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CVE-2016-6187

Date: August 6, 2016

The apparmor_setprocattr function in security/apparmor/lsm.c in the Linux kernel before 4.6.5 does not validate the buffer size, which allows local users to gain privileges by triggering an AppArmor setprocattr hook.

Language: C

Severity Score

Related Resources (9)

https://bugzilla.redhat.com/show_bug.cgi?id=1354383
http://www.openwall.com/lists/oss-security/2016/07/09/2
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a46a4647fd1df9cf52e43bf467f0d9265096ca
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.5
https://nvd.nist.gov/vuln/detail/CVE-2016-6187
http://www.securityfocus.com/bid/91696
https://github.com/torvalds/linux/commit/30a46a4647fd1df9cf52e43bf467f0d9265096ca
http://marc.info/?l=linux-kernel&m=146793642811929&w=2
https://www.mend.io/vulnerability-database/CVE-2016-6187

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Permissions, Privileges, and Access Control

CWE-264

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): HIGH
Availability (A): HIGH

CVSS v2

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

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