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CVE-2021-3677

6.5 · MEDIUM

A flaw was found in postgresql.

Published Mar 2, 2022CWE-200EPSS 1.44%

Overview

CVE-2021-3677 is a medium-severity vulnerability. It was published on March 2, 2022 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugzilla.redhat.com/show_bug.cgi?id=2001857Refsecurity.gentoo.org/glsa/202211-04Refsecurity.netapp.com/advisory/ntap-20220407-0008/Refwww.postgresql.org/support/security/CVE-2021-3677/Refbugzilla.redhat.com/show_bug.cgi?id=2001857Refsecurity.gentoo.org/glsa/202211-04Refsecurity.netapp.com/advisory/ntap-20220407-0008/Refwww.postgresql.org/support/security/CVE-2021-3677/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-3677?

CVE-2021-3677 is a medium-severity vulnerability. It was published on March 2, 2022 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2021-3677?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-3677?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-3677?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-3677 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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