CVE-2016-9576

HIGH

Description

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.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a0ac402cfcdc904f9772e1762b3fda112dcc56a0

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00040.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00041.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html

http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html

http://rhn.redhat.com/errata/RHSA-2017-0817.html

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14

http://www.openwall.com/lists/oss-security/2016/12/08/19

http://www.securityfocus.com/bid/94821

https://access.redhat.com/errata/RHSA-2017:1842

https://access.redhat.com/errata/RHSA-2017:2077

https://access.redhat.com/errata/RHSA-2017:2669

https://bugzilla.redhat.com/show_bug.cgi?id=1403145

https://github.com/torvalds/linux/commit/a0ac402cfcdc904f9772e1762b3fda112dcc56a0

Details

Source: MITRE

Published: 2016-12-28

Updated: 2018-01-05

Type: CWE-416

Risk Information

CVSS v2.0

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.8.13 (inclusive)

Tenable Plugins

View all (48 total)

IDNameProductFamilySeverity
127351NewStart CGSL MAIN 4.05 : kernel Multiple Vulnerabilities (NS-SA-2019-0113)NessusNewStart CGSL Local Security Checks
high
124975EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1522)NessusHuawei Local Security Checks
high
124819EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1496)NessusHuawei Local Security Checks
critical
104366F5 Networks BIG-IP : Linux kernel vulnerability (K05513373)NessusF5 Networks Local Security Checks
high
104307F5 Networks BIG-IP : Linux kernel vulnerability (K54610514)NessusF5 Networks Local Security Checks
high
103046RHEL 6 : MRG (RHSA-2017:2669)NessusRed Hat Local Security Checks
high
102734CentOS 7 : kernel (CESA-2017:1842) (Stack Clash)NessusCentOS Local Security Checks
high
102645Scientific Linux Security Update : kernel on SL7.x x86_64 (20170801)NessusScientific Linux Local Security Checks
high
102511Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)NessusOracle Linux Local Security Checks
critical
102281Oracle Linux 7 : kernel (ELSA-2017-1842) (Stack Clash)NessusOracle Linux Local Security Checks
high
102151RHEL 7 : kernel-rt (RHSA-2017:2077)NessusRed Hat Local Security Checks
high
102143RHEL 7 : kernel (RHSA-2017:1842) (Stack Clash)NessusRed Hat Local Security Checks
high
99848EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1001)NessusHuawei Local Security Checks
critical
99218Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20170321)NessusScientific Linux Local Security Checks
high
99106Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2017-025)NessusVirtuozzo Local Security Checks
critical
99074Oracle Linux 6 : kernel (ELSA-2017-0817)NessusOracle Linux Local Security Checks
high
97962CentOS 6 : kernel (CESA-2017:0817)NessusCentOS Local Security Checks
high
97886RHEL 6 : kernel (RHSA-2017:0817)NessusRed Hat Local Security Checks
high
97297SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0494-1)NessusSuSE Local Security Checks
critical
97205SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0471-1)NessusSuSE Local Security Checks
high
97189SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:0464-1)NessusSuSE Local Security Checks
high
97138openSUSE Security Update : the Linux Kernel (openSUSE-2017-246)NessusSuSE Local Security Checks
critical
97097SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0437-1)NessusSuSE Local Security Checks
critical
97079OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0039)NessusOracleVM Local Security Checks
high
97057Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3514)NessusOracle Linux Local Security Checks
high
96903SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0333-1)NessusSuSE Local Security Checks
critical
96762SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0268-1)NessusSuSE Local Security Checks
high
96761SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0267-1)NessusSuSE Local Security Checks
high
96702SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0249-1)NessusSuSE Local Security Checks
high
96701SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0248-1)NessusSuSE Local Security Checks
high
96700SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0247-1)NessusSuSE Local Security Checks
high
96699SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0246-1)NessusSuSE Local Security Checks
high
96698SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0245-1)NessusSuSE Local Security Checks
high
96697SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0244-1)NessusSuSE Local Security Checks
high
96284Amazon Linux AMI : kernel (ALAS-2017-782)NessusAmazon Linux Local Security Checks
high
96188Debian DLA-772-1 : linux security updateNessusDebian Local Security Checks
critical
96137SUSE SLES11 Security Update : kernel (SUSE-SU-2016:3252-1)NessusSuSE Local Security Checks
high
96089SUSE SLES11 Security Update : kernel (SUSE-SU-2016:3248-1)NessusSuSE Local Security Checks
high
96080SUSE SLES12 Security Update : kernel (SUSE-SU-2016:3217-1)NessusSuSE Local Security Checks
high
95991SUSE SLES11 Security Update : kernel (SUSE-SU-2016:3203-1)NessusSuSE Local Security Checks
high
96033SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:3188-1)NessusSuSE Local Security Checks
high
95806SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:3146-1)NessusSuSE Local Security Checks
high
95789openSUSE Security Update : the Linux Kernel (openSUSE-2016-1454)NessusSuSE Local Security Checks
high
95778Fedora 23 : kernel (2016-5aff4a6bbc)NessusFedora Local Security Checks
high
95745openSUSE Security Update : the openSUSE Leap 42.1 kernel. (openSUSE-2016-1439)NessusSuSE Local Security Checks
high
95744openSUSE Security Update : the Linux Kernel (openSUSE-2016-1438)NessusSuSE Local Security Checks
high
95727Fedora 24 : kernel (2016-5cb5b4082d)NessusFedora Local Security Checks
high
95726Fedora 25 : kernel (2016-107f03cc00)NessusFedora Local Security Checks
high