Double Free in Linux Kernel
CVE-2023-4389
A flaw was found in btrfs_get_root_ref in fs/btrfs/disk-io.c in the btrfs filesystem in the Linux Kernel due to a double decrement of the reference count. This issue may allow a local attacker with user privilege to crash the system or may lead to leaked internal kernel information.
Vulnerability class: Double Free
EPSS: 0.003 (16.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-4389?
- CVE-2023-4389 is a high-severity vulnerability in Linux Kernel, classified under Double Free. CVSS score: 7.0/10. Published 2023-08-16.
- How severe is CVE-2023-4389?
- High severity. CVSS v3 base score is 7.0 out of 10.