CVE-2020-17446

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-08-12 · updated 2026-06-17
Weakness: CWE-824

Description

asyncpg before 0.21.0 allows a malicious PostgreSQL server to trigger a crash or execute arbitrary code (on a database client) via a crafted server response, because of access to an uninitialized pointer in the array data decoder.

Affected products

Debian Linux: 9.0
Magic Asyncpg: before 0.21.0 — fixed in 0.21.0

How to fix

Upgrade to a fixed version: Magic Asyncpg 0.21.0. Check the vendor advisory for mitigations.

References

https://github.com/MagicStack/asyncpg/releases/tag/v0.21.0
https://lists.debian.org/debian-lts-announce/2020/09/msg00002.html
https://github.com/MagicStack/asyncpg/releases/tag/v0.21.0
https://lists.debian.org/debian-lts-announce/2020/09/msg00002.html

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