WID-SEC-W-2026-1232

Vulnerability from csaf_certbund - Published: 2026-04-21 22:00 - Updated: 2026-05-04 22:00
Summary
Linux Kernel: Mehrere Schwachstellen
Severity
Hoch
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Der Kernel stellt den Kern des Linux Betriebssystems dar.
Angriff: Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service Zustand oder andere, nicht näher spezifizierte Auswirkungen zu erzielen.
Betroffene Betriebssysteme: - Linux
Affected products
Product Identifier Version Remediation
Open Source Linux Kernel
Open Source
cpe:/o:linux:linux_kernel:unspecified
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:-
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:-
Ubuntu Linux
Ubuntu
cpe:/o:canonical:ubuntu_linux:-
Google Cloud Platform
Google
cpe:/a:google:cloud_platform:-
Oracle Linux
Oracle
cpe:/o:oracle:linux:-
Google Container-Optimized OS
Google
cpe:/o:google:container-optimized_os:-
Affected products
Product Identifier Version Remediation
Open Source Linux Kernel
Open Source
cpe:/o:linux:linux_kernel:unspecified
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:-
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:-
Ubuntu Linux
Ubuntu
cpe:/o:canonical:ubuntu_linux:-
Google Cloud Platform
Google
cpe:/a:google:cloud_platform:-
Oracle Linux
Oracle
cpe:/o:oracle:linux:-
Google Container-Optimized OS
Google
cpe:/o:google:container-optimized_os:-
Affected products
Product Identifier Version Remediation
Open Source Linux Kernel
Open Source
cpe:/o:linux:linux_kernel:unspecified
Debian Linux
Debian
cpe:/o:debian:debian_linux:-
SUSE Linux
SUSE
cpe:/o:suse:suse_linux:-
Red Hat Enterprise Linux
Red Hat
cpe:/o:redhat:enterprise_linux:-
Ubuntu Linux
Ubuntu
cpe:/o:canonical:ubuntu_linux:-
Google Cloud Platform
Google
cpe:/a:google:cloud_platform:-
Oracle Linux
Oracle
cpe:/o:oracle:linux:-
Google Container-Optimized OS
Google
cpe:/o:google:container-optimized_os:-
References
URL Category
https://wid.cert-bund.de/.well-known/csaf/white/2… self
https://wid.cert-bund.de/portal/wid/securityadvis… self
https://lore.kernel.org/linux-cve-announce/ external
https://lore.kernel.org/linux-cve-announce/202604… external
https://lore.kernel.org/linux-cve-announce/202604… external
https://lore.kernel.org/linux-cve-announce/202604… external
https://github.com/badsectorlabs/copyfail-go external
https://copy.fail/ external
https://www.cisa.gov/known-exploited-vulnerabilit… external
https://ubuntu.com/security/notices/USN-8226-2 external
https://lists.debian.org/debian-security-announce… external
https://ubuntu.com/security/notices/USN-8226-1 external
https://linux.oracle.com/errata/ELSA-2026-50253.html external
https://lists.debian.org/debian-security-announce… external
https://lists.debian.org/debian-lts-announce/2026… external
https://lists.debian.org/debian-lts-announce/2026… external
https://docs.cloud.google.com/support/bulletins#g… external
https://linux.oracle.com/errata/ELSA-2026-50255.html external
https://linux.oracle.com/errata/ELSA-2026-50254.html external
https://docs.cloud.google.com/container-optimized… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://lists.suse.com/pipermail/sle-security-upd… external
https://access.redhat.com/errata/RHSA-2026:13578 external
https://lists.suse.com/pipermail/sle-security-upd… external
https://access.redhat.com/errata/RHSA-2026:13566 external
https://access.redhat.com/errata/RHSA-2026:13577 external
https://access.redhat.com/errata/RHSA-2026:13565 external

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um seine Privilegien zu erh\u00f6hen, um einen Denial of Service Zustand oder andere, nicht n\u00e4her spezifizierte Auswirkungen zu erzielen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-1232 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1232.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1232 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1232"
      },
      {
        "category": "external",
        "summary": "Kernel CVE Announce Mailingliste",
        "url": "https://lore.kernel.org/linux-cve-announce/"
      },
      {
        "category": "external",
        "summary": "Linux Kernel CVE Announcement CVE-2026-31431",
        "url": "https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/"
      },
      {
        "category": "external",
        "summary": "Linux Kernel CVE Announcement CVE-2026-31432",
        "url": "https://lore.kernel.org/linux-cve-announce/2026042216-CVE-2026-31432-e990@gregkh/"
      },
      {
        "category": "external",
        "summary": "Linux Kernel CVE Announcement CVE-2026-31433",
        "url": "https://lore.kernel.org/linux-cve-announce/2026042216-CVE-2026-31433-51e6@gregkh/"
      },
      {
        "category": "external",
        "summary": "CopyFail (CVE-2026-31431) Exploit-Code vom 2026-04-29",
        "url": "https://github.com/badsectorlabs/copyfail-go"
      },
      {
        "category": "external",
        "summary": "CopyFail (CVE-2026-31431) Webseite vom 2026-04-29",
        "url": "https://copy.fail/"
      },
      {
        "category": "external",
        "summary": "CISA Known Exploited Vulnerabilities Catalog CVE-2026-31431 vom 2026-05-03",
        "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-31431"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8226-2 vom 2026-04-30",
        "url": "https://ubuntu.com/security/notices/USN-8226-2"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6238 vom 2026-05-04",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00148.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8226-1 vom 2026-04-30",
        "url": "https://ubuntu.com/security/notices/USN-8226-1"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-50253 vom 2026-05-02",
        "url": "https://linux.oracle.com/errata/ELSA-2026-50253.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6243 vom 2026-05-04",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00154.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4560 vom 2026-05-02",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00004.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4561 vom 2026-05-02",
        "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00005.html"
      },
      {
        "category": "external",
        "summary": "Google Cloud Platform Security Bulletin GCP-2026-026 vom 2026-05-01",
        "url": "https://docs.cloud.google.com/support/bulletins#gcp-2026-026"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-50255 vom 2026-05-02",
        "url": "https://linux.oracle.com/errata/ELSA-2026-50255.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-50254 vom 2026-05-02",
        "url": "https://linux.oracle.com/errata/ELSA-2026-50254.html"
      },
      {
        "category": "external",
        "summary": "Container-Optimized OS release notes vom 2026-05-02",
        "url": "https://docs.cloud.google.com/container-optimized-os/docs/release-notes#May_01_2026"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21465-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025792.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21454-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025802.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21463-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025794.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21421-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025828.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21458-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025798.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21460-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025796.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21459-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025797.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1674-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025834.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21443-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025811.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21439-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025815.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1676-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025832.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1675-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025833.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1669-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025831.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1677-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025830.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1672-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025835.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1670-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025837.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1671-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025836.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21442-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025812.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1678-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025829.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21453-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025803.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13578 vom 2026-05-05",
        "url": "https://access.redhat.com/errata/RHSA-2026:13578"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:1671-2 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025838.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13566 vom 2026-05-05",
        "url": "https://access.redhat.com/errata/RHSA-2026:13566"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13577 vom 2026-05-05",
        "url": "https://access.redhat.com/errata/RHSA-2026:13577"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:13565 vom 2026-05-04",
        "url": "https://access.redhat.com/errata/RHSA-2026:13565"
      }
    ],
    "source_lang": "en-US",
    "title": "Linux Kernel: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-05-04T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-05T08:27:21.005+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-1232",
      "initial_release_date": "2026-04-21T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-04-21T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-04-22T22:00:00.000+00:00",
          "number": "2",
          "summary": "Referenz(en) aufgenommen: EUVD-2026-24639, EUVD-2026-24641"
        },
        {
          "date": "2026-04-29T22:00:00.000+00:00",
          "number": "3",
          "summary": "Beschreibung CVE-2026-31431 angepasst, Exploit verf\u00fcgbar"
        },
        {
          "date": "2026-05-03T22:00:00.000+00:00",
          "number": "4",
          "summary": "CVE-2026-31431 wird aktiv ausgenutzt"
        },
        {
          "date": "2026-05-04T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Red Hat und SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Google Cloud Platform",
            "product": {
              "name": "Google Cloud Platform",
              "product_id": "393401",
              "product_identification_helper": {
                "cpe": "cpe:/a:google:cloud_platform:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Google Container-Optimized OS",
            "product": {
              "name": "Google Container-Optimized OS",
              "product_id": "1607324",
              "product_identification_helper": {
                "cpe": "cpe:/o:google:container-optimized_os:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Google"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Linux Kernel",
            "product": {
              "name": "Open Source Linux Kernel",
              "product_id": "T028462",
              "product_identification_helper": {
                "cpe": "cpe:/o:linux:linux_kernel:unspecified"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-31432",
      "product_status": {
        "known_affected": [
          "T028462",
          "2951",
          "T002207",
          "67646",
          "T000126",
          "393401",
          "T004914",
          "1607324"
        ]
      },
      "release_date": "2026-04-21T22:00:00.000+00:00",
      "title": "CVE-2026-31432"
    },
    {
      "cve": "CVE-2026-31433",
      "product_status": {
        "known_affected": [
          "T028462",
          "2951",
          "T002207",
          "67646",
          "T000126",
          "393401",
          "T004914",
          "1607324"
        ]
      },
      "release_date": "2026-04-21T22:00:00.000+00:00",
      "title": "CVE-2026-31433"
    },
    {
      "cve": "CVE-2026-31431",
      "product_status": {
        "known_affected": [
          "T028462",
          "2951",
          "T002207",
          "67646",
          "T000126",
          "393401",
          "T004914",
          "1607324"
        ]
      },
      "release_date": "2026-04-29T22:00:00.000+00:00",
      "title": "CVE-2026-31431"
    }
  ]
}


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Tags
Taxonomy of the tags.


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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

Author Source Type Date Other

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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Detection rules are retrieved from Rulezet.

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