CVE-2015-1573

low-risk

Published 2016-05-02

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.

Do I need to act?

0.04% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Linux Kernel

Affected Vendors

Linux

References (16)

Vendor Advisory http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2f18d...

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

Vendor Advisory https://github.com/torvalds/linux/commit/a2f18db0c68fec96631c10cad9384c196e9008a...

Vendor Advisory http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2f18d...

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

Vendor Advisory https://github.com/torvalds/linux/commit/a2f18db0c68fec96631c10cad9384c196e9008a...

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low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal