CVE-2020-8939: Vulnerability Analysis & Exploit Details

Status: Modified - Last modified: 21-11-2024 Published: 15-12-2020

CVE-2020-8939
Vulnerability Scoring

5.3
/10

Attack Complexity Details

  • Attack Complexity: HIGH IMPACT
  • Attack Vector: LOCAL
  • Privileges Required: Low Impact
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality: HIGH IMPACT
  • Integrity: Low Impact
  • Availability:

CVE-2020-8939 Vulnerability Summary

An out of bounds read on the enc_untrusted_inet_ntop function allows an attack to extend the result size that is used by memcpy() to read memory from within the enclave heap. We recommend upgrading past commit 6ff3b77ffe110a33a2f93848a6333f33616f02c4

Access Complexity Graph for CVE-2020-8939

Impact Analysis for CVE-2020-8939

CVE-2020-8939: Detailed Information and External References

EPSS

0.00044

EPSS %

0.14917

References

0.00044

CWE

CWE-125

CAPEC

0.00044

  • Overread Buffers: An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Vulnerable Configurations

  • cpe:2.3:a:google:asylo:-:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:-:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.3.3:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.3.3:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.3.4:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.3.4:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.3.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.3.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.3.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.3.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.5.2:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.5.2:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.5.3:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.5.3:*:*:*:*:*:*:*
  • cpe:2.3:a:google:asylo:0.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:google:asylo:0.6.0:*:*:*:*:*:*:*

CVSS3 Source

cve-coordination@google.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

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