CVE-2023-3567

Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race

CVSS 7.1 HIGHEPSS 0.4%CWE-416

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.1EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

24 Jul 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected products

Red Hat · Red Hat Enterprise Linux 6 Red Hat · Red Hat Enterprise Linux 7 Red Hat · Red Hat Enterprise Linux 8 Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat · Red Hat Enterprise Linux 9 Red Hat · Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat · Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8

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References