High severity · published Apr 5, 2023
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
7.1
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
Linux Kernel prior to kernel 5.18 25 · source: vendor, NVD
H3
H300s · Netapp
All versions, or not specified · source: NVD
H4
H410c · Netapp
All versions, or not specified · source: NVD
H4
H410s · Netapp
All versions, or not specified · source: NVD
H5
H500s · Netapp
All versions, or not specified · source: NVD
H7
H700s · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-1838
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-1838
lore.kernel.org
https://lore.kernel.org/netdev/20220516084213.26854-1-jasowang%40redhat.com/T/
security.netapp.com
https://security.netapp.com/advisory/ntap-20230517-0003/
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