Description
usr/log.c in iscsid in open-iscsi (iscsi-initiator-utils) before 2.0-865 uses a semaphore with insecure permissions (world-writable/world-readable) for managing log messages using shared memory, which allows local users to cause a denial of service (hang) by grabbing the semaphore.
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 | open-iscsi | 2.0.865-1 | — |
| Debian 13 | open-iscsi | 2.0.865-1 | — |
| Debian 12 | open-iscsi | 2.0.865-1 | — |
| Debian 4.0 | open-iscsi | 2.0.730-1etch1 | DSA-1314-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | iscsi-initiator-utils | 6.2.0.742-0.6.el5 | RHSA-2007:0497 |
Advisories 2
- RHSA-2007:0497 Red Hat Security Advisory: iscsi-initiator-utils security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1314-1 open-iscsi Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=243719
- 25679 third-party-advisory
- 37270 vdb-entry
- 24471 vdb-entry
- openiscsi-log-dos(34943) vdb-entry
- 1018246 vdb-entry
- http://support.novell.com/techcenter/psdb/187174044e1dbe78726bcf840f7530ed.html
- 26438 third-party-advisory
- SUSE-SR:2007:017 vendor-advisory
- 26543 third-party-advisory
- 25749 third-party-advisory
- http://svn.berlios.de/viewcvs/open-iscsi?rev=858&view=rev
- oval:org.mitre.oval:def:10653 vdb-entry signature
- DSA-1314 vendor-advisory
- RHSA-2007:0497 vendor-advisory