CVE-2023-4389
low-risk
Published 2023-08-16
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.
Do I need to act?
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0.02% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.0/10
High
LOCAL
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (6)
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4389
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2219271
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4389
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2219271
23
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal