": "2021-08-02T12:15:00Z",
  "severity": "Medium",
  "cvss": 9.8,
  "epss": 0.01907,
  "epssPercentile": 0.799,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "firefox",
      "release": "RHEL 8",
      "fixedVersion": "0:91.2.0-4.el8_4",
      "fix": "RHSA-2021:3755",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3755",
      "released": "2021-10-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "93.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox 93.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-93.0-build1-0ubuntu0.18.04.1",
      "released": "2021-11-02T18:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "93.0\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "firefox 93.0\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-93.0-build1-0ubuntu0.20.04.1",
      "released": "2021-11-02T18:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "93.0\u002Bbuild1-0ubuntu2",
      "fix": "firefox 93.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-firefox-93.0-build1-0ubuntu2",
      "released": "2026-01-16T01:42:22Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "93.0\u002Bbuild1-0ubuntu2",
      "fix": "firefox 93.0\u002Bbuild1-0ubuntu2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-firefox-93.0-build1-0ubuntu2",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "ol 8",
      "fixedVersion": "0:91.2.0-4.0.1.el8_4",
      "fix": "ELSA-2021-3755",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3755",
      "released": "2021-10-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "93.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox-geckodriver 93.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-geckodriver-93.0-build1-0ubuntu0.18.04.1",
      "released": "2021-11-02T18:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "93.0\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "firefox-geckodriver 93.0\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-geckodriver-93.0-build1-0ubuntu0.20.04.1",
      "released": "2021-11-02T18:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "93.0\u002Bbuild1-0ubuntu0.18.04.1",
      "fix": "firefox-mozsymbols 93.0\u002Bbuild1-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-93.0-build1-0ubuntu0.18.04.1",
      "released": "2021-11-02T18:15:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "93.0\u002Bbuild1-0ubuntu0.20.04.1",
      "fix": "firefox-mozsymbols 93.0\u002Bbuild1-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-mozsymbols-93.0-build1-0ubuntu0.20.04.1",
      "released": "2021-11-02T18:15:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "RHEL 8",
      "fixedVersion": "0:91.2.0-1.el8_4",
      "fix": "RHSA-2021:3838",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3838",
      "released": "2021-10-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "thunderbird",
      "release": "ol 8",
      "fixedVersion": "0:91.2.0-1.0.1.el8_4",
      "fix": "ELSA-2021-3838",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3838",
      "released": "2021-10-15T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}