CVE-2023-24805

Name	CVE-2023-24805
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3430-1, DSA-5407-1, ELA-852-1
Debian Bugs	1036224

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
cups-filters (PTS)	jessie, jessie (lts)	1.0.61-5+deb8u5	fixed
	stretch (security)	1.11.6-3+deb9u1	vulnerable
	stretch (lts), stretch	1.11.6-3+deb9u3	fixed
	buster, buster (lts)	1.21.6-5+deb10u2	fixed
	buster (security)	1.21.6-5+deb10u1	fixed
	bullseye	1.28.7-1+deb11u2	fixed
	bullseye (security)	1.28.7-1+deb11u3	fixed
	bookworm (security), bookworm	1.28.17-3+deb12u1	fixed
	sid, trixie	1.28.17-5	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
cups-filters	source	jessie	(not affected)
cups-filters	source	stretch	1.11.6-3+deb9u2	ELA-852-1
cups-filters	source	buster	1.21.6-5+deb10u1	DLA-3430-1
cups-filters	source	bullseye	1.28.7-1+deb11u2	DSA-5407-1
cups-filters	source	(unstable)	1.28.17-3		1036224

Notes

https://www.openwall.com/lists/oss-security/2023/05/17/5
https://github.com/OpenPrinting/cups-filters/security/advisories/GHSA-gpxc-v2m8-fr3x
Fixed by: https://github.com/OpenPrinting/cups-filters/commit/8f274035756c04efeb77eb654e9d4c4447287d65 (master)
Fixed by: https://github.com/OpenPrinting/cups-filters/commit/93e60d3df358c0ae6f3dba79e1c9684657683d89 (1.x)
[jessie] - cups-filters <not-affected> (Vulnerable code introduced later)