Use After Free in Linux Kernel
CVE-2023-2513
A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors.
Vulnerability class: Use-After-Free
EPSS: 0.002 (15.5th 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
- Redhat Enterprise_linux — versions 6.0, 7.0, 8.0
- N/a Linux Kernel Ext4 Filesystem — versions Fixed in kernel 6.0-rc1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com
- secalert@redhat.com (Patch)
- secalert@redhat.com (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2023-2513?
- CVE-2023-2513 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 6.7/10. Published 2023-05-08.
- How severe is CVE-2023-2513?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2023-2513 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.