CVE-2021-3677

Description

A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.16%
Vendor Advisory gentoo.org Vendor Advisory postgresql.org
Affected: n/a postgresql
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-3677?
CVE-2021-3677 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3677?
To fix CVE-2021-3677, 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-2021-3677 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3677 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-2021-3677?
CVE-2021-3677 affects n/a postgresql.
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