National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-6136 Detail

Current Description

Race condition in the audit_log_single_execve_arg function in kernel/auditsc.c in the Linux kernel through 4.7 allows local users to bypass intended character-set restrictions or disrupt system-call auditing by changing a certain string, aka a "double fetch" vulnerability.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.7 MEDIUM
Vector: AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N (V3.0 legend)
Impact Score: 3.6
Exploitability Score: 1.0


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

CVSS v2.0 Severity and Metrics:

Base Score: 1.9 LOW
Vector: (AV:L/AC:M/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.4


Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

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=43761473c254b45883a64441dd0bc85a42f3645c Issue Tracking Patch
http://rhn.redhat.com/errata/RHSA-2016-2574.html
http://rhn.redhat.com/errata/RHSA-2016-2584.html
http://rhn.redhat.com/errata/RHSA-2017-0307.html
http://www.securityfocus.com/archive/1/538835/30/0/threaded Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/91558
https://bugzilla.kernel.org/show_bug.cgi?id=120681 Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1353533 Issue Tracking
https://github.com/linux-audit/audit-kernel/issues/18 Issue Tracking Patch
https://github.com/torvalds/linux/commit/43761473c254b45883a64441dd0bc85a42f3645c Issue Tracking Patch
https://source.android.com/security/bulletin/2016-11-01.html

Technical Details

Vulnerability Type (View All)

  • Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (CWE-362)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.7


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-6136
NVD Published Date:
08/06/2016
NVD Last Modified:
01/04/2018