Author: aurel32
Date: 2012-07-17 14:47:36 +0000 (Tue, 17 Jul 2012)
New Revision: 5306
Added:
glibc-package/branches/glibc-branch-squeeze/debian/patches/any/cvs-vfprintf-many-format-strings.diff
glibc-package/branches/glibc-branch-squeeze/debian/patches/any/cvs-vfprintf-positional.diff
Modified:
glibc-package/branches/glibc-branch-squeeze/debian/changelog
glibc-package/branches/glibc-branch-squeeze/debian/patches/series
Log:
* patches/any/cvs-vfprintf-positional.diff: new patch from upstream to
fix a stack corruption in vfprintf with positional parameters
(CVE-2012-3404). patches/any/cvs-vfprintf-many-format-strings.diff: new
patch from upstream to fix a FORTIFY_SOURCE format string protection
bypass (CVE-2012-3405). Closes: #681473.
Modified: glibc-package/branches/glibc-branch-squeeze/debian/changelog
===================================================================
--- glibc-package/branches/glibc-branch-squeeze/debian/changelog
2012-07-17 14:12:04 UTC (rev 5305)
+++ glibc-package/branches/glibc-branch-squeeze/debian/changelog
2012-07-17 14:47:36 UTC (rev 5306)
@@ -1,6 +1,10 @@
eglibc (2.11.3-5) UNRELEASED; urgency=low
- *
+ * patches/any/cvs-vfprintf-positional.diff: new patch from upstream to
+ fix a stack corruption in vfprintf with positional parameters
+ (CVE-2012-3404). patches/any/cvs-vfprintf-many-format-strings.diff: new
+ patch from upstream to fix a FORTIFY_SOURCE format string protection
+ bypass (CVE-2012-3405). Closes: #681473.
-- Aurelien Jarno <aure...@debian.org> Wed, 06 Jun 2012 23:59:32 +0200
Added:
glibc-package/branches/glibc-branch-squeeze/debian/patches/any/cvs-vfprintf-many-format-strings.diff
===================================================================
---
glibc-package/branches/glibc-branch-squeeze/debian/patches/any/cvs-vfprintf-many-format-strings.diff
(rev 0)
+++
glibc-package/branches/glibc-branch-squeeze/debian/patches/any/cvs-vfprintf-many-format-strings.diff
2012-07-17 14:47:36 UTC (rev 5306)
@@ -0,0 +1,41 @@
+2011-12-17 Ulrich Drepper <drep...@gmail.com>
+
+ [BZ #13446]
+ * stdio-common/vfprintf.c (vfprintf): Fix extension of specs array.
+
+diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
+index 753a5ac..952886b 100644
+--- a/stdio-common/vfprintf.c
++++ b/stdio-common/vfprintf.c
+@@ -1640,9 +1640,9 @@ do_positional:
+ /* Array with information about the needed arguments. This has to
+ be dynamically extensible. */
+ size_t nspecs = 0;
+- size_t nspecs_max = 32; /* A more or less arbitrary start value. */
+- struct printf_spec *specs
+- = alloca (nspecs_max * sizeof (struct printf_spec));
++ /* A more or less arbitrary start value. */
++ size_t nspecs_size = 32 * sizeof (struct printf_spec);
++ struct printf_spec *specs = alloca (nspecs_size);
+
+ /* The number of arguments the format string requests. This will
+ determine the size of the array needed to store the argument
+@@ -1679,15 +1679,14 @@ do_positional:
+
+ for (f = lead_str_end; *f != L_('\0'); f = specs[nspecs++].next_fmt)
+ {
+- if (nspecs >= nspecs_max)
++ if (nspecs * sizeof (*specs) >= nspecs_size)
+ {
+ /* Extend the array of format specifiers. */
+ struct printf_spec *old = specs;
+- specs = extend_alloca (specs, nspecs_max,
+- 2 * nspecs_max * sizeof (*specs));
++ specs = extend_alloca (specs, nspecs_size, 2 * nspecs_size);
+
+ /* Copy the old array's elements to the new space. */
+- memmove (specs, old, nspecs * sizeof (struct printf_spec));
++ memmove (specs, old, nspecs * sizeof (*specs));
+ }
+
+ /* Parse the format specifier. */
Added:
glibc-package/branches/glibc-branch-squeeze/debian/patches/any/cvs-vfprintf-positional.diff
===================================================================
---
glibc-package/branches/glibc-branch-squeeze/debian/patches/any/cvs-vfprintf-positional.diff
(rev 0)
+++
glibc-package/branches/glibc-branch-squeeze/debian/patches/any/cvs-vfprintf-positional.diff
2012-07-17 14:47:36 UTC (rev 5306)
@@ -0,0 +1,20 @@
+2011-01-27 Petr Baudis <pa...@suse.cz>
+ Ulrich Drepper <drep...@gmail.com>
+
+ * stdio-common/vfprintf.c (vfprintf): Pass correct newlen
+ to extend_alloca().
+
+diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
+index fc370e8..cfa4c30 100644
+--- a/stdio-common/vfprintf.c
++++ b/stdio-common/vfprintf.c
+@@ -1682,7 +1682,8 @@ do_positional:
+ {
+ /* Extend the array of format specifiers. */
+ struct printf_spec *old = specs;
+- specs = extend_alloca (specs, nspecs_max, 2 * nspecs_max);
++ specs = extend_alloca (specs, nspecs_max,
++ 2 * nspecs_max * sizeof (*specs));
+
+ /* Copy the old array's elements to the new space. */
+ memmove (specs, old, nspecs * sizeof (struct printf_spec));
Modified: glibc-package/branches/glibc-branch-squeeze/debian/patches/series
===================================================================
--- glibc-package/branches/glibc-branch-squeeze/debian/patches/series
2012-07-17 14:12:04 UTC (rev 5305)
+++ glibc-package/branches/glibc-branch-squeeze/debian/patches/series
2012-07-17 14:47:36 UTC (rev 5306)
@@ -275,3 +275,5 @@
any/cvs-dlopen-tls.diff
any/cvs-FORTIFY_SOURCE-format-strings.diff
any/local-sunrpc-dos.diff
+any/cvs-vfprintf-positional.diff
+any/cvs-vfprintf-many-format-strings.diff
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