Description
The iscsi_if_rx function in drivers/scsi/scsi_transport_iscsi.c in the Linux kernel through 4.13.2 allows local users to cause a denial of service (panic) by leveraging incorrect length validation.
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 | linux | 4.12.13-1 | — |
| Debian 13 | linux | 4.12.13-1 | — |
| Debian 12 | linux | 4.12.13-1 | — |
| Debian 9 | linux | 4.9.30-2+deb9u5 | DSA-3981-1 |
| Debian 8 | linux | 3.16.43-2+deb8u5 | DSA-3981-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | linux | 3.2.93-1 | DLA-1099-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-98.121 | USN-3469-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1039.48 | USN-3469-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.13.0-1005.7 | — |
| Ubuntu 16.04 LTS | linux-gcp | 4.13.0-1002.5 | — |
| Ubuntu 16.04 LTS | linux-gke | 4.4.0-1033.33 | USN-3469-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.13.0-32.35~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1009.14 | USN-3469-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1076.84 | USN-3469-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1078.83 | USN-3469-1 |
| Ubuntu 14.04 LTS | linux | 3.13.0-142.191 | USN-3583-1 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-98.121~14.04.1 | USN-3469-2 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | kernel-docs | 4.4.92-6.18.3 | SUSE-SU-2017:2847-1 |
| SLES 12 SP3 | kernel-syms +3 | 4.4.92-6.18.1 | SUSE-SU-2017:2847-1 |
| SLES 12 SP2 | kernel-docs | 4.4.90-92.45.3 | SUSE-SU-2017:2869-1 |
| SLES 12 SP2 | kernel-syms +3 | 4.4.90-92.45.1 | SUSE-SU-2017:2869-1 |
| SLES 11 SP4 | kernel-docs | 3.0.101-108.18.3 | SUSE-SU-2017:3265-1 |
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-108.18.1 | SUSE-SU-2017:3265-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.92-6.18.1 | SUSE-SU-2017:2847-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.90-92.45.1 | SUSE-SU-2017:2869-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-108.18.1 | SUSE-SU-2017:3265-1 |
| SLE Real Time 12 SP2 | kernel-rt +3 | 4.4.95-21.1 | SUSE-SU-2017:3267-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.11.1 | SUSE-SU-2017:3165-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_4 | 1-4.3 | SUSE-SU-2017:2847-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_14 | 1-2.4 | SUSE-SU-2017:2869-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.19.12.el6uek | 0.4.5-3.el6 | ELSA-2017-3636 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.19.12.el7uek | 0.4.5-3.el7 | ELSA-2017-3636 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.19.12.el7uek | ELSA-2017-3636, ELSA-2017-3635 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Linux Kernel < 4.14.rc3 - Local Denial of Service EDB-42932 · dos · Oct 2, 2017
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 12
- USN-3583-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3469-1 linux, linux-aws, linux-gke, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3981-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1099-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3469-2 linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:3165-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:3265-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:3267-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2869-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2847-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2017-3635 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 2, 2017
- ELSA-2017-3636 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 2, 2017
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1490421
- USN-3583-2 vendor-advisory
- https://patchwork.kernel.org/patch/9923803/
- DSA-3981 vendor-advisory
- USN-3583-1 vendor-advisory
- 101011 vdb-entry
- 42932 exploit