CVE-2017-7558: A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_...

Security readout for executives and security teams

CVE-2017-7558 is a Linux kernel information leak. On affected kernels, a local user could trigger SCTP diagnostic handling that copies unintended kernel memory into userspace. The main business concern is confidentiality: small amounts of sensitive kernel slab data could leak, but the sources do not show remote exploitation, integrity impact, or availability impact. Exposure is most likely on Linux systems running kernels in the 4.7-rc1 through 4.13 range, or distribution kernels that had not yet received the referenced vendor fixes. Systems with untrusted local users, shared hosting, or local code execution paths deserve closer review. Treat this as a moderate-priority confidentiality issue. It is not presented as actively exploited, but affected multi-user or shared Linux systems should be patched promptly through normal kernel security maintenance. Mitigation focus: Apply the relevant vendor kernel security update, such as the referenced Red Hat or Debian advisories.; Check distribution advisories because fixes may be backported without changing upstream kernel version visibly.; Prioritize patching systems that allow untrusted local users or shared workloads..

Prepared

Jun 1, 2026, 04:38 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.