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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2015-4177 Detail

Description

The collect_mounts function in fs/namespace.c in the Linux kernel before 4.0.5 does not properly consider that it may execute after a path has been unmounted, which allows local users to cause a denial of service (system crash) by leveraging user-namespace root access for an MNT_DETACH umount2 system call.


Evaluator Description

CWE-476: NULL Pointer Dereference

Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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=cd4a40174b71acd021877341684d8bb1dc8ea4ae Vendor Advisory 
http://openwall.com/lists/oss-security/2015/05/29/10
http://openwall.com/lists/oss-security/2015/05/29/5
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.5
http://www.openwall.com/lists/oss-security/2015/06/04/5
https://bugzilla.redhat.com/show_bug.cgi?id=1248486
https://github.com/torvalds/linux/commit/cd4a40174b71acd021877341684d8bb1dc8ea4ae Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-Other Other cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-4177
NVD Published Date:
05/02/2016
NVD Last Modified:
05/06/2016
Source:
Red Hat, Inc.