National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-3672 Detail

Description

The arch_pick_mmap_layout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDR_NO_RANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid or setgid program, by disabling stack-consumption resource limits.

Source:  MITRE
Description Last Modified:  04/27/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8


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 v2.0 Severity and Metrics:

Base Score: 4.6 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

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=8b8addf891de8a00e4d39fc32f93f7c5eb8feceb
http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-dis
http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-disables-ASLR.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182524.html
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
http://seclists.org/fulldisclosure/2016/Apr/26
http://www.debian.org/security/2016/dsa-3607
http://www.securityfocus.com/archive/1/537996/100/0/threaded
http://www.securityfocus.com/bid/85884
http://www.securitytracker.com/id/1035506
http://www.ubuntu.com/usn/USN-2989-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2996-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2997-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2998-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3000-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3001-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3002-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3003-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3004-1 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0676
https://access.redhat.com/errata/RHSA-2018:1062
https://bugzilla.redhat.com/show_bug.cgi?id=1324749 Issue Tracking
https://github.com/torvalds/linux/commit/8b8addf891de8a00e4d39fc32f93f7c5eb8feceb Patch Vendor Advisory
https://www.exploit-db.com/exploits/39669/

Technical Details

Vulnerability Type (View All)

Change History

12 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-3672
NVD Published Date:
04/27/2016
NVD Last Modified:
10/09/2018