An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allows an attacker to make a host call to enc_untrusted_create_wait_queue that uses a pointer queue that relies on UntrustedLocalMemcpy, which fails to validate where the pointer is located. This allows an attacker to write memory values from within the enclave. We recommend upgrading past commit a37fb6a0e7daf30134dbbf357c9a518a1026aa02
Published 2020-12-15 15:15:13
Updated 2020-12-17 14:45:46
Source Google Inc.
View at NVD,   CVE.org
Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2020-8937

Exploit prediction scoring system (EPSS) score for CVE-2020-8937

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-8937

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.1
LOW AV:L/AC:L/Au:N/C:N/I:P/A:N
3.9
2.9
NIST
5.3
MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
1.0
4.2
Google Inc.
3.3
LOW CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
1.8
1.4
NIST

CWE ids for CVE-2020-8937

References for CVE-2020-8937

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