Vulnerability · Published May 31, 2022 · Assigned by redhat
CVE-2022-1786
High 7.8
In plain English
A high-severity type confusion in kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.0%top 36.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.14.6-1 | DEBIAN-CVE-2022-1786 |
| Debian:13 | linux | 5.14.6-1 | DEBIAN-CVE-2022-1786 |
| Debian:14 | linux | 5.14.6-1 | DEBIAN-CVE-2022-1786 |
Affected products (as reported)
Weakness: CWE-843
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2087760 x_refsource_MISC
- DSA-5161 vendor-advisory, x_refsource_DEBIAN
- https://security.netapp.com/advisory/ntap-20220722-0001/ x_refsource_CONFIRM