Use After Free in Linux Kernel
CVE-2023-4394
A use-after-free flaw was found in btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system in the Linux Kernel. This flaw allows a local attacker with special privileges to cause a system crash or leak internal kernel information
Vulnerability class: DoS (Denial of Service)
EPSS: 0.002 (11.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel — versions 6.0
- Fedora
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- N/a Kernel — versions 6.0-rc3
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry, Issue Tracking)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Patch, Mailing List, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-4394?
- CVE-2023-4394 is a medium-severity vulnerability in Linux Kernel, classified under Uncontrolled Resource Consumption. CVSS score: 6.7/10. Published 2023-08-17.
- How severe is CVE-2023-4394?
- Medium severity. CVSS v3 base score is 6.7 out of 10.