FKIE_CVE-2025-6019

Vulnerability from fkie_nvd - Published: 2025-06-19 12:15 - Updated: 2026-06-25 03:16
Severity
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A Local Privilege Escalation (LPE) vulnerability was found in libblockdev. Generally, the "allow_active" setting in Polkit permits a physically present user to take certain actions based on the session type. Due to the way libblockdev interacts with the udisks daemon, an "allow_active" user on a system may be able escalate to full root privileges on the target host. Normally, udisks mounts user-provided filesystem images with security flags like nosuid and nodev to prevent privilege escalation. However, a local attacker can create a specially crafted XFS image containing a SUID-root shell, then trick udisks into resizing it. This mounts their malicious filesystem with root privileges, allowing them to execute their SUID-root shell and gain complete control of the system.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:10796
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9320
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9321
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9322
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9323
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9324
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9325
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9326
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9327
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9328
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9878
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2025-6019
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2370051
secalert@redhat.comhttps://cdn2.qualys.com/2025/06/17/suse15-pam-udisks-lpe.txt
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/06/17/5
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/06/17/6
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/06/18/1
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/06/msg00018.html
af854a3a-2127-422b-91ae-364da2661108https://news.ycombinator.com/item?id=44325861
af854a3a-2127-422b-91ae-364da2661108https://www.bleepingcomputer.com/news/linux/new-linux-udisks-flaw-lets-attackers-get-root-on-major-linux-distros/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/storaged-project/libblockdev/",
          "defaultStatus": "unaffected",
          "packageName": "libblockdev",
          "versions": [
            {
              "lessThan": "3.3.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.0"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.2.0-4.el10_0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_els:7"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.18-5.el7_9.1",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:8::appstream",
            "cpe:/a:redhat:enterprise_linux:8::crb"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.28-7.el8_10",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_aus:8.2::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.19-13.el8_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_aus:8.4::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.24-6.el8_4",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_aus:8.6::appstream",
            "cpe:/a:redhat:rhel_e4s:8.6::appstream",
            "cpe:/a:redhat:rhel_tus:8.6::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.24-9.el8_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_aus:8.6::appstream",
            "cpe:/a:redhat:rhel_e4s:8.6::appstream",
            "cpe:/a:redhat:rhel_tus:8.6::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.24-9.el8_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_aus:8.6::appstream",
            "cpe:/a:redhat:rhel_e4s:8.6::appstream",
            "cpe:/a:redhat:rhel_tus:8.6::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.24-9.el8_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:8.8::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.28-3.el8_8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.28-14.el9_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:9.0::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.25-12.el9_0",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:9.2::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.28-5.el9_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:9.4::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "libblockdev",
          "product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.28-11.el9_4",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhivos:1"
          ],
          "defaultStatus": "unaffected",
          "packageName": "libblockdev",
          "product": "Red Hat In-Vehicle Operating System 1",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Local Privilege Escalation (LPE) vulnerability was found in libblockdev. Generally, the \"allow_active\" setting in Polkit permits a physically present user to take certain actions based on the session type. Due to the way libblockdev interacts with the udisks daemon, an \"allow_active\" user on a system may be able escalate to full root privileges on the target host. Normally, udisks mounts user-provided filesystem images with security flags like nosuid and nodev to prevent privilege escalation.  However, a local attacker can create a specially crafted XFS image containing a SUID-root shell, then trick udisks into resizing it. This mounts their malicious filesystem with root privileges, allowing them to execute their SUID-root shell and gain complete control of the system."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una vulnerabilidad de Escalada de Privilegios Locales (LPE) en libblockdev. Generalmente, la configuraci\u00f3n \"allow_active\" de Polkit permite a un usuario f\u00edsicamente presente realizar ciertas acciones seg\u00fan el tipo de sesi\u00f3n. Debido a la forma en que libblockdev interact\u00faa con el daemon udisks, un usuario \"allow_active\" en un sistema puede escalar a privilegios de root completos en el host objetivo. Normalmente, udisks monta im\u00e1genes del sistema de archivos proporcionadas por el usuario con indicadores de seguridad como nosuid y nodev para evitar la escalada de privilegios. Sin embargo, un atacante local puede crear una imagen XFS especialmente manipulada que contenga un shell SUID-root y luego enga\u00f1ar a udisks para que la redimensione. Esto monta su sistema de archivos malicioso con privilegios de root, lo que le permite ejecutar su shell SUID-root y obtener el control total del sistema."
    }
  ],
  "id": "CVE-2025-6019",
  "lastModified": "2026-06-25T03:16:37.680",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-6019",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-06-24T03:55:34.080434Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-06-19T12:15:19.727",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:10796"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9320"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9321"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9322"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9323"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9324"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9325"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9326"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9327"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9328"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:9878"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2025-6019"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2370051"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://cdn2.qualys.com/2025/06/17/suse15-pam-udisks-lpe.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/06/17/5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/06/17/6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/06/18/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00018.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://news.ycombinator.com/item?id=44325861"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.bleepingcomputer.com/news/linux/new-linux-udisks-flaw-lets-attackers-get-root-on-major-linux-distros/"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-250"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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