vulnwire
7.8high

CVE-2016-9576

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, whic…

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 38%
Public exploits
0
none known

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device.

Exploit prediction (EPSS)

0.44% probability of exploitation in the next 30 days, higher than 38% 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
Technology feeds
Linux kernel (RSS, critical only)

References

  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00057.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00088.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a0ac402cfcdc904f9772e1762b3fda112dcc5 · x_refsource_CONFIRM, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00040.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • github.com /torvalds/linux/commit/a0ac402cfcdc904f9772e1762b3fda112dcc56a0 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2017:2669 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00072.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00041.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00062.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00075.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • rhn.redhat.com /errata/RHSA-2017-0817.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00081.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1403145 · x_refsource_CONFIRM, x_transferred
  • kernel.org /pub/linux/kernel/v4.x/ChangeLog-4.8.14 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/12/08/19 · mailing-list, x_refsource_MLIST, 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
  • securityfocus.com /bid/94821 · vdb-entry, x_refsource_BID, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-12/msg00091.html · vendor-advisory, x_refsource_SUSE, x_transferred

Sources

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