vulnwire
7.8high

CVE-2017-17448

net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del o…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 30%
Public exploits
0
none known

net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces.

Exploit prediction (EPSS)

0.36% probability of exploitation in the next 30 days, higher than 30% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.04.6AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • patchwork.kernel.org /patch/10089373/ · x_refsource_MISC, x_transferred
  • usn.ubuntu.com /3617-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • usn.ubuntu.com /3619-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • debian.org /security/2018/dsa-4082 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • usn.ubuntu.com /3617-3/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • usn.ubuntu.com /3632-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • usn.ubuntu.com /3620-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • access.redhat.com /errata/RHSA-2018:1062 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2018:0654 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2018:0676 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • debian.org /security/2017/dsa-4073 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • usn.ubuntu.com /3617-2/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • securityfocus.com /bid/102117 · vdb-entry, x_refsource_BID, x_transferred
  • usn.ubuntu.com /3620-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • usn.ubuntu.com /3619-1/ · vendor-advisory, x_refsource_UBUNTU, 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.