CVE-2017-7563

CVSS V2 Medium 6.8 CVSS V3 High 8.1

Description

In ARM Trusted Firmware 1.3, RO memory is always executable at AArch64 Secure EL1, allowing attackers to bypass the MT_EXECUTE_NEVER protection mechanism. This issue occurs because of inconsistency in the number of execute-never bits (one bit versus two bits).

Overview

CVE ID
CVE-2017-7563

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2017-06-07T15:29:00

Last Modified Date
2019-10-03T00:03:26

Weakness Enumerations

CWE	URL
CWE-732	http://cwe.mitre.org/data/definitions/732.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:arm:arm_trusted_firmware::::::::	1	OR		1.3

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
6.8

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
6.4

CVSS Version 3

Version
3.0

Vector String
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK

Attack Compatibility
HIGH

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.1

Base Severity
HIGH

Exploitability Score
2.2

Impact Score
5.9

References

Reference URL	Reference Tags
https://github.com/ARM-software/arm-trusted-firmware/wiki/ARM-Trusted-Firmware-Security-Advisory-TFV-3	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2017-7563
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7563

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:28:03				Added to TrackCVE
2022-12-02 17:30:42	2017-06-07T15:29Z	2017-06-07T15:29:00	CVE Published Date	updated
2022-12-02 17:30:42		2019-10-03T00:03:26	CVE Modified Date	updated
2022-12-02 17:30:42		Analyzed	Vulnerability Status	updated