CVE-2016-3070

kernel: Null pointer dereference in trace_writeback_dirty_page()

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The trace_writeback_dirty_page implementation in include/trace/events/writeback.h in the Linux kernel before 4.4 improperly interacts with mm/migrate.c, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by triggering a certain page move.

La implementación trace_writeback_dirty_page en include/trace/events/writeback.h en el kernel de Linux en versiones anteriores a 4.4 interactúa incorrectamente con mm/migrate.c, lo que permite a usuarios locales provocar una denegación de servicio (referencia a puntero NULL y caída de sistema) o posiblemente tener otro impacto no especificado desencadenando un cierto movimiento de página.

A security flaw was found in the Linux kernel that an attempt to move page mapped by AIO ring buffer to the other node triggers NULL pointer dereference at trace_writeback_dirty_page(), because aio_fs_backing_dev_info.dev is 0.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-03-10 CVE Reserved
2016-06-28 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (16)

URL	Tag	Source
http://www.securityfocus.com/bid/90518	Vdb Entry
https://security-tracker.debian.org/tracker/CVE-2016-3070	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=42cb14b110a5698ccf26ce59c4441722605a3743	2023-02-12
https://github.com/torvalds/linux/commit/42cb14b110a5698ccf26ce59c4441722605a3743	2023-02-12

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2016-2574.html	2023-02-12
http://rhn.redhat.com/errata/RHSA-2016-2584.html	2023-02-12
http://www.debian.org/security/2016/dsa-3607	2023-02-12
http://www.ubuntu.com/usn/USN-3034-1	2023-02-12
http://www.ubuntu.com/usn/USN-3034-2	2023-02-12
http://www.ubuntu.com/usn/USN-3035-1	2023-02-12
http://www.ubuntu.com/usn/USN-3035-2	2023-02-12
http://www.ubuntu.com/usn/USN-3035-3	2023-02-12
http://www.ubuntu.com/usn/USN-3036-1	2023-02-12
http://www.ubuntu.com/usn/USN-3037-1	2023-02-12
https://bugzilla.redhat.com/show_bug.cgi?id=1308846	2016-11-03
https://access.redhat.com/security/cve/CVE-2016-3070	2016-11-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 4.3.6 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.3.6"		-		Affected