An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://usn.ubuntu.com/4416-1/
https://usn.ubuntu.com/4218-1/
https://sourceware.org/bugzilla/show_bug.cgi?id=22343
https://security.netapp.com/advisory/ntap-20190404-0003/
https://access.redhat.com/errata/RHSA-2018:3092
https://access.redhat.com/errata/RHBA-2019:0327