Security update for util-linux
This update for util-linux fixes the following issues: - CVE-2026-13595: heap use-after-free in `libblkid` nested partition probing (bsc#1269583). - CVE-2026-27456: TOCTOU in the mount program when setting up loop devices (bsc#1261606). - CVE-2026-53612: local privilege escalation via TOCTOU in mount(8) hook_owner.c chmod/chown (bsc#1268886). - CVE-2026-53613: local privilege escalation via TOCTOU in mount(8) - Target Path Redirection (bsc#1268886). - CVE-2026-53614: local privilege escalation via LIBMOUNT_FORCE_MOUNT2 Environment Variable - nosuid/noexec Bypass in SUID mount(8) (bsc#1268886). - CVE-2026-76642: failed external mount helper triggers privileged `X-mount` post-hooks, which enables local privilege escalation (bsc#1278349). - CVE-2026-78408: `nsenter --join-cgroup` leaks root `cgroup` migration authority, which allows for migration or termination of root processes (bsc#1278348). - CVE-2026-78410: restricted `bind` mounts do not pin the source, which allows for `X-mount.owner`/`group`/`mode` redirection (bsc#1278347). Changes for util-linux: - lib/fileutils: add ul_openat_resolve() openat2 wrapper (bsc#1275441) - lib/fileutils: fix RESOLVE_NO_SYMLINKS fallback value - lib/fileutils: fix unused parameter warnings without SYS_openat2 - libmount: add missing fileutils.h include to hook_idmap.c - libmount: add mnt_open_tree() helper for safe tree opening - libmount: pin source path with openat2() for restricted users (bsc#1275441, bsc#1278347, CVE-2026-78410) - libmoun
SUSE-SU-2026:23884-1
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:SUSE-SU-2026:23884-1
util-linux
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.41.1-160000.5.1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
util-linux-systemd
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.41.1-160000.5.1
Source reference:
/affected/1/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": "2.41.1-160000.5.1"
}
]
}
],
"package": {
"name": "util-linux",
"purl": "pkg:rpm/suse/util-linux&distro=SUSE%20Linux%20Micro%206.2",
"ecosystem": "SUSE:Linux Micro 6.2"
},
"database_specific": {
"source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23884-1.json"
},
"ecosystem_specific": {
"binaries": [
{
"lastlog2": "2.41.1-160000.5.1",
"libuuid1": "2.41.1-160000.5.1",
"libblkid1": "2.41.1-160000.5.1",
"libfdisk1": "2.41.1-160000.5.1",
"libmount1": "2.41.1-160000.5.1",
"util-linux": "2.41.1-160000.5.1",
"liblastlog2-2": "2.41.1-160000.5.1",
"libsmartcols1": "2.41.1-160000.5.1",
"util-linux-systemd": "2.41.1-160000.5.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.41.1-160000.5.1"
}
]
}
],
"package": {
"name": "util-linux-systemd",
"purl": "pkg:rpm/suse/util-linux-systemd&distro=SUSE%20Linux%20Micro%206.2",
"ecosystem": "SUSE:Linux Micro 6.2"
},
"database_specific": {
"source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23884-1.json"
},
"ecosystem_specific": {
"binaries": [
{
"lastlog2": "2.41.1-160000.5.1",
"libuuid1": "2.41.1-160000.5.1",
"libblkid1": "2.41.1-160000.5.1",
"libfdisk1": "2.41.1-160000.5.1",
"libmount1": "2.41.1-160000.5.1",
"util-linux": "2.41.1-160000.5.1",
"liblastlog2-2": "2.41.1-160000.5.1",
"libsmartcols1": "2.41.1-160000.5.1",
"util-linux-systemd": "2.41.1-160000.5.1"
}
]
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #46732 · Revision 1
- Added to Heist Feed
- Publisher date