Description
Double free vulnerability in the iscsi_rx_handler function (usr/iscsi/iscsid.c) in the tgt daemon (tgtd) in Linux SCSI target framework (tgt) before 1.0.14, aka scsi-target-utils, allows remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via unknown vectors related to a buffer overflow during iscsi login. NOTE: some of these details are obtained from third party information.
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 | 1:1.0.4-3 | — |
| Debian 13 | tgt | 1:1.0.4-3 | — |
| Debian 12 | tgt | 1:1.0.4-3 | — |
| Debian 6.0 | tgt | 1:1.0.4-2squeeze1 | DSA-2209-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | scsi-target-utils | 1.0.4-3.el6_0.1 | RHSA-2011:0332 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Cluster Storage 5 | scsi-target-utils | 1.0.8-0.el5_6.1 | RHSA-2011:0332 |
Advisories 2
- RHSA-2011:0332 Red Hat Security Advisory: scsi-target-utils security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-2209-1 tgt - double free Debian Security (DSA / DLA) · Mar 9, 2026
References
- SUSE-SR:2011:009 vendor-advisory
- RHSA-2011:0332 vendor-advisory
- ADV-2011-0636 vdb-entry
- [stgt] 20110309 [PATCH] iscsi: fix buffer overflow before login mailing-list
- https://bugzilla.redhat.com/attachment.cgi?id=473779&action=diff
- 43706 third-party-advisory
- DSA-2209 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=667261
- 43713 third-party-advisory
- 46817 vdb-entry
- lstf-iscsirxhandler-dos(66010) vdb-entry
- 1025184 vdb-entry