Description
A flaw was found in Linux, in targetcli-fb versions 2.1.50 and 2.1.51 where the socket used by targetclid was world-writable. If a system enables the targetclid socket, a local attacker can use this flaw to modify the iSCSI configuration and escalate their privileges to root.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Datera | targetcli | Fixed in targetcli-fb 2.1.52 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | targetcli-fb | 1:2.1.51-0ubuntu1+esm1 | USN-4871-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | targetcli | 2.1.51-4.el8_2 | RHSA-2020:1933 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | targetcli | 2.1.54-1.2 | openSUSE-SU-2024:11423-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | targetcli | 2.1.53-r0 | — |
| Alpine v3.23 | targetcli | 2.1.53-r0 | — |
| Alpine v3.22 | targetcli | 2.1.53-r0 | — |
| Alpine v3.21 | targetcli | 2.1.53-r0 | — |
| Alpine v3.20 | targetcli | 2.1.53-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | targetcli | 2.1.53-r0 | — |
| Alpine v3.18 | targetcli | 2.1.53-r0 | — |
| Alpine v3.17 | targetcli | 2.1.53-r0 | — |
| Alpine v3.16 | targetcli | 2.1.53-r0 | — |
| Alpine v3.15 | targetcli | 2.1.53-r0 | — |
| Alpine v3.14 | targetcli | 2.1.53-r0 | — |
| Alpine v3.13 | targetcli | 2.1.53-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | targetcli | 2.1.51-4.el8_2 | ELSA-2020-1933 |
Advisories 4
- USN-4871-1 targetcli-fb vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:11423-1 python36-targetcli-fb-2.1.54-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2020:1933 Red Hat Security Advisory: targetcli security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ELSA-2020-1933 Important: targetcli security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 7, 2020