CVE-2020-15224

Socket syscalls can leak enclave memory contents in Open Enclave

Description

In Open Enclave before version 0.12.0, an information disclosure vulnerability exists when an enclave application using the syscalls provided by the sockets.edl is loaded by a malicious host application. An attacker who successfully exploited the vulnerability could read privileged data from the enclave heap across trust boundaries. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to elevate user rights directly, but it could be used to obtain information otherwise considered confidential in an enclave, which could be used in further compromises. The issue has been addressed in version 0.12.0 and the current master branch. Users will need to to recompile their applications against the patched libraries to be protected from this vulnerability.

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: openenclave openenclave
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2020-15224?
CVE-2020-15224 has been scored as a medium severity vulnerability.
How to fix CVE-2020-15224?
To fix CVE-2020-15224, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15224 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-15224 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15224?
CVE-2020-15224 affects openenclave openenclave.
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