Use After Free in Linux Kernel
CVE-2022-2327
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859
Vulnerability class: Use-After-Free
EPSS: 0.003 (19.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Linux Linux_kernel
- Linux Kernel — versions unspecified
Weakness classification (CWE)
References
- cve-coordination@google.com (Patch, Mailing List, Vendor Advisory)
- cve-coordination@google.com (Patch, Third Party Advisory)
- cve-coordination@google.com
Frequently asked questions
- What is CVE-2022-2327?
- CVE-2022-2327 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.5/10. Published 2022-07-22.
- How severe is CVE-2022-2327?
- High severity. CVSS v3 base score is 7.5 out of 10.