Vulnerability · Published Jan 25, 2023 · Assigned by redhat
CVE-2023-0469
Medium 5.5
In plain English
A medium-severity use-after-free in Kernel. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 74.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A use-after-free flaw was found in io_uring/filetable.c in io_install_fixed_file in the io_uring subcomponent in the Linux Kernel during call cleanup. This flaw may lead to a denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.0.12-1 | DEBIAN-CVE-2023-0469 |
| Debian:13 | linux | 6.0.12-1 | DEBIAN-CVE-2023-0469 |
| Debian:14 | linux | 6.0.12-1 | DEBIAN-CVE-2023-0469 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | 5.19.0-1022.23~22.04.1 | UBUNTU-CVE-2023-0469 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | 5.19.0-38.39~22.04.1 | USN-5979-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | 5.19.0-38.39~22.04.1 | UBUNTU-CVE-2023-0469 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | 5.19.0-1021.22~22.04.1 | UBUNTU-CVE-2023-0469 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 6.0.0-1012.12 | USN-5914-1 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 6.0.0-1012.12 | UBUNTU-CVE-2023-0469 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-0469 |
Affected products (as reported)
Weakness: CWE-191, CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H