~/talk

Securing GCC and GLIBC

recording made private on YouTubehttps://youtu.be/b1fO-RLtDME
Talkat Supply Chain Town Hall 2021 · on Wednesday, 2021-08-18· at 11:30· Virtual· [security]
video:https://youtu.be/b1fO-RLtDME (made private)
slides:none on file

GCC adds incremental prevention features: buffer bounds checking (improving since GCC 9), object-size detection, new static analyzers in GCC 10 and sanitizers (UBSan) shared with LLVM, and compiler plugins that record compilation metadata (anabin with anacheck) so builds can be audited for flags like fortify and optimization. glibc adds header access annotations, fortify_source=3 (glibc 2.33) and removed some malloc exploit primitives (2.34). Hardware CFI (Intel CET, ARM PAC/BTI) and function-pointer obfuscation plugins are in use for mitigation.

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