Use After Free in Linux Kernel
CVE-2022-1043
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.039 (89.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.038 · newest: 0.039 · change: +0.001
Affected products
- Linux Kernel
- Kernel — versions Fixed in kernel v5.14 rc7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.zerodayinitiative.com/advisories/ZDI-22-362/ (VDB Entry, Third Party Advisory)
- github.com/torvalds/linux/commit/a30f895ad3239f45012e860d4f94c1a388b36d14 (Patch, Third Party Advisory)
- access.redhat.com/security/cve/CVE-2022-1043 (Third Party Advisory)
- packetstormsecurity.com/files/170834/io_uring-Same-Type-Object-Reuse-Privilege-… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-1043?
- CVE-2022-1043 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 8.8/10. Published 2022-08-29.
- How severe is CVE-2022-1043?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-1043 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.