A asyncpg security update has been released for Debian GNU/Linux 9 LTS to address an issue where a malicious PostgreSQL server can trigger a crash or execute arbitrary code (on a database client) via a crafted server response.

DLA 2363-1: asyncpg security update

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Debian LTS Advisory DLA-2363-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Utkarsh Gupta
September 03, 2020   https://wiki.debian.org/LTS
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Package : asyncpg
Version : 0.8.4-1+deb9u1
CVE ID : CVE-2020-17446

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.

For Debian 9 stretch, this problem has been fixed in version
0.8.4-1+deb9u1.

We recommend that you upgrade your asyncpg packages.

For the detailed security status of asyncpg please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/asyncpg

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS