Vulnerability · Published May 9, 2023 · Assigned by redhat
CVE-2023-2156
High 7.5
In plain English
A high-severity security flaw in Linux kernel (RPL protocol). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 6.2% (higher than 94% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)6.2%top 6.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol. This issue results from the lack of proper handling of user-supplied data, which can lead to an assertion failure. This may allow an unauthenticated remote attacker to create a denial of service condition on the system.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.1.37-1 | DSA-5448-1 |
| Debian:12 | linux | 6.1.37-1 | DEBIAN-CVE-2023-2156 |
| Debian:13 | linux | 6.3.11-1 | DEBIAN-CVE-2023-2156 |
| Debian:14 | linux | 6.3.11-1 | DEBIAN-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux | 5.15.0-86.96 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux | 5.15.0-86.96 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1047.52 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1047.52 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1013.13~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1013.13~22.04.1 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1049.56 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1049.56 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | 6.2.0-1014.14~22.04.1 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | 6.2.0-1014.14~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1049.56.1 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1049.56.1 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | 6.2.0-1014.14~22.04.1.1 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | 6.2.0-1014.14~22.04.1.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1044.52 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1044.52 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1016.18~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | 6.2.0-1016.18~22.04.1 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1044.49 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1044.49 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1030.35 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1030.35 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-34.34~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-34.34~22.04.1 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1040.43 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1040.43 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1043.49 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1043.49 | USN-6445-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1044.49 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1044.49 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-86.95 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-86.95 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1014.14~22.04.1 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1014.14~22.04.1 | USN-6412-1 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1037.37 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1037.37 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1011.11 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | 6.2.0-1011.11 | USN-6466-1 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1018.18 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1005.5 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1014.14 | USN-6173-1 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1016.16 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1045.51 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1045.51 | USN-6416-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1040.43 | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1040.43 | USN-6416-3 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2023-2156 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1025.29 | UBUNTU-CVE-2023-2156 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Linux kernel (RPL protocol) | Reproducible on the latest mainline. |
Weakness: CWE-617
References
- https://www.zerodayinitiative.com/advisories/ZDI-23-547/
- https://bugzilla.redhat.com/show_bug.cgi?id=2196292
- [oss-security] 20230517 Re: IPv6 and Route of Death mailing-list
- [oss-security] 20230517 Re: IPv6 and Route of Death mailing-list
- [oss-security] 20230518 Re: IPv6 and Route of Death mailing-list
- [oss-security] 20230519 Re: IPv6 and Route of Death mailing-list
- https://security.netapp.com/advisory/ntap-20230622-0001/
- DSA-5448 vendor-advisory
- DSA-5453 vendor-advisory
- [debian-lts-announce] 20230802 [SECURITY] [DLA 3512-1] linux-5.10 security update mailing-list