CVE-2013-4391: Debian Linux

High severity, CVSS 7.5. EPSS: 5.4% chance of exploitation in the next 30 days.

Integer overflow in the valid_user_field function in journal/journald-native.c in systemd allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large journal data field, which triggers a heap-based buffer overflow.

Affected products

• Debian Debian Linux: version 7.0 only
• Systemd Project Systemd: before 190 (fixed in 190)

Published 2013-10-28. Last modified 2026-06-16.