CVE-2016-0821

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal bug 26186802, a different vulnerability than CVE-2015-3636.

La funcionalidad LIST_POISON en include/linux/poison.h en el kernel de Linux en versiones anteriores a 4.3, como se utiliza en Android 6.0.1 en versiones anteriores a 2016-03-01, no considera adecuadamente la relación del valor mmap_min_addr, lo que hace más fácil a atacantes eludir un mecanismo de protección poison-pointer desencadenando el uso de una entrada de lista no inicializada, también conocido como error interno de Android 26186802, una vulnerabilidad diferente a CVE-2015-3636.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-12-16 CVE Reserved
2016-03-12 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-908: Use of Uninitialized Resource

CAPEC

References (15)

URL	Tag	Source
http://source.android.com/security/bulletin/2016-03-01.html	Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/05/02/6	Mailing List
http://www.securityfocus.com/bid/84260	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf	2022-01-31
https://github.com/torvalds/linux/commit/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf	2022-01-31

URL	Date	SRC
http://www.debian.org/security/2016/dsa-3607	2022-01-31
http://www.ubuntu.com/usn/USN-2967-1	2022-01-31
http://www.ubuntu.com/usn/USN-2967-2	2022-01-31
http://www.ubuntu.com/usn/USN-2968-1	2022-01-31
http://www.ubuntu.com/usn/USN-2968-2	2022-01-31
http://www.ubuntu.com/usn/USN-2969-1	2022-01-31
http://www.ubuntu.com/usn/USN-2970-1	2022-01-31
http://www.ubuntu.com/usn/USN-2971-1	2022-01-31
http://www.ubuntu.com/usn/USN-2971-2	2022-01-31
http://www.ubuntu.com/usn/USN-2971-3	2022-01-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.3 Search vendor "Linux" for product "Linux Kernel" and version " < 4.3"		-		Affected
Google Search vendor "Google"		Android Search vendor "Google" for product "Android"				6.0.1 Search vendor "Google" for product "Android" and version "6.0.1"		-		Affected