Use After Free in Linux Kernel
CVE-2023-1838
A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (15.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.0% 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
- Linux Kernel
- NetApp H300s
- NetApp H410c
- NetApp H410s
- NetApp H500s
- NetApp H700s
- Kernel — versions Linux Kernel prior to kernel 5.18 25
Weakness classification (CWE)
References
- lore.kernel.org/netdev/20220516084213.26854-1-jasowang@redhat.com/T/ (Third Party Advisory)
- security.netapp.com/advisory/ntap-20230517-0003/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-1838?
- CVE-2023-1838 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.1/10. Published 2023-04-05.
- How severe is CVE-2023-1838?
- High severity. CVSS v3 base score is 7.1 out of 10.