CVE-2015-1473
Medium
Description
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.
SeverityMedium
CVSS6.4
Exploit probability—
Product
Gnu Glibc
PublishedApr 8, 2015
First seenApr 8, 2015
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu glibc | v ≤ 2.20 | — |
| canonical ubuntu_linux | 10.04, 12.04, 14.04, 14.10 | — |
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