PT-2020-20381 · Google · Asylo

Kang Li + 3 · Published 2020-12-15 · Updated 2020-12-17 · CVE-2020-8943

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Asylo versions up to 0.6.0

Description The issue allows an untrusted attacker to make a call to enc untrusted recvfrom whose return size was not validated against the requested size. The size parameter is unchecked, allowing the attacker to read memory locations outside of the intended buffer size, including memory addresses within the secure enclave.

Recommendations For Asylo versions up to 0.6.0, upgrade past commit 6e158d558abd3c29a0208e30c97c9a8c5bd4230f to resolve the issue.

Fix

Out of bounds Read

Buffer Overflow

Weakness Enumeration

CWE-125

CWE-120

Related Identifiers

CVE-2020-8943

Affected Products

Asylo

References · 3

• https://github.com/google/asylo/commit/6e158d558abd3c29a0208e30c97c9a8c5bd4230f · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-8943 · Security Note
• https://osv.dev/vulnerability/CVE-2020-8943 · Vendor Advisory