CVE-2023-53179
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-12-02

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to slab out-of-bound access. This patch adds back the IP_SET_HASH_WITH_NET0 macro to ip_set_hash_netportnet to address the issue.
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Meta Information
Published
2025-09-15
Last Modified
2025-12-02
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53179
Affected Vendors & Products
Showing 17 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 4.4.165 (inc) to 4.5 (exc)
linux linux_kernel From 4.9.141 (inc) to 4.10 (exc)
linux linux_kernel From 4.14.84 (inc) to 4.14.326 (exc)
linux linux_kernel From 4.19.5 (inc) to 4.19.295 (exc)
linux linux_kernel From 4.20.1 (inc) to 5.4.257 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.195 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.132 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.53 (exc)
linux linux_kernel From 6.2 (inc) to 6.4.16 (exc)
linux linux_kernel From 6.5 (inc) to 6.5.3 (exc)
linux linux_kernel 4.20
linux linux_kernel 4.20
linux linux_kernel 4.20
linux linux_kernel 4.20
linux linux_kernel 4.20
linux linux_kernel 4.20
linux linux_kernel 4.20
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability in the Linux kernel's netfilter ipset component is due to a missing macro called IP_SET_HASH_WITH_NET0 in the ip_set_hash_netportnet.c file. The absence of this macro causes incorrect calculation of array offsets using CIDR_POS(c), which can result in an integer underflow. This underflow can lead to slab out-of-bound memory access, potentially causing instability or security issues. The vulnerability is fixed by adding back the missing macro.

Impact Analysis

The vulnerability can lead to slab out-of-bound memory access in the Linux kernel, which may cause system instability, crashes, or potentially allow an attacker to exploit the kernel memory corruption for privilege escalation or denial of service.

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