A buffer length validation vulnerability in Asylo versions prior to 0.6.0 allows an attacker to read data they should not have access to. The 'enc_untrusted_recvfrom' function generates a return value which is deserialized by 'MessageReader', and copied into three different 'extents'. The length of the third 'extents' is controlled by the outside world, and not verified on copy, allowing the attacker to force Asylo to copy trusted memory data into an untrusted buffer of significantly small length.. We recommend updating Asylo to version 0.6.0 or later.
References
Link | Resource |
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https://github.com/google/asylo/commit/299f804acbb95a612ab7c504d25ab908aa59ae93 | Patch Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: Google
Published: 2020-07-22T00:00:00
Updated: 2020-08-12T18:20:13
Reserved: 2020-02-12T00:00:00
Link: CVE-2020-8905
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-08-12T19:15:14.670
Modified: 2020-08-13T14:40:49.783
Link: CVE-2020-8905
JSON object: View
Redhat Information
No data.
CWE