CVE-2016-2085

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack.

La función evm_verify_hmac en security/integrity/evm/evm_main.c en el kernel de Linux en versiones anteriores a 4.5 no copia correctamente los datos, lo que facilita a usuarios locales falsificar los valores MAC a través de un ataque de tiempo side-chanel.

*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

2016-01-27 CVE Reserved
2016-04-06 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-19: Data Processing Errors

CAPEC

References (13)

URL	Tag	Source
https://bugzilla.redhat.com/show_bug.cgi?id=1324867	X_refsource_confirm
https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html	X_refsource_confirm
https://security-tracker.debian.org/tracker/CVE-2016-2085	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1	2016-12-03

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1	2016-12-03
http://www.ubuntu.com/usn/USN-2946-1	2016-12-03
http://www.ubuntu.com/usn/USN-2946-2	2016-12-03
http://www.ubuntu.com/usn/USN-2947-1	2016-12-03
http://www.ubuntu.com/usn/USN-2947-2	2016-12-03
http://www.ubuntu.com/usn/USN-2947-3	2016-12-03
http://www.ubuntu.com/usn/USN-2948-1	2016-12-03
http://www.ubuntu.com/usn/USN-2948-2	2016-12-03
http://www.ubuntu.com/usn/USN-2949-1	2016-12-03

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"				<= 4.4.8 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.4.8"		-		Affected