Vulnerability · Published Jun 19, 2023 · Assigned by redhat
CVE-2023-3022
Medium 5.5
In plain English
A medium-severity type confusion in Linux Kernel (IPv6). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A flaw was found in the IPv6 module of the Linux kernel. The arg.result was not used consistently in fib6_rule_lookup, sometimes holding rt6_info and other times fib6_info. This was not accounted for in other parts of the code where rt6_info was expected unconditionally, potentially leading to a kernel panic in fib6_rule_suppress.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.2.6-1 | DEBIAN-CVE-2023-3022 |
| Debian:13 | linux | 5.2.6-1 | DEBIAN-CVE-2023-3022 |
| Debian:14 | linux | 5.2.6-1 | DEBIAN-CVE-2023-3022 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2023-3022 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2023-3022 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-3022 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Linux Kernel (IPv6) | Fixed in kernel 5.2-rc1 |
Weakness: CWE-843 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H