vulnwire
4.7med

CVE-2018-1065

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…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
4.7
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 38%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

0.43% probability of exploitation in the next 30 days, higher than 38% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.04.7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.7AV:L/AC:M/Au:N/C:N/I:N/A:C

Affected products

  • n/a Linux kernel 4.15.0-rc9

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • securitytracker.com /id/1040446 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • usn.ubuntu.com /3654-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • debian.org /security/2018/dsa-4188 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • access.redhat.com /errata/RHSA-2018:2948 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1547824 · x_refsource_MISC, x_transferred
  • usn.ubuntu.com /3654-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • lists.openwall.net /netdev/2018/01/27/46 · x_refsource_MISC, x_transferred
  • usn.ubuntu.com /3656-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • patchwork.ozlabs.org /patch/870355/ · x_refsource_MISC, x_transferred
  • github.com /torvalds/linux/commit/57ebd808a97d7c5b1e1afb937c2db22beba3c1f8 · x_refsource_MISC, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=57ebd808a97d7c5b1e1afb937c2db22beba3c · x_refsource_MISC, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.