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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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      <title>CVE-2023-3609 — Use-after-free in Linux kernel's net/sched: cls_u32 component</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2023-3609</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux Kernel&lt;/p&gt;
&lt;p&gt;A use-after-free vulnerability in the Linux kernel&amp;#39;s net/sched: cls_u32 component can be exploited to achieve local privilege escalation.&lt;/p&gt;
&lt;p&gt;If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.&lt;/p&gt;
&lt;p&gt;We recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux Kernel&lt;/p&gt;
&lt;p&gt;A use-after-free vulnerability in the Linux kernel&amp;#39;s net/sched: cls_u32 component can be exploited to achieve local privilege escalation.&lt;/p&gt;
&lt;p&gt;If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.&lt;/p&gt;
&lt;p&gt;We recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.&lt;/p&gt;</content:encoded>
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