CVE-2020-13844

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."

Las implementaciones principales de Arm Armv8-A, que usan la ejecución especulativa más allá de los cambios incondicionales en el flujo de control pueden permitir una divulgación no autorizada de información a un atacante con acceso de usuario local por medio de un análisis de canal lateral, también se conoce como "straight-line speculation."

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-06-04 CVE Reserved
2020-06-08 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-203: Observable Discrepancy

CAPEC

References (7)

URL	Tag	Source
http://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.html	2022-04-28

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00039.html	2022-04-28
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00040.html	2022-04-28
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability	2022-04-28
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculation	2022-04-28
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questions	2022-04-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Arm Search vendor "Arm"	Cortex-a32 Firmware Search vendor "Arm" for product "Cortex-a32 Firmware"	-	-	Affected	in	Arm Search vendor "Arm"	Cortex-a32 Search vendor "Arm" for product "Cortex-a32"	-	-	Safe
Arm Search vendor "Arm"	Cortex-a35 Firmware Search vendor "Arm" for product "Cortex-a35 Firmware"	-	-	Affected	in	Arm Search vendor "Arm"	Cortex-a35 Search vendor "Arm" for product "Cortex-a35"	-	-	Safe
Arm Search vendor "Arm"	Cortex-a53 Firmware Search vendor "Arm" for product "Cortex-a53 Firmware"	-	-	Affected	in	Arm Search vendor "Arm"	Cortex-a53 Search vendor "Arm" for product "Cortex-a53"	-	-	Safe
Arm Search vendor "Arm"	Cortex-a57 Firmware Search vendor "Arm" for product "Cortex-a57 Firmware"	-	-	Affected	in	Arm Search vendor "Arm"	Cortex-a57 Search vendor "Arm" for product "Cortex-a57"	-	-	Safe
Arm Search vendor "Arm"	Cortex-a72 Firmware Search vendor "Arm" for product "Cortex-a72 Firmware"	-	-	Affected	in	Arm Search vendor "Arm"	Cortex-a72 Search vendor "Arm" for product "Cortex-a72"	-	-	Safe
Arm Search vendor "Arm"	Cortex-a73 Firmware Search vendor "Arm" for product "Cortex-a73 Firmware"	-	-	Affected	in	Arm Search vendor "Arm"	Cortex-a73 Search vendor "Arm" for product "Cortex-a73"	-	-	Safe
Arm Search vendor "Arm"	Cortex-a34 Firmware Search vendor "Arm" for product "Cortex-a34 Firmware"	-	-	Affected	in	Arm Search vendor "Arm"	Cortex-a34 Search vendor "Arm" for product "Cortex-a34"	-	-	Safe
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.2 Search vendor "Opensuse" for product "Leap" and version "15.2"		-		Affected