Vulnerability · Published Aug 31, 2022 · Assigned by redhat
CVE-2022-1976
High 7.8
In plain English
A high-severity use-after-free in kernel. 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 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.2%top 85.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.18.14-1 | DEBIAN-CVE-2022-1976 |
| Debian:13 | linux | 5.18.14-1 | DEBIAN-CVE-2022-1976 |
| Debian:14 | linux | 5.18.14-1 | DEBIAN-CVE-2022-1976 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2022-1976 |
Affected products (as reported)
Weakness: CWE-416