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| -rw-r--r-- | docs/system/security.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/system/security.rst b/docs/system/security.rst index af626a4230..8c42d1a6d8 100644 --- a/docs/system/security.rst +++ b/docs/system/security.rst @@ -143,6 +143,16 @@ an issue as a normal bug. which case plain manipulation of the stream is not considered as an attack vector. +* **uninitialized stack variables**. If the bug scenario relies on + undefined behaviour from stack variables that lack explicit + initialization, it will not usually be considered a security flaw. + The build system adds '-ftrivial-auto-var-init=zero', which is + available in both the supported compilers (GCC and CLang) and + ensures all stack variables have implicit zero-initializers. + This eliminates undefined behaviour and usually gives the + correct desired initialization value, eliminating most of the + bug scenarios wrt uninitialized stack variables. + * **low severity impact**. As a catch all rule, issues which are judged to have a "low" severity impact on the system will usually not justify handling as security bugs, nor assignment |