High severity · published Jul 24, 2023
CVE-2023-3567
Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race
7.1
CVSS
0.4%
EPSS
No
On KEV
Description
A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.
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)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 6.2.0; 6.2.0; 6.2.0; 6.2.0; 6.2.0; 6.2.0; +1 more · source: NVD
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 8.6 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8.8 Extended Update Support · 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 9.0 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9.2 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
EL
Enterprise Linux · Redhat
8.0; 9.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 20.04; 22.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3567
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0412
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0431
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0432
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0439
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0448
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0575
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