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.
{ "availability": "No subscription required", "ubuntu_priority": "negligible", "binaries": [ { "binary_version": "2.31-0ubuntu9", "binary_name": "glibc-doc" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "glibc-source" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc-bin" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc-bin-dbgsym" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc-dev-bin" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc-dev-bin-dbgsym" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-amd64" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-amd64-dbgsym" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-armel" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-armel-dbgsym" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-dbg" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-dev" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-dev-amd64" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-dev-armel" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-dev-i386" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-dev-s390" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-dev-x32" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-i386" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-i386-dbgsym" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-lse" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-pic" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-s390" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-s390-dbgsym" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-udeb" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-x32" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "libc6-x32-dbgsym" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "locales" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "locales-all" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "nscd" }, { "binary_version": "2.31-0ubuntu9", "binary_name": "nscd-dbgsym" } ] }