github - ghsa-g2j6-57v7-gm8c

ghsa-g2j6-57v7-gm8c

Vulnerability from github

Published

2023-03-30 20:20

Modified

2023-03-30 20:20

Severity ?

6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Summary

runc AppArmor bypass with symlinked /proc

Details

Impact

It was found that AppArmor, and potentially SELinux, can be bypassed when /proc inside the container is symlinked with a specific mount configuration.

Patches

Fixed in runc v1.1.5, by prohibiting symlinked /proc: https://github.com/opencontainers/runc/pull/3785

This PR fixes CVE-2023-27561 as well.

Workarounds

Avoid using an untrusted container image.

Show details on source website

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/opencontainers/runc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-28642"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-281",
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-30T20:20:23Z",
    "nvd_published_at": "2023-03-29T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nIt was found that AppArmor, and potentially SELinux, can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration.\n\n### Patches\nFixed in runc v1.1.5, by prohibiting symlinked `/proc`: https://github.com/opencontainers/runc/pull/3785\n\nThis PR fixes CVE-2023-27561 as well.\n\n### Workarounds\nAvoid using an untrusted container image.\n\n",
  "id": "GHSA-g2j6-57v7-gm8c",
  "modified": "2023-03-30T20:20:23Z",
  "published": "2023-03-30T20:20:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28642"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencontainers/runc/pull/3785"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/opencontainers/runc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "runc AppArmor bypass with symlinked /proc"
}

cve-2023-28642

Vulnerability from cvelistv5

Published

2023-03-29 18:15

Modified

2024-08-02 13:43

Severity ?

6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Summary

AppArmor bypass with symlinked /proc in runc

References

▼	URL	Tags
	https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c	x_refsource_CONFIRM
	https://github.com/opencontainers/runc/pull/3785	x_refsource_MISC

Impacted products

▼	Vendor	Product
	opencontainers	runc

Show details on NVD website

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T13:43:23.241Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c"
          },
          {
            "name": "https://github.com/opencontainers/runc/pull/3785",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/opencontainers/runc/pull/3785"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "runc",
          "vendor": "opencontainers",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.1.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.\n\n"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-281",
              "description": "CWE-281: Improper Preservation of Permissions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-03-29T18:15:48.957Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c"
        },
        {
          "name": "https://github.com/opencontainers/runc/pull/3785",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/opencontainers/runc/pull/3785"
        }
      ],
      "source": {
        "advisory": "GHSA-g2j6-57v7-gm8c",
        "discovery": "UNKNOWN"
      },
      "title": "AppArmor bypass with symlinked /proc in runc"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-28642",
    "datePublished": "2023-03-29T18:15:48.957Z",
    "dateReserved": "2023-03-20T12:19:47.209Z",
    "dateUpdated": "2024-08-02T13:43:23.241Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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