DescriptionAn issue was discovered in the Linux kernel through 4.17.2. The filter parsing in kernel/trace/trace_events_filter.c could be called with no filter, which is an N=0 case when it expected at least one line to have been read, thus making the N-1 index invalid. This allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via crafted perf_event_open and mmap system calls.
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having important severity.SUSE Bugzilla entry: 1098933 [NEW] No SUSE Security Announcements cross referenced.
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.
|SUSE Linux Enterprise Desktop 12 SP3||kernel-source||Not affected|
|SUSE Linux Enterprise Module for Basesystem 15 GA||kernel-source||Not affected|
|SUSE Linux Enterprise Module for Development Tools 15 GA||kernel-source||Not affected|
|SUSE Linux Enterprise Server 11 SP4||kernel-source||Not affected|
|SUSE Linux Enterprise Server 12 SP3||kernel-source||Not affected|