A libphp-adodb security update has been released for Debian GNU/Linux 9 LTS to address an issue where an attacker can inject values into the PostgreSQL connection string by bypassing adodb_addslashes().

DLA 2912-1: libphp-adodb security update

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Debian LTS Advisory DLA-2912-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Utkarsh Gupta
February 06, 2022   https://wiki.debian.org/LTS
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Package : libphp-adodb
Version : 5.20.9-1+deb9u1
CVE ID : CVE-2021-3850
Debian Bug : 1004376

It was found that in libphp-adodb, a PHP database abstraction layer
library, an attacker can inject values into the PostgreSQL connection
string by bypassing adodb_addslashes(). The function can be bypassed
in phppgadmin, for example, by surrounding the username in quotes and
submitting with other parameters injected in between.

For Debian 9 stretch, this problem has been fixed in version
5.20.9-1+deb9u1.

We recommend that you upgrade your libphp-adodb packages.

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

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