Debian: DLA-2386-1 Critical: libdbi-perl DoS and Code Execution Risk

CVE-2019-20919

The hv_fetch() documentation requires checking for NULL and the
code does that. But, shortly thereafter, it calls SvOK(profile),
causing a NULL pointer dereference.

CVE-2020-14392

An untrusted pointer dereference flaw was found in Perl-DBI. A
local attacker who is able to manipulate calls to
dbd_db_login6_sv() could cause memory corruption, affecting the
service's availability.

CVE-2020-14393

A buffer overflow on via an overlong DBD class name in
dbih_setup_handle function may lead to data be written past the
intended limit.

For Debian 9 stretch, these problems have been fixed in version
1.636-1+deb9u1.

We recommend that you upgrade your libdbi-perl packages.

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

Further information about Debian LTS security advisories, how to apply