Use After Free in Linux Kernel
CVE-2023-3111
A use after free vulnerability was found in prepare_to_relocate in fs/btrfs/relocation.c in btrfs in the Linux Kernel. This possible flaw can be triggered by calling btrfs_ioctl_balance() before calling btrfs_ioctl_defrag().
Vulnerability class: Use-After-Free
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (36.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- patchwork.kernel.org/project/linux-btrfs/patch/20220721074829.2905233-1-r33s3n6…
- security.netapp.com/advisory/ntap-20230703-0007/ (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/07/msg00030.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2023/dsa-5480 (vendor-advisory, VDB Entry, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00027.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-3111?
- CVE-2023-3111 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-06-05.
- How severe is CVE-2023-3111?
- High severity. CVSS v3 base score is 7.8 out of 10.