Guide to the Secure Configuration of Debian 12
Rules, Groups, and Values defined within the XCCDF Benchmark
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Detect stack corruption on calls to schedule()
This option checks for a stack overrun on calls to schedule(). If the stack end location is found to be overwritten always panic as the content of ...Rule Medium Severity -
Harden slab freelist metadata
This feature protects integrity of the allocator's metadata. This configuration is available from kernel 4.14. The configuration that was used to ...Rule Medium Severity -
Randomize slab freelist
Randomizes the freelist order used on creating new pages. This configuration is available from kernel 5.9, but may be available if backported by di...Rule Medium Severity -
Disallow merge of slab caches
For reduced kernel memory fragmentation, slab caches can be merged when they share the same size and other characteristics. This carries a risk of ...Rule Medium Severity -
Stack Protector buffer overlow detection
This feature puts, at the beginning of functions, a canary value on the stack just before the return address, and validates the value just before a...Rule Medium Severity -
Strong Stack Protector
This features adds canary logic protection to more kinds of vulnerable functions than CONFIG_STACKPROTECTOR, but not to all functions so that perfo...Rule Medium Severity -
Make the kernel text and rodata read-only
When set, kernel text and rodata memory will be made read-only, and non-text memory will be made non-executable. This configuration is available fr...Rule Medium Severity -
Make the module text and rodata read-only
When set, module text and rodata memory will be made read-only, and non-text memory will be made non-executable. This configuration is available fr...Rule Medium Severity -
User a virtually-mapped stack
Enable this to use virtually-mapped kernel stacks with guard pages. This configuration is available from kernel 4.9. The configuration that was us...Rule Medium Severity -
Generate some entropy during boot and runtime
Instrument some kernel code to extract some entropy from both original and artificially created program state. This will help especially embedded s...Rule Medium Severity
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Modules