CVE-2024-35962High· 7.1▾ TwilightIn 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_…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
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;
linux_kernel >= 5.15.154, < 5.15.156linux_kernel >= 6.1.85, < 6.1.87linux_kernel >= 6.6.26, < 6.6.28linux_kernel >= 6.8.5, < 6.8.7linux_kernel = 5.10.215linux_kernel = 6.9debian_linux = 10.0Upgrade past the affected range:
linux_kernel 6.8.7Connected by shared product, vendor, weakness, or advisory.
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