Description
Multiple format string vulnerabilities in isns.c in (1) Linux SCSI target framework (aka tgt or scsi-target-utils) 1.0.3, 0.9.5, and earlier and (2) iSCSI Enterprise Target (aka iscsitarget) 0.4.16 allow remote attackers to cause a denial of service (tgtd daemon crash) or possibly have unspecified other impact via vectors that involve the isns_attr_query and qry_rsp_handle functions, and are related to (a) client appearance and (b) client disappearance messages.
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 | tgt | 1:1.0.3-2 | — |
| Debian 13 | tgt | 1:1.0.3-2 | — |
| Debian 12 | tgt | 1:1.0.3-2 | — |
| Debian 5.0 | iscsitarget | 0.4.16+svn162-3.1+lenny1 | DSA-2042-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Cluster Storage 5 | scsi-target-utils | 0.0-6.20091205snap.el5_5.2 | RHSA-2010:0362 |
Advisories 2
- RHSA-2010:0362 Red Hat Security Advisory: scsi-target-utils security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-2042-1 iscsitarget - arbitrary code execution Debian Security (DSA / DLA) · Mar 9, 2026
References
- lstf-isns-format-string(57496) vdb-entry
- https://bugzilla.redhat.com/show_bug.cgi?id=576359
- MDVSA-2010:131 vendor-advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574935
- oval:org.mitre.oval:def:11248 vdb-entry signature
- 39142 third-party-advisory
- [oss-security] 20100331 iscsitarget/scsi-target-tuils format string CVE assignment mailing-list
- 39127 vdb-entry
- SUSE-SR:2010:017 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/tomo/tgt.git%3Ba=commit%3Bh=107d922706cd36f3bb79bcca9bc4678c32f22e59
- DSA-2042 vendor-advisory
- ADV-2010-1786 vdb-entry
- 39726 third-party-advisory