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 a risk-management decision for use of the alloca function, which might allow context-dependent attackers to cause a denial of service (segmentation violation) or overwrite memory locations beyond the stack boundary via a long line containing wide characters that are improperly handled in a wscanf call.
CPE | Name | Operator | Version |
---|---|---|---|
ubuntu_linux | eq | 12.04 | |
ubuntu_linux | eq | 14.10 | |
ubuntu_linux | eq | 14.04 | |
ubuntu_linux | eq | 10.04 | |
glibc | le | 2.20 |