All vulnerabilities

Servers and applications

CVE-2021-3677

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…

Severity
Medium 6.5
Published
2 Mar 2022
Last changed
17 Jun 2026
Added to UpHeron
16 Oct 2026
Fixed in
11.13, 12.8, 13.4
Sources
NVD

Affected software

SoftwareAffected versions
PostgreSQLServers and applications · cpe:a:postgresql:postgresql
  • From 11.0 before 11.13
  • From 12.0 before 12.8
  • From 13.0 before 13.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-3677
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-3677