National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2017-11176 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  07/11/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1 Issue Tracking Patch Third Party Advisory
http://www.debian.org/security/2017/dsa-3927 Third Party Advisory
http://www.debian.org/security/2017/dsa-3945 Third Party Advisory
http://www.securityfocus.com/bid/99919 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2918 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2930 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2931 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0169 Third Party Advisory
https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1 Issue Tracking Patch Third Party Advisory
https://www.exploit-db.com/exploits/45553/

Technical Details

Vulnerability Type (View All)

Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-11176
NVD Published Date:
07/11/2017
NVD Last Modified:
10/09/2018