The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel up to and including 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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linux linux kernel |
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debian debian linux 7.0 |
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canonical ubuntu linux 13.10 |
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canonical ubuntu linux 12.04 |
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canonical ubuntu linux 10.04 |
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oracle linux 6 |
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oracle linux 7 |