Description
An issue was discovered in Contiki through 3.0. An Out-of-Bounds Read vulnerability exists in the uIP TCP/IP Stack component when calculating the checksums for IP packets in upper_layer_chksum in net/ipv4/uip.c.
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 | 2.1.3-1 | — |
| Debian 13 | open-iscsi | 2.1.3-1 | — |
| Debian 12 | open-iscsi | 2.1.3-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | open-iscsi | 2.0.874-7.1ubuntu6.4 | USN-6259-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | open-iscsi | 2.0.874-5ubuntu2.11+esm1 | USN-6259-1 |
| Ubuntu Pro 16.04 LTS | open-iscsi | 2.0.873+git0.3b4b4500-14ubuntu3.7+esm1 | USN-6259-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | iscsi-initiator-utils +3 | 6.2.1.4-4.git095f59c.el8 | RHBA-2021:4446 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SLES 15 SP2 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1, SUSE-RU-2021:1517-1 |
| SLES 15 SP1 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SLES 15 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SLES 12 SP5 | open-iscsi | 2.0.876-12.27.2 | SUSE-SU-2021:0663-1 |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | open-iscsi | 2.0.876-12.27.2 | SUSE-SU-2021:0663-1 |
| SLES 12 SP3 | open-iscsi | 2.0.876-53.34.1 | SUSE-SU-2022:2806-1 |
| SLES for SAP 15 SP1 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SLES for SAP 15 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SLES for SAP 12 SP5 | open-iscsi | 2.0.876-12.27.2 | SUSE-SU-2021:0663-1 |
| SLES for SAP 12 SP4 | open-iscsi | 2.0.876-12.27.2 | SUSE-SU-2021:0663-1 |
| SLE Micro 5.0 | open-iscsi | 2.1.4-22.14.1 | SUSE-RU-2021:1517-1 |
| SLE HPC 15 SP1 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SLE HPC 15 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SUSE OpenStack Cloud Crowbar 9 | open-iscsi | 2.0.876-12.27.2 | SUSE-SU-2021:0663-1 |
| SUSE OpenStack Cloud 9 | open-iscsi | 2.0.876-12.27.2 | SUSE-SU-2021:0663-1 |
| SUSE Manager Server 4.0 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SUSE Manager Retail Branch Server 4.0 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SUSE Manager Proxy 4.0 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
| SUSE Enterprise Storage 6 | open-iscsi | 2.0.876-13.42.1 | SUSE-SU-2021:1164-1 |
Advisories 10
- RHBA-2021:4446 Red Hat Bug Fix Advisory: iscsi-initiator-utils bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6259-1 open-iscsi vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- SUSE-SU-2022:2806-1 Security update for open-iscsi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1164-1 Security update for open-iscsi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-RU-2021:1517-1 Recommended update for open-iscsi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0663-1 Security update for open-iscsi SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-21-068-06 Siemens TCP/IP Stack Vulnerabilities-AMNESIA:33 in SENTRON PAC / 3VA Devices (Update C) CISA ICS & IT advisories · May 6, 2025
- WID-SEC-2022-1044 TCP/IP Stack: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 27, 2023
- SSA-541018 SSA-541018: Embedded TCP/IP Stack Vulnerabilities (AMNESIA:33) in SENTRON PAC / 3VA Devices (Part 2) Siemens ProductCERT · Mar 8, 2022
- ICSA-20-343-01 Multiple Embedded TCP/IP Stacks CISA ICS & IT advisories · Dec 8, 2020