vulnwire
7.8high

CVE-2016-9806

Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a deni…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 31%
Public exploits
0
none known

Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.

Exploit prediction (EPSS)

0.37% probability of exploitation in the next 30 days, higher than 31% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.17.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
  • CWE-415 Double Free
Technology feeds
Linux kernel (RSS, critical only)

References

  • securityfocus.com /bid/94653 · vdb-entry, x_refsource_BID, x_transferred
  • securitytracker.com /id/1037968 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • openwall.com /lists/oss-security/2016/12/03/4 · mailing-list, x_refsource_MLIST, x_transferred
  • access.redhat.com /errata/RHSA-2017:2669 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • github.com /torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520 · x_refsource_CONFIRM, x_transferred
  • lists.openwall.net /netdev/2016/05/15/69 · mailing-list, x_refsource_MLIST, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2017:2077 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:1842 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • source.android.com /security/bulletin/2017-03-01.html · x_refsource_CONFIRM, x_transferred
  • kernel.org /pub/linux/kernel/v4.x/ChangeLog-4.6.3 · x_refsource_CONFIRM, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1401502 · x_refsource_CONFIRM, 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.