CVE-2021-3677
mediumpriority · track · 27EPSS 0.014 · 73 %ileDEEURUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 4–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (35)
Products and version ranges known to be affected.
- Avaya Aura Application Enablement Servicesall versionscert_bundDEcpe:/a:avaya:aura_application_enablement_services:-
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2022-0195PostgreSQL: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2021-08-12csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in PostgreSQL ausnutzen, um Informationen offenzulegen.
- BIT-postgresql-2021-36772024-03-06vendor · osvUS
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.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (30)
External citations — patches, advisories, analysis.
- https://bugzilla.redhat.com/show_bug.cgi?id=2001857cnnvd
- https://cxsecurity.com/cveshow/CVE-2021-3677/cnnvd
- https://packetstormsecurity.com/files/163815/Ubuntu-Security-Notice-USN-5038-1.htmlcnnvd
- https://packetstormsecurity.com/files/165342/Red-Hat-Security-Advisory-2021-5179-02.htmlcnnvd
- https://packetstormsecurity.com/files/165389/Red-Hat-Security-Advisory-2021-5235-02.htmlcnnvd
- https://packetstormsecurity.com/files/167847/Red-Hat-Security-Advisory-2022-4931-01.htmlcnnvd
- https://packetstormsecurity.com/files/169950/Gentoo-Linux-Security-Advisory-202211-04.htmlcnnvd
- https://security.gentoo.org/glsa/202211-04cnnvd
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