CVE-2015-6640 Information

Description

The prctl_set_vma_anon_name function in kernel/sys.c in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 does not ensure that only one vma is accessed in a certain update action which allows attackers to gain privileges or cause a denial of service (vma list corruption) via a crafted application aka internal bug 20017123.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

http://source.android.com/security/bulletin/2016-01-01.html http://www.securitytracker.com/id/1034592 https://android.googlesource.com/kernel2Fcommon/+/69bfe2d957d903521d32324190c2754cb073be15

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8