Use After Free in Linux Kernel
CVE-2023-33250
The Linux kernel 6.3 has a use-after-free in iopt_unmap_iova_range in drivers/iommu/iommufd/io_pagetable.c.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (14.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- groups.google.com/g/syzkaller/c/G6P9yecsTZ8/m/iiqFVOM9BwAJ (Mailing List, Third Party Advisory)
- lore.kernel.org/linux-iommu/ZDabT/uRl/jxFhm0@ip-172-31-85-199.ec2.internal/T/
- security.netapp.com/advisory/ntap-20230622-0006/ (Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/
- bugzilla.suse.com/show_bug.cgi
Frequently asked questions
- What is CVE-2023-33250?
- CVE-2023-33250 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 4.4/10. Published 2023-05-21.
- How severe is CVE-2023-33250?
- Medium severity. CVSS v3 base score is 4.4 out of 10.