First published: Wed Apr 08 2015(Updated: )
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.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
Canonical Ubuntu Linux | =10.04 | |
Canonical Ubuntu Linux | =12.04 | |
Canonical Ubuntu Linux | =14.04 | |
Canonical Ubuntu Linux | =14.10 | |
GNU glibc | <=2.20 |
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