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.
References (11)
Core 11
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1040446
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3654-1/
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2018/dsa-4188
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:2948
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1547824
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3654-2/
Third Party Advisory x_refsource_misc
http://lists.openwall.net/netdev/2018/01/27/46
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3656-1/
Patch, Third Party Advisory x_refsource_misc
http://patchwork.ozlabs.org/patch/870355/
Patch, Third Party Advisory x_refsource_misc
https://github.com/torvalds/linux/commit/57ebd808a97d7c5b1e1afb937c2db22beba3c1f8
Patch, Vendor Advisory x_refsource_misc
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=57ebd808a97d7c5b1e1afb937c2db22beba3c1f8
Scores
CVSS v3
4.7
EPSS
0.0008
EPSS Percentile
24.2%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (1)
linux/linux_kernel
< 4.15.7
Published
Mar 02, 2018
Tracked Since
Feb 18, 2026