Description
Multiple buffer overflows in the iSNS implementation in isns.c in (1) Linux SCSI target framework (aka tgt or scsi-target-utils) before 1.0.6, (2) iSCSI Enterprise Target (aka iscsitarget or IET) 1.4.20.1 and earlier, and (3) Generic SCSI Target Subsystem for Linux (aka SCST or iscsi-scst) 1.0.1.1 and earlier allow remote attackers to cause a denial of service (memory corruption and daemon crash) or possibly execute arbitrary code via (a) a long iSCSI Name string in an SCN message or (b) an invalid PDU.
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 Rhel Cluster Storage 5 | scsi-target-utils | 0.0-6.20091205snap.el5_5.3 | RHSA-2010:0518 |
Advisories 1
- RHSA-2010:0518 Red Hat Security Advisory: scsi-target-utils security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
References
- http://scst.svn.sourceforge.net/viewvc/scst?view=revision&revision=1793
- 20100702 TELUS Security Labs VR - iSCSI target Multiple Implementations iSNS Stack Buffer Overflow mailing-list
- ADV-2010-1760 vdb-entry
- 20100702 TELUS Security Labs VR - iSCSI target Multiple Implementations iSNS Stack Buffer Overflow mailing-list
- 65992 vdb-entry
- MDVSA-2010:131 vendor-advisory
- 65990 vdb-entry
- 41327 vdb-entry
- RHSA-2010:0518 vendor-advisory
- 65991 vdb-entry
- [iscsitarget-devel] 20100701 [patch] fix iSNS bounds checking mailing-list
- 40485 third-party-advisory
- [stgt] 20100701 1.0.6 released mailing-list
- SUSE-SR:2010:017 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=593877
- 40494 third-party-advisory
- http://scst.svn.sourceforge.net/viewvc/scst/trunk/iscsi-scst/usr/isns.c?r1=1793&r2=1792&pathrev=1793
- ADV-2010-1786 vdb-entry
- 1024175 vdb-entry
- 40495 third-party-advisory