| Name | CVE-2023-32324 |
| Description | OpenPrinting CUPS is an open source printing system. In versions 2.4.2 and prior, a heap buffer overflow vulnerability would allow a remote attacker to launch a denial of service (DoS) attack. A buffer overflow vulnerability in the function `format_log_line` could allow remote attackers to cause a DoS on the affected system. Exploitation of the vulnerability can be triggered when the configuration file `cupsd.conf` sets the value of `loglevel `to `DEBUG`. No known patches or workarounds exist at time of publication. |
| 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-3440-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| cups (PTS) | buster | 2.2.10-6+deb10u6 | vulnerable |
| buster (security) | 2.2.10-6+deb10u9 | fixed |
| bullseye (security), bullseye | 2.3.3op2-3+deb11u2 | vulnerable |
| bookworm | 2.4.2-3+deb12u1 | fixed |
| sid, trixie | 2.4.2-6 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| cups | source | buster | 2.2.10-6+deb10u7 | | DLA-3440-1 | |
| cups | source | bookworm | 2.4.2-3+deb12u1 | | | |
| cups | source | (unstable) | 2.4.2-4 | | | |
Notes
[bullseye] - cups <no-dsa> (Can be fixed via point release; exploitable when setting loglevel to DEBUG)
https://github.com/OpenPrinting/cups/security/advisories/GHSA-cxc6-w2g7-69p7
Fixed by: https://github.com/OpenPrinting/cups/commit/fd8bc2d32589d1fd91fe1c0521be2a7c0462109e