CVE-2018-1065

Summary

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.

Affected Software

Weaknesses

• NULL pointer dereference

ADP Enrichment

CVE Program Container

Additional References

• http://www.securitytracker.com/id/1040446
• https://usn.ubuntu.com/3654-1/
• https://www.debian.org/security/2018/dsa-4188
• https://access.redhat.com/errata/RHSA-2018:2948
• https://bugzilla.redhat.com/show_bug.cgi?id=1547824
• https://usn.ubuntu.com/3654-2/
• http://lists.openwall.net/netdev/2018/01/27/46
• https://usn.ubuntu.com/3656-1/
• http://patchwork.ozlabs.org/patch/870355/
• https://github.com/torvalds/linux/commit/57ebd808a97d7c5b1e1afb937c2db22beba3c1f8
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=57ebd808a97d7c5b1e1afb937c2db22beba3c1f8

References

• http://www.securitytracker.com/id/1040446
• https://usn.ubuntu.com/3654-1/
• https://www.debian.org/security/2018/dsa-4188
• https://access.redhat.com/errata/RHSA-2018:2948
• https://bugzilla.redhat.com/show_bug.cgi?id=1547824
• https://usn.ubuntu.com/3654-2/
• http://lists.openwall.net/netdev/2018/01/27/46
• https://usn.ubuntu.com/3656-1/
• http://patchwork.ozlabs.org/patch/870355/
• https://github.com/torvalds/linux/commit/57ebd808a97d7c5b1e1afb937c2db22beba3c1f8
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=57ebd808a97d7c5b1e1afb937c2db22beba3c1f8

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