Vulnerability · Published Nov 28, 2022 · Assigned by redhat
CVE-2022-4127
Medium 5.5
In plain English
A medium-severity null pointer dereference in Linux kernel (io_uring). 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 12% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 88.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A NULL pointer dereference issue was discovered in the Linux kernel in io_files_update_with_index_alloc. A local user could use this flaw to potentially crash the system causing a denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2022-4127 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Linux kernel (io_uring) | Fixed in 5.19 |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H