CVE-2025-21826
netfilter: nf_tables: reject mismatching sum of field_len with set key length
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of field_len with set key length The field length description provides the length of each separated key
field in the concatenation, each field gets rounded up to 32-bits to
calculate the pipapo rule width from pipapo_init(). The set key length
provides the total size of the key aligned to 32-bits. Register-based arithmetics still allows for combining mismatching set
key length and field length description, eg. set key length 10 and field
description [ 5, 4 ] leading to pipapo width of 12.
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of field_len with set key length The field length description provides the length of each separated key field in the concatenation, each field gets rounded up to 32-bits to calculate the pipapo rule width from pipapo_init(). The set key length provides the total size of the key aligned to 32-bits. Register-based arithmetics still allows for combining mismatching set key length and field length description, eg. set key length 10 and field description [ 5, 4 ] leading to pipapo width of 12.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2024-12-29 CVE Reserved
- 2025-03-06 CVE Published
- 2025-03-06 CVE Updated
- 2025-03-07 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/9cb084df01e198119de477ac691d682fb01e80f3 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/dc45bb00e66a33de1abb29e3d587880e1d4d9a7e | Vuln. Introduced | |
| https://git.kernel.org/stable/c/3ce67e3793f48c1b9635beb9bb71116ca1e51b58 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/2d4c0798a1ef8db15b3277697ac2def4eda42312 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/77be8c495a3f841e88b46508cc20d3d7d3289da3 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/ff67e3e488090908dc015ba04d7407d8bd467f7e | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.1.75 < 6.1.129 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1.75 < 6.1.129" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.6.14 < 6.6.76 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6.14 < 6.6.76" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.8 < 6.12.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.12.13" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.8 < 6.13.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.13.2" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.8 < 6.14-rc1 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.14-rc1" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.10.209 Search vendor "Linux" for product "Linux Kernel" and version "5.10.209" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.15.148 Search vendor "Linux" for product "Linux Kernel" and version "5.15.148" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.7.2 Search vendor "Linux" for product "Linux Kernel" and version "6.7.2" | en |
Affected
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