Buffer overflow in Google Asylo
CVE-2020-8944
An arbitrary memory write vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to ecall_restore using the attribute output which fails to check the range of a pointer. An attacker can use this pointer to write to arbitrary memory addresses including those within the secure enclave We recommend upgrading past commit 382da2b8b09cbf928668a2445efb778f76bd9c8a
Vulnerability class: Buffer Overflow
EPSS: 0.002 (5.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Google Asylo
- Google Llc Asylo — versions unspecified
Weakness classification (CWE)
References
- cve-coordination@google.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8944?
- CVE-2020-8944 is a medium-severity vulnerability in Google Asylo, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.3/10. Published 2020-12-15.
- How severe is CVE-2020-8944?
- Medium severity. CVSS v3 base score is 5.3 out of 10.