First published: Wed Jul 05 2023(Updated: )
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_SESSION_SETUP commands. The issue results from the lack of control of resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
redhat/kernel | <6.4 | 6.4 |
Red Hat Kernel-devel | ||
Linux Kernel | <=6.3.9 | |
Linux Kernel | >=5.15<5.15.145 | |
Linux Kernel | >=5.16<6.1.29 | |
Linux Kernel | >=6.2<6.2.16 | |
Linux Kernel | >=6.3<6.3.2 | |
NetApp H300S Firmware | ||
NetApp H410S Firmware | ||
NetApp H500e Firmware | ||
NetApp H700S | ||
debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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CVE-2023-32247 has been rated as high severity due to its potential for resource exhaustion and denial of service attacks.
To mitigate CVE-2023-32247, update the Linux kernel to version 6.4 or apply appropriate patches provided by your distribution.
CVE-2023-32247 affects Linux kernel versions between 5.15.0 and 6.3.9, and also some specific versions of minor releases.
Yes, an attacker can exploit CVE-2023-32247 remotely through specially crafted SMB2_SESSION_SETUP commands.
CVE-2023-32247 impacts multiple Linux distributions that utilize the affected kernel versions, including those based on Red Hat and Debian.