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CVE-2015-4176

Date: May 2, 2016

fs/namespace.c in the Linux kernel before 4.0.2 does not properly support mount connectivity, which allows local users to read arbitrary files by leveraging user-namespace root access for deletion of a file or directory.

Language: C

Severity Score

Related Resources (7)

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.2
https://nvd.nist.gov/vuln/detail/CVE-2015-4176
http://www.openwall.com/lists/oss-security/2015/06/04/5
https://github.com/torvalds/linux/commit/e0c9c0afd2fc958ffa34b697972721d81df8a56f
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e0c9c0afd2fc958ffa34b697972721d81df8a56f
https://bugzilla.redhat.com/show_bug.cgi?id=1249442
https://www.mend.io/vulnerability-database/CVE-2015-4176

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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