Medium severity · published Jan 9, 2024
CVE-2024-0340
Kernel: information disclosure in vhost/vhost.c:vhost_new_msg()
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 6.4; 6.4; 6.4; 6.4; 6.4; 6.4 · source: NVD
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9.4 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-0340
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-0340
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:3618
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:3627
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:9315
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:7526
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2024-0340
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2257406
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