Medium severity4.4NVD Advisory· Published Aug 22, 2023· Updated Jun 17, 2026
CVE-2020-21469
CVE-2020-21469
Description
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
27cpe:2.3:a:postgresql:postgresql:12.2:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:postgresql:postgresql:12.2:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 12.2
- osv-coords24 versionspkg:apk/chainguard/libecpg-12pkg:apk/chainguard/libpq-12pkg:apk/chainguard/postgresql-12pkg:apk/chainguard/postgresql-12-basepkg:apk/chainguard/postgresql-12-bitnami-compatpkg:apk/chainguard/postgresql-12-clientpkg:apk/chainguard/postgresql-12-client-basepkg:apk/chainguard/postgresql-12-contribpkg:apk/chainguard/postgresql-12-devpkg:apk/chainguard/postgresql-12-oci-entrypointpkg:apk/chainguard/postgresql-12-oci-entrypoint-basepkg:apk/chainguard/postgresql-12-pgadmin-compatpkg:apk/wolfi/libecpg-12pkg:apk/wolfi/libpq-12pkg:apk/wolfi/postgresql-12pkg:apk/wolfi/postgresql-12-basepkg:apk/wolfi/postgresql-12-bitnami-compatpkg:apk/wolfi/postgresql-12-clientpkg:apk/wolfi/postgresql-12-client-basepkg:apk/wolfi/postgresql-12-contribpkg:apk/wolfi/postgresql-12-devpkg:apk/wolfi/postgresql-12-oci-entrypointpkg:apk/wolfi/postgresql-12-oci-entrypoint-basepkg:bitnami/postgresql
< 0+ 23 more
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: >= 12.2.0, < 12.2.1
Patches
Vulnerability mechanics
References
3- www.postgresql.org/message-id/CAA8ZSMqAHDCgo07hqKoM5XJaoQy6Vv76O7966agez4ffyQktkA%40mail.gmail.comnvdExploitMailing ListVendor Advisory
- www.postgresql.org/message-id/flat/CAA8ZSMqAHDCgo07hqKoM5XJaoQy6Vv76O7966agez4ffyQktkA%40mail.gmail.comnvdMailing List
- www.postgresql.org/support/security/nvdProduct
News mentions
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