Information disclosure in Allwinner A64
CVE-2017-5927
Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last level cache of modern ARM processors. By performing a side-channel attack on the MMU operations, it is possible to leak data and code pointers from JavaScript, breaking ASLR.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.016 (75.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.cs.vu.nl/~herbertb/download/papers/anc_ndss17.pdf (Technical Description, Exploit, Third Party Advisory)
- www.vusec.net/projects/anc (Technical Description, Exploit, Third Party Advisory)
- www.securityfocus.com/bid/96459 (vdb-entry)
Frequently asked questions
- What is CVE-2017-5927?
- CVE-2017-5927 is a high-severity vulnerability in Allwinner A64, classified under Information Disclosure. CVSS score: 7.5/10. Published 2017-02-27.
- How severe is CVE-2017-5927?
- High severity. CVSS v3 base score is 7.5 out of 10.