Util Linux
Sign in to watchby Kernel
Source repositories
CVEs (9)
| CVE | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2015-5224 | Cri | 0.64 | 9.8 | 0.04 | Aug 23, 2017 | The mkostemp function in login-utils in util-linux when used incorrectly allows remote attackers to cause file name collision and possibly other attacks. | |
| CVE-2014-9114 | Hig | 0.51 | 7.8 | 0.00 | Mar 31, 2017 | Blkid in util-linux before 2.26rc-1 allows local users to execute arbitrary code. | |
| CVE-2016-2779 | Hig | 0.51 | 7.8 | 0.00 | Feb 7, 2017 | runuser in util-linux allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer. | |
| CVE-2001-1494 | Med | 0.36 | 5.5 | 0.00 | Dec 31, 2001 | script command in the util-linux package before 2.11n allows local users to overwrite arbitrary files by setting a hardlink from the typescript log file to any file on the system, then having root execute the script command. | |
| CVE-2026-27456 | Med | 0.24 | 4.7 | 0.00 | Apr 3, 2026 | util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU (Time-of-Check-Time-of-Use) vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privileges via fork() + setuid() + realpath(), but subsequently re-canonicalizes and opens it with root privileges (euid=0) without verifying that the path has not been replaced between both operations. Neither O_NOFOLLOW, nor inode comparison, nor post-open fstat() are employed. This allows a local unprivileged user to replace the source file with a symlink pointing to any root-owned file or device during the race window, causing the SUID binary to open and mount it as root. Exploitation requires an /etc/fstab entry with user,loop options whose path points to a directory where the attacker has write permission, and that /usr/bin/mount has the SUID bit set (the default configuration on virtually all Linux distributions). The impact is unauthorized read access to root-protected files and block devices, including backup images, disk volumes, and any file containing a valid filesystem. This issue has been patched in version 2.41.4. | |
| CVE-2026-3184 | Low | 0.24 | 3.7 | 0.00 | Apr 3, 2026 | A flaw was found in util-linux. Improper hostname canonicalization in the `login(1)` utility, when invoked with the `-h` option, can modify the supplied remote hostname before setting `PAM_RHOST`. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing host-based Pluggable Authentication Modules (PAM) access control rules that rely on fully qualified domain names. This could lead to unauthorized access. | |
| CVE-2015-5218 | 0.00 | — | 0.00 | Nov 9, 2015 | Buffer overflow in text-utils/colcrt.c in colcrt in util-linux before 2.27 allows local users to cause a denial of service (crash) via a crafted file, related to the page global variable. | ||
| CVE-2013-0157 | 0.00 | — | 0.00 | Jan 21, 2014 | (a) mount and (b) umount in util-linux 2.14.1, 2.17.2, and probably other versions allow local users to determine the existence of restricted directories by (1) using the --guess-fstype command-line option or (2) attempting to mount a non-existent device, which generates different error messages depending on whether the directory exists. | ||
| CVE-2007-5191 | 0.00 | — | 0.00 | Oct 4, 2007 | mount and umount in util-linux and loop-aes-utils call the setuid and setgid functions in the wrong order and do not check the return values, which might allow attackers to gain privileges via helpers such as mount.nfs. |