vulnwire
5.5med

CVE-2018-7191

In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice.

Published 7 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.7%
percentile 52%
Public exploits
0
none known

In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.

Exploit prediction (EPSS)

0.65% probability of exploitation in the next 30 days, higher than 52% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.9AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
Technology feeds
Linux kernel (RSS, critical only)

References

  • bugs.launchpad.net /ubuntu/+source/linux/+bug/1743792 · x_refsource_MISC, x_transferred
  • bugs.launchpad.net /ubuntu/+source/linux/+bug/1748846 · x_refsource_MISC, x_transferred
  • github.com /torvalds/linux/commit/0ad646c81b2182f7fa67ec0c8c825e0ee165696d · x_refsource_MISC, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ad646c81b2182f7fa67ec0c8c825e0ee1656 · x_refsource_MISC, x_transferred
  • github.com /torvalds/linux/commit/5c25f65fd1e42685f7ccd80e0621829c105785d9 · x_refsource_MISC, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c25f65fd1e42685f7ccd80e0621829c10578 · x_refsource_MISC, x_transferred
  • cdn.kernel.org /pub/linux/kernel/v4.x/ChangeLog-4.13.14 · x_refsource_MISC, x_transferred
  • securityfocus.com /bid/108380 · vdb-entry, x_refsource_BID, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2019-05/msg00071.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2019-06/msg00039.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2019-06/msg00048.html · vendor-advisory, x_refsource_SUSE, x_transferred

Sources

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