CVE-2020-21469
First published: Tue Aug 22 2023(Updated: )
** DISPUTED ** An issue was discovered in PostgreSQL 12.2 allows attackers to cause a denial of service via repeatedly sending SIGHUP signals. NOTE: this is disputed by the vendor because untrusted users cannot send SIGHUP signals; they can only be sent by a PostgreSQL superuser, a user with pg_reload_conf access, or a user with sufficient privileges at the OS level (the postgres account or the root account).
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PostgreSQL | =12.2 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-21469.
What is the severity level of CVE-2020-21469?
CVE-2020-21469 has a severity level of high.
How does CVE-2020-21469 affect PostgreSQL?
CVE-2020-21469 allows attackers to cause a denial of service in PostgreSQL 12.2.
How can an attacker exploit CVE-2020-21469?
An attacker can exploit CVE-2020-21469 by repeatedly sending SIGHUP signals.
Are untrusted users able to exploit CVE-2020-21469?
No, untrusted users cannot send SIGHUP signals. Only PostgreSQL superusers or users with pg_relo can send these signals.
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