CVE-2015-1573

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-05-02 · updated 2026-06-17
Weakness: CWE-19

Description

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.

Affected products

Linux kernel: through 3.18.4

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2f18db0c68fec96631c10cad9384c196e9008ac
http://rhn.redhat.com/errata/RHSA-2015-1137.html
http://rhn.redhat.com/errata/RHSA-2015-1138.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5
http://www.openwall.com/lists/oss-security/2015/02/10/13
http://www.securityfocus.com/bid/72552
https://bugzilla.redhat.com/show_bug.cgi?id=1190966
https://github.com/torvalds/linux/commit/a2f18db0c68fec96631c10cad9384c196e9008ac
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2f18db0c68fec96631c10cad9384c196e9008ac
http://rhn.redhat.com/errata/RHSA-2015-1137.html
http://rhn.redhat.com/errata/RHSA-2015-1138.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5

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