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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Tue, 29 Sep 2026 19:45:52 +0000</lastBuildDate>
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      <title>CVE-2024-35962 — netfilter: complete validation of user input</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2024-35962</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Siemens RUGGEDCOM RST2428P, Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;netfilter: complete validation of user input&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;
&lt;p&gt;In all functions, we can perform the @optlen validation
before even calling xt_alloc_table_info() with the following
check:&lt;/p&gt;
&lt;p&gt;if ((u64)optlen &amp;lt; (u64)tmp.size + sizeof(tmp))
        return -EINVAL;&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux, Siemens RUGGEDCOM RST2428P, Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family, Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;netfilter: complete validation of user input&lt;/p&gt;
&lt;p&gt;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.&lt;/p&gt;
&lt;p&gt;In all functions, we can perform the @optlen validation
before even calling xt_alloc_table_info() with the following
check:&lt;/p&gt;
&lt;p&gt;if ((u64)optlen &amp;lt; (u64)tmp.size + sizeof(tmp))
        return -EINVAL;&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2024-35962</guid>
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