High severity · published Jun 7, 2017
CVE-2017-7563
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
8.1
CVSS
0.9%
EPSS
No
On KEV
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).
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
Trusted Firmware-a · Trustedfirmware
through 1.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-7563
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-7563
Third Party Advisory
https://github.com/ARM-software/arm-trusted-firmware/wiki/ARM-Trusted-Firmware-Security-Advisory-TFV-3
More from Trusted Firmware-a
7.5
CVE-2017-15031
In all versions of ARM Trusted Firmware up to and including v1.4, not initializing or saving/restoring the PMCR_EL0 register can leak secure world timing information
7.5
CVE-2017-7564
In ARM Trusted Firmware through 1.3, the secure self-hosted invasive debug interface allows normal world attackers to cause a denial of service (secure world panic) via vectors…
7.4
CVE-2022-47630
Trusted Firmware-A through 2.8 has an out-of-bounds read in the X.509 parser for parsing boot certificates
7.0
CVE-2017-9607
The BL1 FWU SMC handling code in ARM Trusted Firmware before 1.4 might allow attackers to write arbitrary data to secure memory, bypass the bl1_plat_mem_check protection…
5.8
CVE-2023-31339
Improper input validation in ARM® Trusted Firmware used in AMD’s Zynq™ UltraScale+™) MPSoC/RFSoC may allow a privileged attacker to perform out of bound reads, potentially…