VulnerabilityModified
CVE-2023-4389
This issue may allow a local attacker with user privilege to crash the system or may lead to leaked internal kernel information.
HIGH 7.1EPSS 0.25%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.25% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2023-4389Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2219271Issue Tracking, Third Party Advisory
- https://patchwork.kernel.org/project/linux-btrfs/patch/20220324134454.15192-1-baijiaju1990@gmail.com/Patch, Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2023-4389Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2219271Issue Tracking, Third Party Advisory
- https://patchwork.kernel.org/project/linux-btrfs/patch/20220324134454.15192-1-baijiaju1990@gmail.com/Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.