Vulnerability · Published Aug 29, 2022 · Assigned by redhat
CVE-2022-1043
High 8.8
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 3.8% (higher than 90% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)3.8%top 9.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Metasploit
Official description
A flaw was found in the Linux kernel’s io_uring implementation. This flaw allows an attacker with a local account to corrupt system memory, crash the system or escalate privileges.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.14.6-1 | DEBIAN-CVE-2022-1043 |
| Debian:13 | linux | 5.14.6-1 | DEBIAN-CVE-2022-1043 |
| Debian:14 | linux | 5.14.6-1 | DEBIAN-CVE-2022-1043 |
Affected products (as reported)
Weakness: CWE-416
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1997328
- https://www.zerodayinitiative.com/advisories/ZDI-22-362/
- https://github.com/torvalds/linux/commit/a30f895ad3239f45012e860d4f94c1a388b36d14
- https://access.redhat.com/security/cve/CVE-2022-1043
- http://packetstormsecurity.com/files/170834/io_uring-Same-Type-Object-Reuse-Privilege-Escalation.html