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nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace.

🗓️ 21 Jan 2022 08:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

Linux kernel nf_tables bug before 5.12.13 allows local users to trigger denial of service due to missing initialization of nft_set_elem_expr_alloc.

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21 Jan 2022 08:00Current
6.5Medium risk
Vulners AI Score6.5
CVSS 24.9
CVSS 3.15.5
EPSS0.0004
2