ghsa-jvc4-gpm6-jw84
Vulnerability from github
Published
2022-05-13 01:23
Modified
2022-05-13 01:23
Severity
Details
The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.
{
"affected": [],
"aliases": [
"CVE-2014-7975"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-10-13T10:55:00Z",
"severity": "MODERATE"
},
"details": "The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.",
"id": "GHSA-jvc4-gpm6-jw84",
"modified": "2022-05-13T01:23:24Z",
"published": "2022-05-13T01:23:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-7975"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:1842"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2077"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1151108"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/96994"
},
{
"type": "WEB",
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/60174"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/61145"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/62633"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/62634"
},
{
"type": "WEB",
"url": "http://thread.gmane.org/gmane.linux.kernel.stable/109312"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2014/10/08/22"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/70314"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1031180"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2415-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2416-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2417-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2418-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2419-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2420-1"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2421-1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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