MGASA-2021-0582 Updated ldns packages fix security vulnerability

Heap out-of-bound read vulnerability in rrfrmstrinternal function Heap out-of-bound read vulnerability in ldnsnsec3saltdata function Fixed time memory compare for Openssl 0.9.8...

In the GNU C Library (aka glibc or libc6) through 2.29 the memcmp function for the x32 architecture can incorrectly return zero (indicating that the inputs are equal) because the RDX most significant bit is mishandled.

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