The nft_flush_table function in net/netfilter/nf_tables_api.c in the Linux kernel before 3.18.5 mishandles the interaction between cross-chain jumps and ruleset flushes, which allows local users to cause a denial of service (panic) by leveraging the CAP_NET_ADMIN capability.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1573
Reference (s):
- BID:72552
- URL: http://www.securityfocus.com/bid/72552
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2f18db0c68fec96631c10cad9384c196e9008ac
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5
- https://bugzilla.redhat.com/show_bug.cgi?id=1190966