PT-2023-8733 · Linux+9 · Linux Kernel+9
Ziyang Xuan
·
Published
2023-09-19
·
Updated
2025-12-16
·
CVE-2023-52574
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a null pointer dereference error in the Linux kernel's team component when the team device type is changed from non-ether to ether. This occurs because the header ops of the team device are incorrectly changed to vlan header ops, triggering a null-ptr-deref for
vlan->real dev in the vlan dev hard header() function. The error happens when a VLAN device is enslaved to a team device and the team device type is changed. To fix the bug, eth header ops should be cached in team setup() and then assigned to the header ops of the team net device when its type is changed.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu