Description
tcmu-runner version 0.91 up to 1.20 is vulnerable to information disclosure in handler_qcow.so resulting in non-privileged users being able to check for existence of any file with root privileges.
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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Gluster Storage 3 | libtcmu +2 | 1.2.0-16.el7rhgs | RHSA-2017:3277 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | tcmu-runner | 1.0.4-3.3.10 | SUSE-SU-2017:2601-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | tcmu-runner | 1.0.4-3.3.10 | SUSE-SU-2017:2601-1 |
Advisories 2
- RHSA-2017:3277 Red Hat Security Advisory: tcmu-runner security update Red Hat Security Advisories (RHSA) · May 13, 2026
- SUSE-SU-2017:2601-1 Security update for tcmu-runner SUSE / openSUSE Security Updates · Feb 4, 2026
References
- RHSA-2017:3277 vendor-advisory
- https://github.com/open-iscsi/tcmu-runner/issues/194