National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-8646 Detail

Description

The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data.

Source:  MITRE
Description Last Modified:  11/27/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
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): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.9 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
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=4afa5f9617927453ac04b24b584f6c718dfb4f45 Issue Tracking Patch Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6 Release Notes
http://www.openwall.com/lists/oss-security/2016/11/15/2 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/94309
https://access.redhat.com/errata/RHSA-2017:1297
https://access.redhat.com/errata/RHSA-2017:1298
https://access.redhat.com/errata/RHSA-2017:1308
https://bugzilla.redhat.com/show_bug.cgi?id=1388821 Issue Tracking
https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45 Issue Tracking Patch Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-8646
NVD Published Date:
11/27/2016
NVD Last Modified:
01/04/2018