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Vulnerabilities CVE-2024-35962

CVE-2024-35962

High
Open
TLP:CLEAR

netfilter: complete validation of user input

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Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: complete validation of user input In my recent commit, I missed that do_replace() handlers use copy_from_sockptr() (which I fixed), followed by unsafe copy_from_sockptr_offset() calls. In all functions, we can perform the @optlen validation before even calling xt_alloc_table_info() with the following check: if ((u64)optlen < (u64)tmp.size + sizeof(tmp)) return -EINVAL;

Details

CVSS Score
7.1
EPSS Score
0.24%

14.9th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Confidence
90%
Published
May 20, 2024
Last Modified
Aug 5, 2026
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