CVE-2023-3772: Debian Linux

Medium severity, CVSS 4.4. EPSS: 0.5% chance of exploitation in the next 30 days.

A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.

Affected products

• Debian Debian Linux: version 10.0 only; version 12.0 only
• Fedoraproject Fedora: affected versions not specified
• Linux Linux Kernel: affected versions not specified
• Red Hat Enterprise Linux: version 8.0 only; version 9.0 only
• Red Hat Enterprise Linux For Real Time: version 8.0 only
• Red Hat Enterprise Linux For Real Time For Nfv: version 8.0 only

Published 2023-07-25. Last modified 2026-06-17.