VulnerabilityAnalyzed
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.
HIGH 7.5EPSS 1.90%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.90% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- trustedfirmware/trusted firmware-a
- Source
- cve@mitre.org
References
- http://www.securityfocus.com/bid/106271Third Party Advisory, VDB Entry
- https://github.com/ARM-software/arm-trusted-firmware/wiki/ARM-Trusted-Firmware-Security-Advisory-TFV-5Patch, Third Party Advisory
- http://www.securityfocus.com/bid/106271Third Party Advisory, VDB Entry
- https://github.com/ARM-software/arm-trusted-firmware/wiki/ARM-Trusted-Firmware-Security-Advisory-TFV-5Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.