CVE-2017-7558: Debian Linux

High severity, CVSS 7.5. EPSS: 3.6% chance of exploitation in the next 30 days.

A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Linux Linux Kernel: from 4.7, up to and including 4.13; version 4.7 only

Published 2018-07-26. Last modified 2026-06-17.