Description
In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.
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 | 5.14.6-1 | — |
| Debian 13 | linux | 5.14.6-1 | — |
| Debian 12 | linux | 5.14.6-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-84.94 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1056.59 | — |
| Ubuntu 20.04 LTS | linux-aws-5.11 +1 | 5.11.0-1019.20~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1058.60 | — |
| Ubuntu 20.04 LTS | linux-azure-5.11 | 5.11.0-1017.18~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1019.22 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1052.56 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.11 | 5.11.0-1020.22~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1052.55 | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1023.24 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1046.48 | — |
| Ubuntu 20.04 LTS | linux-oem-5.10 | 5.10.0-1049.51 | — |
| Ubuntu 20.04 LTS | linux-oem-5.13 | 5.13.0-1014.18 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1054.58 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1043.47 | — |
| Ubuntu 20.04 LTS | linux-riscv +10 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv-5.11 | 5.11.0-1020.21~20.04.1 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-156.163 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1111.118 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1056.59~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1123.136 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1058.60~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1027.32 | — |
| Ubuntu 18.04 LTS | linux-gcp +12 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1108.122 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1052.56~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gke-5.4 | 5.4.0-1052.55~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | 5.4.0-1023.24~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-84.94~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1099.101 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1080.88 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1054.58~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1043.47~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1095.101 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1112.121 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1069.73+fips2 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1073.76+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1033.38 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2053.55 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2035.39 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1069.78 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2018.20 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1069.75 | — |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1114.123~20.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-219.252 | USN-5343-1, USN-5299-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1135.149 | USN-5343-1, USN-5299-1 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1111.118~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1123.136~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1108.122~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-156.163~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1100.109 | USN-5343-1, USN-5299-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1080.88~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1099.104 | USN-5343-1, USN-5299-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1123.136~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-219.252~14.04.1 | USN-5343-1, USN-5299-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-372.9.1.rt7.166.el8 | RHSA-2022:1975 |
| RHEL 8 | perf +26 | 4.18.0-372.9.1.el8 | RHSA-2022:1988 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.4 EUS | kernel-rt +12 | 4.18.0-305.65.1.rt7.137.el8_4 | RHSA-2022:6991 |
| RHEL 8.4 EUS | perf +26 | 4.18.0-305.65.1.el8_4 | RHSA-2022:6983 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | perf +19 | 4.18.0-372.9.1.el8 | ALSA-2022:1988 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-372.9.1.el8 | RLSA-2022:1988 |
| Rocky Linux 8 | kernel-rt | 4.18.0-372.9.1.rt7.166.el8 | RLSA-2022:1975 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-59.40.1 | SUSE-SU-2022:0198-1, SUSE-SU-2022:0131-1 |
| SLES 15 SP3 | kernel-azure +2 | 5.3.18-38.34.1 | SUSE-SU-2022:0169-1, SUSE-SU-2022:0056-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-59.40.1.18.25.1 | SUSE-SU-2022:0198-1, SUSE-SU-2022:0131-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.85.1 | SUSE-SU-2022:0080-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.106.1 | SUSE-SU-2022:0068-1 |
| SLES 12 SP3 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.164.1 | SUSE-SU-2022:0477-1 |
Show 20 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.85.1 | SUSE-SU-2022:0080-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.106.1 | SUSE-SU-2022:0068-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.73.1 | SUSE-SU-2022:0090-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-59.40.1 | SUSE-SU-2022:0198-1, SUSE-SU-2022:0131-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-59.40.1.18.25.1 | SUSE-SU-2022:0198-1, SUSE-SU-2022:0131-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-68.1 | SUSE-SU-2022:0079-1 |
| SLE Micro 5.0 | kernel-default | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLE Micro 5.0 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SLE Micro 5.0 | kernel-rt | 5.3.18-68.1 | SUSE-SU-2022:0289-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-59.40.1 | SUSE-SU-2022:0198-1, SUSE-SU-2022:0131-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_11 | 1-7.3.1 | SUSE-SU-2022:0131-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_12 | 1-150300.7.3.1 | SUSE-SU-2022:0198-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_23 | 1-5.3.1 | SUSE-SU-2022:0197-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.106.1 | SUSE-SU-2022:0068-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_27 | 1-8.3.1 | SUSE-SU-2022:0068-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-68.1 | SUSE-SU-2022:0079-1 |
| SUSE Real Time Module 15 SP2 | kernel-rt +3 | 5.3.18-68.1 | SUSE-SU-2022:0289-1 |
| SUSE Package Hub 15 SP3 | connman | 1.41-bp153.2.3.1 | openSUSE-SU-2022:0056-1 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SUSE OpenStack Cloud Crowbar 8 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SUSE OpenStack Cloud 8 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SUSE OpenStack Cloud 8 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SUSE Manager Server 4.1 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Server 4.1 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Retail Branch Server 4.1 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Retail Branch Server 4.1 | kernel-docs +4 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Proxy 4.1 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Proxy 4.1 | kernel-docs +4 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SUSE HPE Helion OpenStack 8 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SUSE HPE Helion OpenStack 8 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SUSE Enterprise Storage 7 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SUSE Enterprise Storage 7 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | connman | 1.41-bp153.2.3.1 | openSUSE-SU-2022:0056-1 |
| openSUSE Leap 15.3 | dtb-aarch64 +11 | 5.3.18-59.40.1 | openSUSE-SU-2022:0198-1, openSUSE-SU-2022:0131-1 |
| openSUSE Leap 15.3 | kernel-azure +2 | 5.3.18-38.34.1 | openSUSE-SU-2022:0169-1, openSUSE-SU-2022:0056-1 |
| openSUSE Leap 15.3 | kernel-default-base | 5.3.18-59.40.1.18.25.1 | openSUSE-SU-2022:0198-1, openSUSE-SU-2022:0131-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.2.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-372.9.1.el8 | ELSA-2022-1988 |
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.
GitHub 1 repository
-
Satheesh575555/linux-4.19.72_CVE-2021-45485 ★ 0 · Apr 28, 2022
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 29
- ALSA-2022:1988 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2022:1988 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:1975 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:6991 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2022:6983 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-5299-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-5343-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- RLSA-2022:1975 Important: kernel-rt security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2022:1988 Important: kernel security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2022:0056-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0090-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0289-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0169-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0169-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0080-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0477-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0362-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0131-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0056-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0198-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0131-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0068-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0197-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0198-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0079-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2022-0232 Linux Kernel: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen BSI CERT-Bund (WID) · Aug 13, 2023
- WID-SEC-2023-1969 HPE Fabric OS: Mehrere Schwachstellen ermöglichen Privilegieneskalation BSI CERT-Bund (WID) · Aug 6, 2023
- WID-SEC-2022-0515 IBM Spectrum Protect: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 8, 2023
- ELSA-2022-1988 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 17, 2022
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
- https://arxiv.org/pdf/2112.09604.pdf
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://security.netapp.com/advisory/ntap-20220121-0001/