util-linux security update
The util-linux package contains a random collection of files that implements some low-level basic linux utilities. Security Fix(es): CVE-2026-53612 has no publicly disclosed vulnerability details yet. It is only indexed by the Snyk data source. Details are pending disclosure.(CVE-2026-53612) When an /etc/fstab entry is configured with the user or users option, mount(8) validates the target path before performing the mount syscall, creating a Time-of-Check-Time-of-Use (TOCTOU) window. A local unprivileged user with write access to an ancestor directory of the mount target can swap that directory to redirect the mount to an arbitrary root-owned location, potentially escalating privileges to root.(CVE-2026-53613) A flaw was found in util-linux. The mount(8) SUID binary does not sanitize the LIBMOUNT_FORCE_MOUNT2 environment variable before use. A local unprivileged user can set this variable to force mount(8) to use the legacy two-step mount(2) code path, which applies security restrictions such as nosuid and noexec after the mount is already active. During this window, an attacker can execute a SUID binary from the mounted filesystem, allowing local privilege escalation to root. Affected versions: util-linux v2.39.1 through v2.43-devel (current master).(CVE-2026-53614) A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a
OESA-2026-4073
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:OESA-2026-4073
util-linux
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.39.1-44.oe2403sp4
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.39.1-44.oe2403sp4"
}
]
}
],
"package": {
"name": "util-linux",
"purl": "pkg:rpm/openEuler/util-linux&distro=openEuler-24.03-LTS-SP4",
"ecosystem": "openEuler:24.03-LTS-SP4"
},
"database_specific": {
"source": "https://repo.openeuler.org/security/data/osv/OESA-2026-4073.json"
},
"ecosystem_specific": {
"src": [
"util-linux-2.39.1-44.oe2403sp4.src.rpm"
],
"noarch": [
"util-linux-help-2.39.1-44.oe2403sp4.noarch.rpm"
],
"x86_64": [
"libblkid-2.39.1-44.oe2403sp4.x86_64.rpm",
"libfdisk-2.39.1-44.oe2403sp4.x86_64.rpm",
"libmount-2.39.1-44.oe2403sp4.x86_64.rpm",
"libsmartcols-2.39.1-44.oe2403sp4.x86_64.rpm",
"libuuid-2.39.1-44.oe2403sp4.x86_64.rpm",
"python3-libmount-2.39.1-44.oe2403sp4.x86_64.rpm",
"util-linux-2.39.1-44.oe2403sp4.x86_64.rpm",
"util-linux-debuginfo-2.39.1-44.oe2403sp4.x86_64.rpm",
"util-linux-debugsource-2.39.1-44.oe2403sp4.x86_64.rpm",
"util-linux-devel-2.39.1-44.oe2403sp4.x86_64.rpm",
"util-linux-user-2.39.1-44.oe2403sp4.x86_64.rpm",
"uuidd-2.39.1-44.oe2403sp4.x86_64.rpm"
],
"aarch64": [
"libblkid-2.39.1-44.oe2403sp4.aarch64.rpm",
"libfdisk-2.39.1-44.oe2403sp4.aarch64.rpm",
"libmount-2.39.1-44.oe2403sp4.aarch64.rpm",
"libsmartcols-2.39.1-44.oe2403sp4.aarch64.rpm",
"libuuid-2.39.1-44.oe2403sp4.aarch64.rpm",
"python3-libmount-2.39.1-44.oe2403sp4.aarch64.rpm",
"util-linux-2.39.1-44.oe2403sp4.aarch64.rpm",
"util-linux-debuginfo-2.39.1-44.oe2403sp4.aarch64.rpm",
"util-linux-debugsource-2.39.1-44.oe2403sp4.aarch64.rpm",
"util-linux-devel-2.39.1-44.oe2403sp4.aarch64.rpm",
"util-linux-user-2.39.1-44.oe2403sp4.aarch64.rpm",
"uuidd-2.39.1-44.oe2403sp4.aarch64.rpm"
]
}
}
]Publisher severity
high
Source reference: /database_specific/severity
- Event
- #14708 · Revision 1
- Added to Heist Feed
- Publisher date