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CVE-2021-47082

🗓️ 04 Mar 2024 18:06:17Reported by LinuxType 
cve
 cve🔗 web.nvd.nist.gov👁 121 Views

Linux kernel CVE-2021-47082 resolves double free vulnerability in tun_free_netdev()

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2021-47082
4 Mar 202418:15
–attackerkb
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2022-020 (ALASKERNEL-5.10-2022-020)
14 Oct 202200:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-044 (ALASKERNEL-5.4-2023-044)
1 May 202300:00
–nessus
Tenable Nessus		EulerOS 2.0 SP10 : kernel (EulerOS-SA-2024-1570)
9 May 202400:00
–nessus
Tenable Nessus		EulerOS 2.0 SP10 : kernel (EulerOS-SA-2024-1592)
9 May 202400:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.11.1 : kernel (EulerOS-SA-2024-1734)
29 May 202400:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.11.0 : kernel (EulerOS-SA-2024-1735)
29 May 202400:00
–nessus
Tenable Nessus		EulerOS 2.0 SP11 : kernel (EulerOS-SA-2024-1788)
3 Jun 202400:00
–nessus
Tenable Nessus		EulerOS 2.0 SP11 : kernel (EulerOS-SA-2024-1800)
3 Jun 202400:00
–nessus
Tenable Nessus		EulerOS 2.0 SP9 : kernel (EulerOS-SA-2024-1937)
16 Jul 202400:00
–nessus
Rows per page
NVD
Vulners
CNA
Node
linuxlinux_kernelRange<4.19.280
OR
linuxlinux_kernelRange4.20–5.4.240
OR
linuxlinux_kernelRange5.5–5.10.136
OR
linuxlinux_kernelRange5.11–5.15.12
OR
linuxlinux_kernelMatch5.16rc1
OR
linuxlinux_kernelMatch5.16rc2
OR
linuxlinux_kernelMatch5.16rc3
OR
linuxlinux_kernelMatch5.16rc4
OR
linuxlinux_kernelMatch5.16rc5
OR
linuxlinux_kernelMatch5.16rc6
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/tun.c"
    ],
    "versions": [
      {
        "version": "662ca437e714caaab855b12415d6ffd815985bc0",
        "lessThan": "8eb43d635950e27c29f1e9e49a23b31637f37757",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "662ca437e714caaab855b12415d6ffd815985bc0",
        "lessThan": "0c0e566f0387490d16f166808c72e9c772027681",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "662ca437e714caaab855b12415d6ffd815985bc0",
        "lessThan": "a01a4e9f5dc93335c716fa4023b1901956e8c904",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "662ca437e714caaab855b12415d6ffd815985bc0",
        "lessThan": "3cb5ae77799e8ed6ec3fec0b6b4cd07f01650cc5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "662ca437e714caaab855b12415d6ffd815985bc0",
        "lessThan": "158b515f703e75e7d68289bf4d98c664e1d632df",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a81a02460bdf054ca0c60c5aed29941f7134092d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6fc265f7a86d81e052508d03da555188f5882c3e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3.10.16",
        "lessThan": "3.11",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "3.11.5",
        "lessThan": "3.12",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/tun.c"
    ],
    "versions": [
      {
        "version": "3.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.280",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.240",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.136",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.12",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.16",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 May 2026 15:19Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.17.8
EPSS0.00038
SSVC
CWE-415
linux kernelcve-2021-47082vulnerabilitytun_free_netdevdouble freesecurity
121