The ADDW macro in stdio-common/vfscanf.c in the GNU C Library (aka
glibc or libc6) before 2.21 does not properly consider data-type size
during memory allocation, which allows context-dependent attackers to
cause a denial of service (buffer overflow) or possibly have
unspecified other impact via a long line containing wide characters
that are improperly handled in a wscanf call.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[libc-alpha] 20150206 The GNU C Library version 2.21 is now available
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