CVE-2017-11176

The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

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

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1	Issue Tracking Patch Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1	Issue Tracking Patch Third Party Advisory
http://www.securityfocus.com/bid/99919	Third Party Advisory VDB Entry
http://www.debian.org/security/2017/dsa-3945	Third Party Advisory
http://www.debian.org/security/2017/dsa-3927	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2931	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2930	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2918	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0169	Third Party Advisory
https://www.exploit-db.com/exploits/45553/
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
https://access.redhat.com/errata/RHSA-2018:3822

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Information

Published : 2017-07-11 23:29

Updated : 2018-12-13 11:29

NVD link : CVE-2017-11176

Mitre link : CVE-2017-11176

JSON object : View

Products Affected

linux

linux_kernel

debian

debian_linux

CWE

CWE-416

Use After Free

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