github - ghsa-89wc-v8x9-wrv5

ghsa-89wc-v8x9-wrv5

Vulnerability from github

Published

2022-01-22 00:00

Modified

2022-01-29 00:01

Details

A vulnerability was found in the Linux kernel's KVM subsystem in arch/x86/kvm/lapic.c kvm_free_lapic when a failure allocation was detected. In this flaw the KVM subsystem may crash the kernel due to mishandling of memory errors that happens during VCPU construction, which allows an attacker with special user privilege to cause a denial of service. This flaw affects kernel versions prior to 5.15 rc7.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-4032"
  ],
  "database_specific": {
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-01-21T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was found in the Linux kernel\u0027s KVM subsystem in arch/x86/kvm/lapic.c kvm_free_lapic when a failure allocation was detected. In this flaw the KVM subsystem may crash the kernel due to mishandling of memory errors that happens during VCPU construction, which allows an attacker with special user privilege to cause a denial of service. This flaw affects kernel versions prior to 5.15 rc7.",
  "id": "GHSA-89wc-v8x9-wrv5",
  "modified": "2022-01-29T00:01:10Z",
  "published": "2022-01-22T00:00:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4032"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2027403"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f7d8a19f9a056a05c5c509fa65af472a322abfee"
    },
    {
      "type": "WEB",
      "url": "https://lkml.org/lkml/2021/9/8/587"
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  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-4032 (GCVE-0-2021-4032)

Vulnerability from cvelistv5

Published

2022-01-21 18:17

Modified

2024-08-03 17:16

Severity ?

CWE

CWE-459

Summary

A vulnerability was found in the Linux kernel's KVM subsystem in arch/x86/kvm/lapic.c kvm_free_lapic when a failure allocation was detected. In this flaw the KVM subsystem may crash the kernel due to mishandling of memory errors that happens during VCPU construction, which allows an attacker with special user privilege to cause a denial of service. This flaw affects kernel versions prior to 5.15 rc7.

References

►

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=2027403	x_refsource_MISC
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f7d8a19f9a056a05c5c509fa65af472a322abfee	x_refsource_MISC
	https://lkml.org/lkml/2021/9/8/587	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	kernel	Version: kernel 5.15 rc7

Show details on NVD website

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