Description
libcontainer/user/user.go in runC before 0.1.0, as used in Docker before 1.11.2, improperly treats a numeric UID as a potential username, which allows local users to gain privileges via a numeric username in the password file in a container.
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 | runc | 0.1.0+dfsg-1 | — |
| Debian 13 | runc | 0.1.0+dfsg-1 | — |
| Debian 12 | runc | 0.1.0+dfsg-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Extras Other 7 | docker +4 | 1.9.1-40.el7 | RHSA-2016:2634, RHSA-2016:1034 |
| Red Hat Rhel Extras Other 7 | docker-lvm-plugin +3 | 1.10.3-57.el7 | RHSA-2016:2634 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLES 15 SP6 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLES 15 SP5 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLES 15 SP4 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLES 15 SP3 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | docker-stable | 24.0.9_ce-1.20.1 | SUSE-SU-2025:03540-1 |
| SLES 12 | docker | 1.10.3-66.1 | SUSE-SU-2016:1159-1 |
| SLES for SAP 15 SP5 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLES for SAP 15 SP4 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLES for SAP 15 SP3 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLE HPC 15 SP5 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLE HPC 15 SP4 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SLE HPC 15 SP3 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
| SUSE OpenStack Cloud 6 | docker | 1.10.3-66.1 | SUSE-SU-2016:1159-1 |
| SUSE Enterprise Storage 7.1 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | docker | 1.12.3-4.1 | openSUSE-SU-2024:10532-1 |
| openSUSE Tumbleweed | docker-stable | 24.0.9_ce-15.1 | openSUSE-SU-2025:15589-1 |
| openSUSE Leap 15.6 | docker-stable | 24.0.9_ce-150000.1.25.1 | SUSE-SU-2025:03545-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | docker-engine +1 | 1.10.3-1.0.3.el7 | ELSA-2016-3568 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/opencontainers/runc | < 0.1.0 | 0.1.0 | GHSA-q3j5-32m5-58c2 |
Advisories 8
- openSUSE-SU-2025:15589-1 docker-stable-24.0.9_ce-15.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03545-1 Security update for docker-stable SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2016:1159-1 Security update for docker SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10532-1 docker-1.12.3-4.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03540-1 Security update for docker-stable SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2016:2634 Red Hat Security Advisory: docker security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2016:1034 Red Hat Security Advisory: docker security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ELSA-2016-3568 Important: docker-engine security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 20, 2016
References
- RHSA-2016:1034 vendor-advisory
- https://github.com/opencontainers/runc/releases/tag/v0.1.0
- openSUSE-SU-2016:1417 vendor-advisory
- https://github.com/docker/docker/issues/21436
- https://github.com/opencontainers/runc/pull/708
- RHSA-2016:2634 vendor-advisory
- https://github.com/opencontainers/runc/commit/69af385de62ea68e2e608335cffbb0f4aa3db091
- GLSA-201612-28 vendor-advisory