Description
A race condition was found in util-linux before 2.32.1 in the way su handled the management of child processes. A local authenticated attacker could use this flaw to kill other processes with root privileges under specific conditions.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | util-linux | 2.32.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | coreutils | 8.20-1 | — |
| Debian 14 | shadow | 1:4.4-4 | — |
| Debian 14 | util-linux | 2.29.2-1 | — |
| Debian 13 | coreutils | 8.20-1 | — |
| Debian 13 | shadow | 1:4.4-4 | — |
| Debian 13 | util-linux | 2.29.2-1 | — |
| Debian 12 | coreutils | 8.20-1 | — |
| Debian 12 | shadow | 1:4.4-4 | — |
| Debian 12 | util-linux | 2.29.2-1 | — |
| Debian 8 | shadow | 1:4.2-3+deb8u3 | DSA-3793-1 |
| Debian 7 | shadow | 1:4.1.5.1-1+deb7u1 | DLA-838-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | shadow | 1:4.2-3.1ubuntu5.2 | USN-3276-1 |
| Ubuntu 14.04 LTS | shadow | 1:4.1.5.1-1ubuntu9.4 | USN-3276-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | uuidd +7 | 2.23.2-33.el7_3.2 | RHSA-2017:0907 |
| RHEL 6 | coreutils +1 | 8.4-46.el6 | RHSA-2017:0654 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | python-libmount +1 | 2.28-44.3.3 | SUSE-SU-2017:0554-1 |
| SLES 12 SP2 | util-linux | 2.28-44.3.1 | SUSE-SU-2017:0554-1 |
| SLES 12 SP1 | python-libmount | 2.25-40.2 | SUSE-SU-2017:0555-1 |
| SLES 12 SP1 | util-linux +1 | 2.25-40.1 | SUSE-SU-2017:0555-1 |
| SLES 12 | python-libmount | 2.25-24.10.3 | SUSE-SU-2017:0553-1 |
| SLES 12 | util-linux +1 | 2.25-24.10.1 | SUSE-SU-2017:0553-1 |
| SLES 11 SP4 | coreutils | 8.12-6.25.33.3.1 | SUSE-SU-2018:0866-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | python-libmount +1 | 2.28-44.3.3 | SUSE-SU-2017:0554-1 |
| SLES for SAP 12 SP2 | util-linux | 2.28-44.3.1 | SUSE-SU-2017:0554-1 |
| SLES for SAP 12 SP1 | python-libmount | 2.25-40.2 | SUSE-SU-2017:0555-1 |
| SLES for SAP 12 SP1 | util-linux +1 | 2.25-40.1 | SUSE-SU-2017:0555-1 |
| SLES for SAP 12 | python-libmount | 2.25-24.10.3 | SUSE-SU-2017:0553-1 |
| SLES for SAP 12 | util-linux +1 | 2.25-24.10.1 | SUSE-SU-2017:0553-1 |
| SLES for SAP 11 SP4 | coreutils | 8.12-6.25.33.3.1 | SUSE-SU-2018:0866-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | util-linux | 2.36.2-3.2 | openSUSE-SU-2024:11282-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | shadow | 4.2.1-r11 | — |
| Alpine v3.23 | shadow | 4.2.1-r11 | — |
| Alpine v3.22 | shadow | 4.2.1-r11 | — |
| Alpine v3.21 | shadow | 4.2.1-r11 | — |
| Alpine v3.20 | shadow | 4.2.1-r11 | — |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | shadow | 4.2.1-r11 | — |
| Alpine v3.18 | shadow | 4.2.1-r11 | — |
| Alpine v3.17 | shadow | 4.2.1-r11 | — |
| Alpine v3.16 | shadow | 4.2.1-r11 | — |
| Alpine v3.15 | shadow | 4.2.1-r11 | — |
| Alpine v3.14 | shadow | 4.2.1-r11 | — |
| Alpine v3.13 | shadow | 4.2.1-r11 | — |
| Alpine v3.12 | shadow | 4.2.1-r11 | — |
| Alpine v3.11 | shadow | 4.2.1-r11 | — |
| Alpine v3.10 | shadow | 4.2.1-r11 | — |
| Alpine v3.9 | shadow | 4.2.1-r11 | — |
| Alpine v3.8 | shadow | 4.2.1-r11 | — |
| Alpine v3.7 | shadow | 4.2.1-r11 | — |
| Alpine v3.6 | shadow | 4.2.1-r7 | — |
| Alpine v3.5 | shadow | 4.2.1-r7 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | uuidd +7 | 2.23.2-33.0.1.el7_3.2 | ELSA-2017-0907 |
Advisories 11
- RHSA-2017:0907 Red Hat Security Advisory: util-linux security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0654 Red Hat Security Advisory: coreutils security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- DLA-838-1 shadow - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3793-1 shadow - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3276-1 shadow vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2018:0866-1 Security update for coreutils SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0555-1 Security update for util-linux SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0554-1 Security update for util-linux SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11282-1 libblkid-devel-2.36.2-3.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0553-1 Security update for util-linux SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2017-0907 Moderate: util-linux security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 12, 2017
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2616
- 96404 vdb-entry
- RHSA-2017:0907 vendor-advisory
- RHSA-2017:0654 vendor-advisory
- GLSA-201706-02 vendor-advisory
- DSA-3793 vendor-advisory
- https://github.com/karelzak/util-linux/commit/dffab154d29a288aa171ff50263ecc8f2e14a891
- 1038271 vdb-entry