PT-2023-8751 · Linux+6 · Linux Kernel+6
Pablo Neira Ayuso
·
Published
2023-09-20
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Updated
2025-09-29
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CVE-2023-52581
CVSS v2.0
7.2
High
| Vector | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a memory leak in the netfilter nf tables module when more than 255 elements expire. This causes the system to recycle the initial gc container structure and lose track of previous elements. The
nft trans gc space() function always returns true, preventing the switch to a new gc container structure. This can impact the confidentiality, integrity, and availability of protected information.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Missing Release of Resource after Effective Lifetime
Memory Leak
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Related Identifiers
Affected Products
Almalinux
Centos
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse