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Red Hat: CVE-2018-1065: Important: kernel-alt security, bug fix, and enhancement update (RHSA-2018:2948)

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Red Hat: CVE-2018-1065: Important: kernel-alt security, bug fix, and enhancement update (RHSA-2018:2948)

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
03/02/2018
Created
03/19/2019
Added
10/31/2018
Modified
03/03/2021

Description

The netfilter subsystem in the Linux kernel through 4.15.7 mishandles the case of a rule blob that contains a jump but lacks a user-defined chain, which allows local users to cause a denial of service (NULL pointer dereference) by leveraging the CAP_NET_RAW or CAP_NET_ADMIN capability, related to arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and ip6t_do_table in net/ipv6/netfilter/ip6_tables.c.

Solution(s)

  • redhat-upgrade-kernel

References

  • DSA-4188
  • CVE-2018-1065
  • RHSA-2018:2948

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