CVE-2020-8937: medium-severity vulnerability in Google LLC Asylo
Arbitrary enclave memory location write from untrusted environment
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.1%
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
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Affected products
Google LLC · AsyloRelated CVEs — Google LLC Asylo
In the same product, most dangerous first.
CVE-2020-8905LOWConfidential Information Disclosure vulnerability in AsyloEPSS 0.2%CVE-2020-8904MEDIUMArbitrary trusted memory overwrite vulnerability in AsyloEPSS 0.2%CVE-2020-8944MEDIUMUnchecked buffer overrun in ecall_restoreEPSS 0.2%CVE-2021-22552MEDIUMMemory overread secure enclave in Asylo 0.6.2EPSS 0.2%CVE-2020-8935MEDIUMCVE-2020-8935EPSS 0.1%CVE-2020-8941MEDIUMUnchecked buffer overrun in enc_untrusted_inet_ptonEPSS 0.1%