PT-2025-40712 · Linux+3 · Linux Kernel+3
Published
2022-05-10
·
Updated
2025-11-28
·
CVE-2023-53570
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
An integer overflow exists in the
nl80211 parse mbssid elems() function within the nl80211 module. The function uses a u8 variable, num elems, to count MBSSID elements, which can overflow if a user specifies 256 or more elements. This overflow can lead to a heap buffer overflow because num elems determines the size of the elems array, which is subsequently written to. The issue only affects devices where the wiphy->mbssid max interfaces member is set and can only be triggered by a process with CAP NET ADMIN capabilities.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Heap Based Buffer Overflow
Integer Overflow
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Related Identifiers
Affected Products
Centos
Linux Kernel
Red Hat
Suse