CVE-2023-31038 affects log4cxx only if ODBC is supported. While
CVE-2023-31038 has been fixed in newer versions of log4cxx, there is
quite a huge gap to do a version bump, and the commit that fixes
CVE-2023-31038 could not be identified.
Therefore, we want to rely on the fact that our log4cxx package does
not support ODBC: there is indeed no explicit dependency on our
unixodbc package in log4cxx.mk. However, log4cxx automatically detects
if ODBC is available and if it is, it uses it.
So what we do in this commit is backport an upstream commit, which
adds explicitly options to enable/disable ODBC and ESMTP support, and
we use them to (1) always disable ODBC and (2) explicitly
enable/disable ESMTP support.
Thanks to ODBC being disabled, we're not affected by CVE-2023-31038.
Of course, there is a potential regression for users who were relying
on the implicit unixodbc dependency, but as we could not identify the
commit fixing the CVE-2023-31038, this is the best we can do at the
moment.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
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