7.8

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, 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.0 < 4.4.38
Linux ≫ Linux Kernel Version >= 4.5 < 4.8.14
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.44% 0.347
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://access.redhat.com/errata/RHSA-2017:1842
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0817.html
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669
Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a0ac402cfcdc904f9772e1762b3fda112dcc56a0
Patch
Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00040.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00041.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html
Third Party Advisory
Mailing List
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14
Vendor Advisory
Release Notes
http://www.openwall.com/lists/oss-security/2016/12/08/19
Patch
Third Party Advisory
Mailing List
http://www.securityfocus.com/bid/94821
Third Party Advisory
VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1403145
Third Party Advisory
Issue Tracking
https://github.com/torvalds/linux/commit/a0ac402cfcdc904f9772e1762b3fda112dcc56a0
Patch
Vendor Advisory