CVE-2021-3772: Debian Linux

Medium severity, CVSS 6.5. EPSS: 1.2% chance of exploitation in the next 30 days.

A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only
• Linux Linux Kernel: before 5.15.0 (fixed in 5.15.0)
• Netapp E-Series Santricity OS Controller: version 11.0 only; version 11.0.0 only; version 11.20 only; version 11.25 only; version 11.30 only; version 11.30.5r3 only; …
• Netapp h300s Firmware: affected versions not specified
• Netapp h410c Firmware: affected versions not specified
• Netapp h410s Firmware: affected versions not specified
• Netapp h500s Firmware: affected versions not specified
• Netapp h610c Firmware: affected versions not specified
• Netapp h610s Firmware: affected versions not specified
• Netapp h615c Firmware: affected versions not specified
• Netapp h700s Firmware: affected versions not specified
• Netapp Hci Compute Node: affected versions not specified
• Netapp Solidfire & Hci Management Node: affected versions not specified
• Netapp Solidfire & Hci Storage Node: affected versions not specified
• Oracle Communications Cloud Native Core Binding Support Function: version 22.1.3 only
• Oracle Communications Cloud Native Core Network Exposure Function: version 22.1.1 only
• Oracle Communications Cloud Native Core Policy: version 22.2.0 only
• Red Hat Enterprise Linux: version 8.0 only

Published 2022-03-02. Last modified 2026-06-17.