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CVE-2024-26821
Vulnerability from cvelistv5
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Show details on NVD website{
"containers": {
"cna": {
"providerMetadata": {
"dateUpdated": "2024-05-16T12:22:39.501Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"rejectedReasons": [
{
"lang": "en",
"value": "This CVE ID has been rejected or withdrawn by its CVE Numbering Authority."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-26821",
"datePublished": "2024-04-17T09:43:48.600Z",
"dateRejected": "2024-05-16T12:22:39.501Z",
"dateReserved": "2024-02-19T14:20:24.180Z",
"dateUpdated": "2024-05-16T12:22:39.501Z",
"state": "REJECTED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2024-26821\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T10:15:08.917\",\"lastModified\":\"2024-05-16T13:15:47.693\",\"vulnStatus\":\"Rejected\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.\"}],\"metrics\":{},\"references\":[]}}"
}
}
ghsa-gv29-5jrh-hrxg
Vulnerability from github
Published
2024-04-17 12:32
Modified
2024-04-17 12:32
Details
In the Linux kernel, the following vulnerability has been resolved:
fs: relax mount_setattr() permission checks
When we added mount_setattr() I added additional checks compared to the legacy do_reconfigure_mnt() and do_change_type() helpers used by regular mount(2). If that mount had a parent then verify that the caller and the mount namespace the mount is attached to match and if not make sure that it's an anonymous mount.
The real rootfs falls into neither category. It is neither an anoymous mount because it is obviously attached to the initial mount namespace but it also obviously doesn't have a parent mount. So that means legacy mount(2) allows changing mount properties on the real rootfs but mount_setattr(2) blocks this. I never thought much about this but of course someone on this planet of earth changes properties on the real rootfs as can be seen in [1].
Since util-linux finally switched to the new mount api in 2.39 not so long ago it also relies on mount_setattr() and that surfaced this issue when Fedora 39 finally switched to it. Fix this.
{
"affected": [],
"aliases": [
"CVE-2024-26821"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-17T10:15:08Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: relax mount_setattr() permission checks\n\nWhen we added mount_setattr() I added additional checks compared to the\nlegacy do_reconfigure_mnt() and do_change_type() helpers used by regular\nmount(2). If that mount had a parent then verify that the caller and the\nmount namespace the mount is attached to match and if not make sure that\nit\u0027s an anonymous mount.\n\nThe real rootfs falls into neither category. It is neither an anoymous\nmount because it is obviously attached to the initial mount namespace\nbut it also obviously doesn\u0027t have a parent mount. So that means legacy\nmount(2) allows changing mount properties on the real rootfs but\nmount_setattr(2) blocks this. I never thought much about this but of\ncourse someone on this planet of earth changes properties on the real\nrootfs as can be seen in [1].\n\nSince util-linux finally switched to the new mount api in 2.39 not so\nlong ago it also relies on mount_setattr() and that surfaced this issue\nwhen Fedora 39 finally switched to it. Fix this.",
"id": "GHSA-gv29-5jrh-hrxg",
"modified": "2024-04-17T12:32:02Z",
"published": "2024-04-17T12:32:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26821"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2a7a31e1fb9717845d9d5e2a8c6e48848147801e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/31f71f2d7a081fc6c6bdf06865beedf6db5b0ca4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/46f5ab762d048dad224436978315cbc2fa79c630"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/95de4ad173ca0e61034f3145d66917970961c210"
}
],
"schema_version": "1.4.0",
"severity": []
}
wid-sec-w-2024-0913
Vulnerability from csaf_certbund
Published
2024-04-16 22:00
Modified
2024-07-22 22:00
Summary
Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service
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 lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder weitere, unbekannte Auswirkungen zu verursachen.
Betroffene Betriebssysteme
- Linux
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"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 lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren oder weitere, unbekannte Auswirkungen zu verursachen.",
"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-2024-0913 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0913.json"
},
{
"category": "self",
"summary": "WID-SEC-2024-0913 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0913"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041701-CVE-2023-52643-8834@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041701-CVE-2024-26818-d65b@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041701-CVE-2024-26819-1731@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041701-CVE-2024-26820-fc5a@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041702-CVE-2024-26821-de6b@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041702-CVE-2024-26822-04b5@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041702-CVE-2024-26823-0e52@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041702-CVE-2024-26824-98e1@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041702-CVE-2024-26825-408e@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041703-CVE-2024-26827-67c1@gregkh/T"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041703-CVE-2024-26828-b2be@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041703-CVE-2024-26830-5bc0@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041704-CVE-2024-26831-2e6e@gregkh/T/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcements vom 2024-04-16",
"url": "https://lore.kernel.org/linux-cve-announce/2024041758-CVE-2023-52642-3261@gregkh/T/"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-5681 vom 2024-05-06",
"url": "https://lists.debian.org/debian-security-announce/2024/msg00090.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6767-1 vom 2024-05-07",
"url": "https://ubuntu.com/security/notices/USN-6767-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6766-1 vom 2024-05-07",
"url": "https://ubuntu.com/security/notices/USN-6766-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6767-2 vom 2024-05-14",
"url": "https://ubuntu.com/security/notices/USN-6767-2"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:1644-1 vom 2024-05-14",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-May/018528.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6766-2 vom 2024-05-15",
"url": "https://ubuntu.com/security/notices/USN-6766-2"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:1659-1 vom 2024-05-15",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-May/018538.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6766-3 vom 2024-05-20",
"url": "https://ubuntu.com/security/notices/USN-6766-3"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6795-1 vom 2024-05-28",
"url": "https://ubuntu.com/security/notices/USN-6795-1"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:3460 vom 2024-05-29",
"url": "https://access.redhat.com/errata/RHSA-2024:3460"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:3461 vom 2024-05-29",
"url": "https://access.redhat.com/errata/RHSA-2024:3461"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6820-1 vom 2024-06-08",
"url": "https://ubuntu.com/security/notices/USN-6820-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6821-1 vom 2024-06-08",
"url": "https://ubuntu.com/security/notices/USN-6821-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6821-2 vom 2024-06-10",
"url": "https://ubuntu.com/security/notices/USN-6821-2"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:1979-1 vom 2024-06-11",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018685.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6828-1 vom 2024-06-11",
"url": "https://ubuntu.com/security/notices/USN-6828-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6820-2 vom 2024-06-11",
"url": "https://ubuntu.com/security/notices/USN-6820-2"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:1983-1 vom 2024-06-11",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018700.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6821-3 vom 2024-06-11",
"url": "https://ubuntu.com/security/notices/USN-6821-3"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2008-1 vom 2024-06-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018706.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2011-1 vom 2024-06-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018710.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6821-4 vom 2024-06-14",
"url": "https://ubuntu.com/security/notices/USN-6821-4"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2135-1 vom 2024-06-21",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018783.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2184-1 vom 2024-06-24",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018807.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2185-1 vom 2024-06-24",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018809.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2183-1 vom 2024-06-24",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018808.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2189-1 vom 2024-06-25",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018811.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-3842 vom 2024-06-25",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2190-1 vom 2024-06-25",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-June/018819.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-3840 vom 2024-06-27",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:4211 vom 2024-07-02",
"url": "https://access.redhat.com/errata/RHSA-2024:4211"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2024-4211 vom 2024-07-03",
"url": "https://linux.oracle.com/errata/ELSA-2024-4211.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6871-1 vom 2024-07-04",
"url": "https://ubuntu.com/security/notices/USN-6871-1"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:4352 vom 2024-07-08",
"url": "https://access.redhat.com/errata/RHSA-2024:4352"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2335-1 vom 2024-07-08",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018882.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2326-1 vom 2024-07-08",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018883.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2338-1 vom 2024-07-08",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018889.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2337-1 vom 2024-07-08",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018881.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2341-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018890.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2373-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018895.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2357-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018899.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2368-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018900.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2351-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018891.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2369-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018896.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2362-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018905.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2343-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018893.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2342-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018894.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2344-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018892.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2358-1 vom 2024-07-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018898.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2384-1 vom 2024-07-10",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018921.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6892-1 vom 2024-07-10",
"url": "https://ubuntu.com/security/notices/USN-6892-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2382-1 vom 2024-07-10",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018917.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:4321 vom 2024-07-10",
"url": "https://access.redhat.com/errata/RHSA-2024:4321"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2396-1 vom 2024-07-11",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018923.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2410-1 vom 2024-07-11",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018926.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2407-1 vom 2024-07-11",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018924.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6895-1 vom 2024-07-12",
"url": "https://ubuntu.com/security/notices/USN-6895-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2472-1 vom 2024-07-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018943.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2446-1 vom 2024-07-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018947.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2437-1 vom 2024-07-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018948.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2474-1 vom 2024-07-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018941.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2448-1 vom 2024-07-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018945.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6896-1 vom 2024-07-12",
"url": "https://ubuntu.com/security/notices/USN-6896-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2447-1 vom 2024-07-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018946.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2473-1 vom 2024-07-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018942.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2449-1 vom 2024-07-12",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018944.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2480-1 vom 2024-07-15",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018967.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2488-1 vom 2024-07-15",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018970.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6898-1 vom 2024-07-15",
"url": "https://ubuntu.com/security/notices/USN-6898-1"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2024:4211 vom 2024-07-15",
"url": "https://errata.build.resf.org/RLSA-2024:4211"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2487-1 vom 2024-07-15",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018971.html"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2024:4352 vom 2024-07-15",
"url": "https://errata.build.resf.org/RLSA-2024:4352"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6895-2 vom 2024-07-16",
"url": "https://ubuntu.com/security/notices/USN-6895-2"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2530-1 vom 2024-07-16",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018985.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6896-2 vom 2024-07-16",
"url": "https://ubuntu.com/security/notices/USN-6896-2"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6896-3 vom 2024-07-17",
"url": "https://ubuntu.com/security/notices/USN-6896-3"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6898-2 vom 2024-07-17",
"url": "https://ubuntu.com/security/notices/USN-6898-2"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6900-1 vom 2024-07-17",
"url": "https://ubuntu.com/security/notices/USN-6900-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2558-1 vom 2024-07-18",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018999.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2559-1 vom 2024-07-18",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018998.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:2549-1 vom 2024-07-18",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/019000.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:4631 vom 2024-07-18",
"url": "https://access.redhat.com/errata/RHSA-2024:4631"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6896-4 vom 2024-07-19",
"url": "https://ubuntu.com/security/notices/USN-6896-4"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6895-3 vom 2024-07-19",
"url": "https://ubuntu.com/security/notices/USN-6895-3"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6898-3 vom 2024-07-19",
"url": "https://ubuntu.com/security/notices/USN-6898-3"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6898-4 vom 2024-07-23",
"url": "https://ubuntu.com/security/notices/USN-6898-4"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6896-5 vom 2024-07-23",
"url": "https://ubuntu.com/security/notices/USN-6896-5"
}
],
"source_lang": "en-US",
"title": "Linux Kernel: Mehrere Schwachstellen erm\u00f6glichen Denial of Service",
"tracking": {
"current_release_date": "2024-07-22T22:00:00.000+00:00",
"generator": {
"date": "2024-07-23T10:39:59.679+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.3.0"
}
},
"id": "WID-SEC-W-2024-0913",
"initial_release_date": "2024-04-16T22:00:00.000+00:00",
"revision_history": [
{
"date": "2024-04-16T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2024-05-06T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2024-05-07T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-05-13T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-05-14T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-05-15T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von Ubuntu und SUSE aufgenommen"
},
{
"date": "2024-05-20T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-05-28T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-06-09T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-06-10T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-06-11T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von Ubuntu und SUSE aufgenommen"
},
{
"date": "2024-06-12T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-06-16T22:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-06-23T22:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-06-24T22:00:00.000+00:00",
"number": "15",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-06-25T22:00:00.000+00:00",
"number": "16",
"summary": "Neue Updates von Debian und SUSE aufgenommen"
},
{
"date": "2024-06-27T22:00:00.000+00:00",
"number": "17",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2024-07-01T22:00:00.000+00:00",
"number": "18",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2024-07-02T22:00:00.000+00:00",
"number": "19",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2024-07-03T22:00:00.000+00:00",
"number": "20",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-07-07T22:00:00.000+00:00",
"number": "21",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2024-07-08T22:00:00.000+00:00",
"number": "22",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-07-09T22:00:00.000+00:00",
"number": "23",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-07-10T22:00:00.000+00:00",
"number": "24",
"summary": "Neue Updates von SUSE, Ubuntu und Red Hat aufgenommen"
},
{
"date": "2024-07-11T22:00:00.000+00:00",
"number": "25",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-07-14T22:00:00.000+00:00",
"number": "26",
"summary": "Neue Updates von Ubuntu und SUSE aufgenommen"
},
{
"date": "2024-07-15T22:00:00.000+00:00",
"number": "27",
"summary": "Neue Updates von SUSE, Ubuntu und Rocky Enterprise Software Foundation aufgenommen"
},
{
"date": "2024-07-16T22:00:00.000+00:00",
"number": "28",
"summary": "Neue Updates von SUSE und Ubuntu aufgenommen"
},
{
"date": "2024-07-17T22:00:00.000+00:00",
"number": "29",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-07-18T22:00:00.000+00:00",
"number": "30",
"summary": "Neue Updates von SUSE und Red Hat aufgenommen"
},
{
"date": "2024-07-22T22:00:00.000+00:00",
"number": "31",
"summary": "Neue Updates von Ubuntu aufgenommen"
}
],
"status": "final",
"version": "31"
}
},
"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": "Open Source Linux Kernel",
"product": {
"name": "Open Source Linux Kernel",
"product_id": "T033646",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:-"
}
}
}
],
"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": "RESF Rocky Linux",
"product": {
"name": "RESF Rocky Linux",
"product_id": "T032255",
"product_identification_helper": {
"cpe": "cpe:/o:resf:rocky_linux:-"
}
}
}
],
"category": "vendor",
"name": "RESF"
},
{
"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-2023-52642",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2023-52642"
},
{
"cve": "CVE-2023-52643",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2023-52643"
},
{
"cve": "CVE-2024-26818",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26818"
},
{
"cve": "CVE-2024-26819",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26819"
},
{
"cve": "CVE-2024-26820",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26820"
},
{
"cve": "CVE-2024-26821",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26821"
},
{
"cve": "CVE-2024-26822",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26822"
},
{
"cve": "CVE-2024-26823",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26823"
},
{
"cve": "CVE-2024-26824",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26824"
},
{
"cve": "CVE-2024-26825",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26825"
},
{
"cve": "CVE-2024-26826",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26826"
},
{
"cve": "CVE-2024-26827",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26827"
},
{
"cve": "CVE-2024-26828",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26828"
},
{
"cve": "CVE-2024-26830",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26830"
},
{
"cve": "CVE-2024-26831",
"notes": [
{
"category": "description",
"text": "Im Linux Kernel existieren mehrere Schwachstellen. Die Ursachen dieser Schwachstellen sind unter anderem Null-Pointer Dereferenzierungen. Ein lokaler Angreifer kann das ausnutzen, um einen Denial of Service oder weitere, unbekannte Auswirkungen zu verursachen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T033646",
"T004914",
"T032255"
]
},
"release_date": "2024-04-16T22:00:00Z",
"title": "CVE-2024-26831"
}
]
}
gsd-2024-26821
Vulnerability from gsd
Modified
2024-02-20 06:02
Details
In the Linux kernel, the following vulnerability has been resolved:
fs: relax mount_setattr() permission checks
When we added mount_setattr() I added additional checks compared to the
legacy do_reconfigure_mnt() and do_change_type() helpers used by regular
mount(2). If that mount had a parent then verify that the caller and the
mount namespace the mount is attached to match and if not make sure that
it's an anonymous mount.
The real rootfs falls into neither category. It is neither an anoymous
mount because it is obviously attached to the initial mount namespace
but it also obviously doesn't have a parent mount. So that means legacy
mount(2) allows changing mount properties on the real rootfs but
mount_setattr(2) blocks this. I never thought much about this but of
course someone on this planet of earth changes properties on the real
rootfs as can be seen in [1].
Since util-linux finally switched to the new mount api in 2.39 not so
long ago it also relies on mount_setattr() and that surfaced this issue
when Fedora 39 finally switched to it. Fix this.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2024-26821"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: relax mount_setattr() permission checks\n\nWhen we added mount_setattr() I added additional checks compared to the\nlegacy do_reconfigure_mnt() and do_change_type() helpers used by regular\nmount(2). If that mount had a parent then verify that the caller and the\nmount namespace the mount is attached to match and if not make sure that\nit\u0027s an anonymous mount.\n\nThe real rootfs falls into neither category. It is neither an anoymous\nmount because it is obviously attached to the initial mount namespace\nbut it also obviously doesn\u0027t have a parent mount. So that means legacy\nmount(2) allows changing mount properties on the real rootfs but\nmount_setattr(2) blocks this. I never thought much about this but of\ncourse someone on this planet of earth changes properties on the real\nrootfs as can be seen in [1].\n\nSince util-linux finally switched to the new mount api in 2.39 not so\nlong ago it also relies on mount_setattr() and that surfaced this issue\nwhen Fedora 39 finally switched to it. Fix this.",
"id": "GSD-2024-26821",
"modified": "2024-02-20T06:02:29.151967Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"STATE": "PUBLIC"
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"affects": {
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"vendor_data": [
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{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "1da177e4c3f4",
"version_value": "95de4ad173ca"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
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"status": "unaffected",
"version": "6.1.79",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: relax mount_setattr() permission checks\n\nWhen we added mount_setattr() I added additional checks compared to the\nlegacy do_reconfigure_mnt() and do_change_type() helpers used by regular\nmount(2). If that mount had a parent then verify that the caller and the\nmount namespace the mount is attached to match and if not make sure that\nit\u0027s an anonymous mount.\n\nThe real rootfs falls into neither category. It is neither an anoymous\nmount because it is obviously attached to the initial mount namespace\nbut it also obviously doesn\u0027t have a parent mount. So that means legacy\nmount(2) allows changing mount properties on the real rootfs but\nmount_setattr(2) blocks this. I never thought much about this but of\ncourse someone on this planet of earth changes properties on the real\nrootfs as can be seen in [1].\n\nSince util-linux finally switched to the new mount api in 2.39 not so\nlong ago it also relies on mount_setattr() and that surfaced this issue\nwhen Fedora 39 finally switched to it. Fix this."
}
]
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"url": "https://git.kernel.org/stable/c/2a7a31e1fb9717845d9d5e2a8c6e48848147801e"
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"name": "https://git.kernel.org/stable/c/46f5ab762d048dad224436978315cbc2fa79c630",
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"url": "https://git.kernel.org/stable/c/46f5ab762d048dad224436978315cbc2fa79c630"
}
]
}
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: relax mount_setattr() permission checks\n\nWhen we added mount_setattr() I added additional checks compared to the\nlegacy do_reconfigure_mnt() and do_change_type() helpers used by regular\nmount(2). If that mount had a parent then verify that the caller and the\nmount namespace the mount is attached to match and if not make sure that\nit\u0027s an anonymous mount.\n\nThe real rootfs falls into neither category. It is neither an anoymous\nmount because it is obviously attached to the initial mount namespace\nbut it also obviously doesn\u0027t have a parent mount. So that means legacy\nmount(2) allows changing mount properties on the real rootfs but\nmount_setattr(2) blocks this. I never thought much about this but of\ncourse someone on this planet of earth changes properties on the real\nrootfs as can be seen in [1].\n\nSince util-linux finally switched to the new mount api in 2.39 not so\nlong ago it also relies on mount_setattr() and that surfaced this issue\nwhen Fedora 39 finally switched to it. Fix this."
}
],
"id": "CVE-2024-26821",
"lastModified": "2024-04-17T12:48:07.510",
"metrics": {},
"published": "2024-04-17T10:15:08.917",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2a7a31e1fb9717845d9d5e2a8c6e48848147801e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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},
{
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},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/95de4ad173ca0e61034f3145d66917970961c210"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
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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.