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OpenBSD 6.4 released

Accepted submission by DavePolaschek at 2018-10-18 15:19:19 from the Security is good, mmmmkay? dept.
OS

DavePolaschek [soylentnews.org] writes:

OpenBSD 6.4 [openbsd.org] has dropped, and has a bunch of improvements, including:
  • Unveil(2) system call to restrict file system access to specified directories / files
  • RETGUARD protection added for AMD64 and ARM64
  • clang includes a ROP gadget replacement pass
  • clang includes retpoline mitigation for Spectre Variant 2
  • meltdown mitigation for i386
  • amd64 doesn't leak FPU state information across protection boundaries

...and much more.

Original Submission