Memory Information Disclosure Vulnerability in Linux Kernel Socket Filter

CVE-2010-4158 · LOW Severity

AV:L/AC:L/AU:N/C:P/I:N/A:N

The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to obtain potentially sensitive information from kernel stack memory via a crafted socket filter.

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