github - ghsa-v4vv-7v49-m3wg

ghsa-v4vv-7v49-m3wg

Vulnerability from github

Published

2024-09-13 09:30

Modified

2024-09-19 15:30

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

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

KVM: arm64: Make ICC_SGI_EL1 undef in the absence of a vGICv3

On a system with a GICv3, if a guest hasn't been configured with GICv3 and that the host is not capable of GICv2 emulation, a write to any of the ICC_SGI_EL1 registers is trapped to EL2.

We therefore try to emulate the SGI access, only to hit a NULL pointer as no private interrupt is allocated (no GIC, remember?).

The obvious fix is to give the guest what it deserves, in the shape of a UNDEF exception.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-46707"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-13T07:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3\n\nOn a system with a GICv3, if a guest hasn\u0027t been configured with\nGICv3 and that the host is not capable of GICv2 emulation,\na write to any of the ICC_*SGI*_EL1 registers is trapped to EL2.\n\nWe therefore try to emulate the SGI access, only to hit a NULL\npointer as no private interrupt is allocated (no GIC, remember?).\n\nThe obvious fix is to give the guest what it deserves, in the\nshape of a UNDEF exception.",
  "id": "GHSA-v4vv-7v49-m3wg",
  "modified": "2024-09-19T15:30:49Z",
  "published": "2024-09-13T09:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46707"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15818af2f7aa55eff375333cb7689df15d3f24ef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2073132f6ed3079369e857a8deb33d11bdd983bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e6245ebe7ef341639e9a7e402b3ade8ad45a19f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94d4fbad01b19ec5eab3d6b50aaec4f9db8b2d8d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/96b076e8ee5bc3a1126848c8add0f74bd30dc9d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d7629bec5c3f80bd0e3bf8103c06a2f7046bd92"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2024-46707

Vulnerability from cvelistv5

Published

2024-09-13 06:27

Modified

2024-12-19 09:21

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3 On a system with a GICv3, if a guest hasn't been configured with GICv3 and that the host is not capable of GICv2 emulation, a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2. We therefore try to emulate the SGI access, only to hit a NULL pointer as no private interrupt is allocated (no GIC, remember?). The obvious fix is to give the guest what it deserves, in the shape of a UNDEF exception.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/15818af2f7aa55eff375333cb7689df15d3f24ef
	https://git.kernel.org/stable/c/96b076e8ee5bc3a1126848c8add0f74bd30dc9d1
	https://git.kernel.org/stable/c/94d4fbad01b19ec5eab3d6b50aaec4f9db8b2d8d
	https://git.kernel.org/stable/c/9d7629bec5c3f80bd0e3bf8103c06a2f7046bd92
	https://git.kernel.org/stable/c/2073132f6ed3079369e857a8deb33d11bdd983bc
	https://git.kernel.org/stable/c/3e6245ebe7ef341639e9a7e402b3ade8ad45a19f

Impacted products

Vendor

Product

Version

▼

Linux

Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Linux

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-46707",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T15:02:32.191138Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-29T15:02:47.903Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kvm/sys_regs.c",
            "arch/arm64/kvm/vgic/vgic.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "15818af2f7aa55eff375333cb7689df15d3f24ef",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "96b076e8ee5bc3a1126848c8add0f74bd30dc9d1",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "94d4fbad01b19ec5eab3d6b50aaec4f9db8b2d8d",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "9d7629bec5c3f80bd0e3bf8103c06a2f7046bd92",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "2073132f6ed3079369e857a8deb33d11bdd983bc",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "3e6245ebe7ef341639e9a7e402b3ade8ad45a19f",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kvm/sys_regs.c",
            "arch/arm64/kvm/vgic/vgic.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.225",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.166",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.107",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.48",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3\n\nOn a system with a GICv3, if a guest hasn\u0027t been configured with\nGICv3 and that the host is not capable of GICv2 emulation,\na write to any of the ICC_*SGI*_EL1 registers is trapped to EL2.\n\nWe therefore try to emulate the SGI access, only to hit a NULL\npointer as no private interrupt is allocated (no GIC, remember?).\n\nThe obvious fix is to give the guest what it deserves, in the\nshape of a UNDEF exception."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:21:24.022Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/15818af2f7aa55eff375333cb7689df15d3f24ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/96b076e8ee5bc3a1126848c8add0f74bd30dc9d1"
        },
        {
          "url": "https://git.kernel.org/stable/c/94d4fbad01b19ec5eab3d6b50aaec4f9db8b2d8d"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d7629bec5c3f80bd0e3bf8103c06a2f7046bd92"
        },
        {
          "url": "https://git.kernel.org/stable/c/2073132f6ed3079369e857a8deb33d11bdd983bc"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e6245ebe7ef341639e9a7e402b3ade8ad45a19f"
        }
      ],
      "title": "KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-46707",
    "datePublished": "2024-09-13T06:27:33.709Z",
    "dateReserved": "2024-09-11T15:12:18.252Z",
    "dateUpdated": "2024-12-19T09:21:24.022Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted