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CVE-2021-47376

🗓️ 21 May 2024 15:23:15Reported by LinuxType

Linux kernel vulnerability fixed by adding oversize check before kvcalloc() function, preventing oversized calls to kvmalloc() and triggering warning when allocation is larger than kmalloc() supports.

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Reporter	Title	Published	Views	Family All 29
Debian CVE	CVE-2021-47376	21 May 202415:15	–	debiancve
OSV	UBUNTU-CVE-2021-47376	21 May 202415:15	–	osv
OSV	CVE-2021-47376	21 May 202415:15	–	osv
OSV	SUSE-SU-2024:2011-1 Security update for the Linux Kernel	12 Jun 202416:39	–	osv
OSV	SUSE-SU-2024:2189-1 Security update for the Linux Kernel	25 Jun 202406:34	–	osv
OSV	SUSE-SU-2024:2190-1 Security update for the Linux Kernel	25 Jun 202408:50	–	osv
OSV	SUSE-SU-2024:2008-1 Security update for the Linux Kernel	12 Jun 202411:33	–	osv
OSV	SUSE-SU-2024:2019-1 Security update for the Linux Kernel	13 Jun 202410:40	–	osv
NVD	CVE-2021-47376	21 May 202415:15	–	nvd
Vulnrichment	CVE-2021-47376 bpf: Add oversize check before call kvcalloc()	21 May 202415:03	–	vulnrichment

Vulners

Node

linux linux_kernelRange5.4.0–5.4.150

linux linux_kernelRange5.5.0–5.10.70

linux linux_kernelRange5.11.0–5.14.9

linux linux_kernelRange5.15.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/verifier.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "93937596e0652d50973f9dc944fea1694ac8cdfd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "6345a0bee80139ea00a341c4202ebfd1534b5eb0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "b5fe7cdfee5901ce5513c30e554d51536e003bde",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "0e6491b559704da720f6da09dd0a52c4df44c514",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/verifier.c"
    ],
    "versions": [
      {
        "version": "5.4.150",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.70",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.14.9",
        "lessThanOrEqual": "5.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/6345a0bee80139ea00a341c4202ebfd1534b5eb0
git	www.git.kernel.org/stable/c/0e6491b559704da720f6da09dd0a52c4df44c514
git	www.git.kernel.org/stable/c/b5fe7cdfee5901ce5513c30e554d51536e003bde
git	www.git.kernel.org/stable/c/93937596e0652d50973f9dc944fea1694ac8cdfd

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21 May 2024 15:15Current

6.8Medium risk

Vulners AI Score6.8

EPSS0.00065

SSVC