PT-2025-40202 · Linux+1 · Linux Kernel+1
Published
2023-09-08
·
Updated
2025-11-19
·
CVE-2023-53495
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel’s ethernet subsystem, specifically within the
mvpp2 ethtool get rxnfc() function. The issue involves a potential out-of-bounds write due to insufficient validation of user-supplied data, specifically the rule cnt variable, before it is used to allocate memory for rules. This could lead to a crash or potentially allow for arbitrary code execution. The rule cnt variable is received from user space and determines the size of the rules allocation. Without proper checks, this can result in an out-of-bounds write or a null pointer dereference.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Corruption
NULL Pointer Dereference
Buffer Overflow
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Related Identifiers
Affected Products
Linux Kernel
Suse