Use After Free in Linux Kernel
CVE-2024-0562
A use-after-free flaw was found in the Linux Kernel. When a disk is removed, bdi_unregister is called to stop further write-back and waits for associated delayed work to complete. However, wb_inode_writeback_end() may schedule bandwidth estimation work after this has completed, which can result in the timer attempting to access the recently freed bdi_writeback.
Vulnerability class: Use-After-Free
EPSS: 0.003 (17.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel — versions 6.0
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 8.6 Extended Update Support — versions 0:4.18.0-372.87.1.el8_6
- Red Hat Enterprise Linux 9
- Red Hat Virtualization 4 For Enterprise Linux 8 — versions 0:4.18.0-372.87.1.el8_6
- Redhat Enterprise_linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- 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, Mailing List)
Frequently asked questions
- What is CVE-2024-0562?
- CVE-2024-0562 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2024-01-15.
- How severe is CVE-2024-0562?
- High severity. CVSS v3 base score is 7.8 out of 10.