CVE-2012-3406: Stack overflow in vfprintf [BZ #16617]

A larger number of format specifiers coudld cause a stack overflow,
potentially allowing to bypass _FORTIFY_SOURCE format string
protection.

1 files changed, 8 insertions, 5 deletions

diff --git a/NEWS b/NEWS
index 8b788c8195..a324c10ba6 100644
--- a/NEWS
+++ b/NEWS
@@ -10,11 +10,11 @@ Version 2.21
 * The following bugs are resolved with this release:
 
   6652, 10672, 12847, 12926, 13862, 14132, 14138, 14171, 14498, 15215,
-  15884, 16469, 16619, 16657, 16740, 16857, 17192, 17266, 17344, 17363,
-  17370, 17371, 17411, 17460, 17475, 17485, 17501, 17506, 17508, 17522,
-  17555, 17570, 17571, 17572, 17573, 17574, 17581, 17582, 17583, 17584,
-  17585, 17589, 17594, 17601, 17608, 17616, 17625, 17633, 17634, 17647,
-  17653, 17664, 17665, 17668, 17682.
+  15884, 16469, 16617, 16619, 16657, 16740, 16857, 17192, 17266, 17344,
+  17363, 17370, 17371, 17411, 17460, 17475, 17485, 17501, 17506, 17508,
+  17522, 17555, 17570, 17571, 17572, 17573, 17574, 17581, 17582, 17583,
+  17584, 17585, 17589, 17594, 17601, 17608, 17616, 17625, 17633, 17634,
+  17647, 17653, 17664, 17665, 17668, 17682.
 
 * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
   under certain input conditions resulting in the execution of a shell for
@@ -22,6 +22,9 @@ Version 2.21
   implementation now checks WRDE_NOCMD immediately before executing the
   shell and returns the error WRDE_CMDSUB as expected.
 
+* CVE-2012-3406 printf-style functions could run into a stack overflow when
+  processing format strings with a large number of format specifiers.
+
 * The minimum GCC version that can be used to build this version of the GNU
   C Library is GCC 4.6.  Older GCC versions, and non-GNU compilers, can
   still be used to compile programs using the GNU C Library.