Vulnerability record · CVE-2021-3677 · published 2 March 2022
CVE-2021-3677: Postgresql information exposure vulnerability
Postgresql · Postgresql
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.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products
7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2001857 | Issue TrackingThird Party Advisory |
| https://security.gentoo.org/glsa/202211-04 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220407-0008/ | Third Party Advisory |
| https://www.postgresql.org/support/security/CVE-2021-3677/ | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2001857 | Issue TrackingThird Party Advisory |
| https://security.gentoo.org/glsa/202211-04 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220407-0008/ | Third Party Advisory |
| https://www.postgresql.org/support/security/CVE-2021-3677/ | Vendor Advisory |
Track CVE-2021-3677 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2021-3677), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.
