What’s Vulnerable › Vulnerabilities
CVE-2023-32324: OpenPrinting CUPS vulnerable to heap buffer overflow
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-06-01 · updated 2026-06-17
- Weakness: CWE-122
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.
Affected products
- Debian Linux: 10.0
- OpenPrinting cups: through 2.4.2
References
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-cxc6-w2g7-69p7
- https://lists.debian.org/debian-lts-announce/2023/06/msg00001.html
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-cxc6-w2g7-69p7
- https://lists.debian.org/debian-lts-announce/2023/06/msg00001.html
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