Fix CVE-2023-24805: cups-filters contains backends, filters, and other
software required to get the cups printing service working on operating
systems other than macos. If you use the Backend Error Handler (beh) to
create an accessible network printer, this security vulnerability can
cause remote code execution. `beh.c` contains the line `retval =
system(cmdline) >> 8;` which calls the `system` command with the operand
`cmdline`. `cmdline` contains multiple user controlled, unsanitized
values. As a result an attacker with network access to the hosted print
server can exploit this vulnerability to inject system commands which
are executed in the context of the running server. This issue has been
addressed in commit `8f2740357` and is expected to be bundled in the
next release. Users are advised to upgrade when possible and to restrict
access to network printers in the meantime.
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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