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- ensure that the compiler is invoked with "-fwrapv" (rhbz#594819)

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- reformat whitespace in audioop.c (patch 106)
- CVE-2010-1634: fix various integer overflow checks in the audioop module
    (patch 107)
- CVE-2010-2089: further checks within the audioop module (patch 108)
- CVE-2008-5983: the new PySys_SetArgvEx entry point from r81399 (patch
    109)
This commit is contained in:
dmalcolm 2010-06-04 19:56:30 +00:00
parent 66cf571b61
commit 5c9590b543
5 changed files with 3400 additions and 4 deletions
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120
python-3.1.2-CVE-2008-5983.patch Normal file
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@ -0,0 +1,120 @@
diff -up Python-3.1.2/Doc/c-api/init.rst.CVE-2008-5983 Python-3.1.2/Doc/c-api/init.rst
--- Python-3.1.2/Doc/c-api/init.rst.CVE-2008-5983 2010-01-09 13:48:46.000000000 -0500
+++ Python-3.1.2/Doc/c-api/init.rst 2010-06-04 15:19:26.724089244 -0400
@@ -22,6 +22,7 @@ Initialization, Finalization, and Thread
module: sys
triple: module; search; path
single: PySys_SetArgv()
+ single: PySys_SetArgvEx()
single: Py_Finalize()
Initialize the Python interpreter. In an application embedding Python, this
@@ -31,7 +32,7 @@ Initialization, Finalization, and Thread
the table of loaded modules (``sys.modules``), and creates the fundamental
modules :mod:`builtins`, :mod:`__main__` and :mod:`sys`. It also initializes
the module search path (``sys.path``). It does not set ``sys.argv``; use
- :cfunc:`PySys_SetArgv` for that. This is a no-op when called for a second time
+ :cfunc:`PySys_SetArgvEx` for that. This is a no-op when called for a second time
(without calling :cfunc:`Py_Finalize` first). There is no return value; it is a
fatal error if the initialization fails.
@@ -344,7 +345,7 @@ Initialization, Finalization, and Thread
``sys.version``.
-.. cfunction:: void PySys_SetArgv(int argc, wchar_t **argv)
+.. cfunction:: void PySys_SetArgvEx(int argc, wchar_t **argv, int updatepath)
.. index::
single: main()
@@ -359,14 +360,41 @@ Initialization, Finalization, and Thread
string. If this function fails to initialize :data:`sys.argv`, a fatal
condition is signalled using :cfunc:`Py_FatalError`.
- This function also prepends the executed script's path to :data:`sys.path`.
- If no script is executed (in the case of calling ``python -c`` or just the
- interactive interpreter), the empty string is used instead.
+ If *updatepath* is zero, this is all the function does. If *updatepath*
+ is non-zero, the function also modifies :data:`sys.path` according to the
+ following algorithm:
+
+ - If the name of an existing script is passed in ``argv[0]``, the absolute
+ path of the directory where the script is located is prepended to
+ :data:`sys.path`.
+ - Otherwise (that is, if *argc* is 0 or ``argv[0]`` doesn't point
+ to an existing file name), an empty string is prepended to
+ :data:`sys.path`, which is the same as prepending the current working
+ directory (``"."``).
+
+ .. note::
+ It is recommended that applications embedding the Python interpreter
+ for purposes other than executing a single script pass 0 as *updatepath*,
+ and update :data:`sys.path` themselves if desired.
+ See `CVE-2008-5983 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.
+
+ On versions before 3.1.3, you can achieve the same effect by manually
+ popping the first :data:`sys.path` element after having called
+ :cfunc:`PySys_SetArgv`, for example using::
+
+ PyRun_SimpleString("import sys; sys.path.pop(0)\n");
+
+ .. versionadded:: 3.1.3
.. XXX impl. doesn't seem consistent in allowing 0/NULL for the params;
check w/ Guido.
+.. cfunction:: void PySys_SetArgv(int argc, wchar_t **argv)
+
+ This function works like :cfunc:`PySys_SetArgv` with *updatepath* set to 1.
+
+
.. cfunction:: void Py_SetPythonHome(wchar_t *home)
Set the default "home" directory, that is, the location of the standard
diff -up Python-3.1.2/Include/sysmodule.h.CVE-2008-5983 Python-3.1.2/Include/sysmodule.h
--- Python-3.1.2/Include/sysmodule.h.CVE-2008-5983 2008-04-13 09:53:33.000000000 -0400
+++ Python-3.1.2/Include/sysmodule.h 2010-06-04 15:19:26.721088968 -0400
@@ -10,6 +10,7 @@ extern "C" {
PyAPI_FUNC(PyObject *) PySys_GetObject(const char *);
PyAPI_FUNC(int) PySys_SetObject(const char *, PyObject *);
PyAPI_FUNC(void) PySys_SetArgv(int, wchar_t **);
+PyAPI_FUNC(void) PySys_SetArgvEx(int, wchar_t **, int);
PyAPI_FUNC(void) PySys_SetPath(const wchar_t *);
PyAPI_FUNC(void) PySys_WriteStdout(const char *format, ...)
diff -up Python-3.1.2/Misc/NEWS.CVE-2008-5983 Python-3.1.2/Misc/NEWS
diff -up Python-3.1.2/Python/sysmodule.c.CVE-2008-5983 Python-3.1.2/Python/sysmodule.c
--- Python-3.1.2/Python/sysmodule.c.CVE-2008-5983 2010-06-04 15:19:26.000000000 -0400
+++ Python-3.1.2/Python/sysmodule.c 2010-06-04 15:20:59.932964188 -0400
@@ -1561,7 +1561,7 @@ _wrealpath(const wchar_t *path, wchar_t
#endif
void
-PySys_SetArgv(int argc, wchar_t **argv)
+PySys_SetArgvEx(int argc, wchar_t **argv, int updatepath)
{
#if defined(HAVE_REALPATH)
wchar_t fullpath[MAXPATHLEN];
@@ -1574,7 +1574,7 @@ PySys_SetArgv(int argc, wchar_t **argv)
Py_FatalError("no mem for sys.argv");
if (PySys_SetObject("argv", av) != 0)
Py_FatalError("can't assign sys.argv");
- if (path != NULL) {
+ if (updatepath && path != NULL) {
wchar_t *argv0 = argv[0];
wchar_t *p = NULL;
Py_ssize_t n = 0;
@@ -1661,6 +1661,12 @@ PySys_SetArgv(int argc, wchar_t **argv)
Py_DECREF(av);
}
+void
+PySys_SetArgv(int argc, wchar_t **argv)
+{
+ PySys_SetArgvEx(argc, argv, 1);
+}
+
/* APIs to write to sys.stdout or sys.stderr using a printf-like interface.
Adapted from code submitted by Just van Rossum.

209
python-3.1.2-CVE-2010-1634.patch Normal file
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@ -0,0 +1,209 @@
--- python/branches/py3k/Modules/audioop.c 2010/05/09 15:52:27 81032
+++ python/branches/py3k/Modules/audioop.c 2010/05/11 13:09:58 81081
@@ -834,7 +834,7 @@
audioop_tostereo(PyObject *self, PyObject *args)
{
signed char *cp, *ncp;
- int len, new_len, size, val1, val2, val = 0;
+ int len, size, val1, val2, val = 0;
double fac1, fac2, fval, maxval;
PyObject *rv;
int i;
@@ -851,14 +851,13 @@
return 0;
}
- new_len = len*2;
- if (new_len < 0) {
+ if (len > INT_MAX/2) {
PyErr_SetString(PyExc_MemoryError,
"not enough memory for output buffer");
return 0;
}
- rv = PyBytes_FromStringAndSize(NULL, new_len);
+ rv = PyBytes_FromStringAndSize(NULL, len*2);
if ( rv == 0 )
return 0;
ncp = (signed char *)PyBytes_AsString(rv);
@@ -1021,7 +1020,7 @@
{
signed char *cp;
unsigned char *ncp;
- int len, new_len, size, size2, val = 0;
+ int len, size, size2, val = 0;
PyObject *rv;
int i, j;
@@ -1035,13 +1034,12 @@
return 0;
}
- new_len = (len/size)*size2;
- if (new_len < 0) {
+ if (len/size > INT_MAX/size2) {
PyErr_SetString(PyExc_MemoryError,
"not enough memory for output buffer");
return 0;
}
- rv = PyBytes_FromStringAndSize(NULL, new_len);
+ rv = PyBytes_FromStringAndSize(NULL, (len/size)*size2);
if ( rv == 0 )
return 0;
ncp = (unsigned char *)PyBytes_AsString(rv);
@@ -1077,7 +1075,6 @@
int chan, d, *prev_i, *cur_i, cur_o;
PyObject *state, *samps, *str, *rv = NULL;
int bytes_per_frame;
- size_t alloc_size;
weightA = 1;
weightB = 0;
@@ -1120,14 +1117,13 @@
inrate /= d;
outrate /= d;
- alloc_size = sizeof(int) * (unsigned)nchannels;
- if (alloc_size < (unsigned)nchannels) {
+ if ((size_t)nchannels > PY_SIZE_MAX/sizeof(int)) {
PyErr_SetString(PyExc_MemoryError,
"not enough memory for output buffer");
return 0;
}
- prev_i = (int *) malloc(alloc_size);
- cur_i = (int *) malloc(alloc_size);
+ prev_i = (int *) malloc(nchannels * sizeof(int));
+ cur_i = (int *) malloc(nchannels * sizeof(int));
if (prev_i == NULL || cur_i == NULL) {
(void) PyErr_NoMemory();
goto exit;
@@ -1164,25 +1160,16 @@
ceiling(len*outrate/inrate) output frames, and each frame
requires bytes_per_frame bytes. Computing this
without spurious overflow is the challenge; we can
- settle for a reasonable upper bound, though. */
- int ceiling; /* the number of output frames */
- int nbytes; /* the number of output bytes needed */
- int q = len / inrate;
- /* Now len = q * inrate + r exactly (with r = len % inrate),
- and this is less than q * inrate + inrate = (q+1)*inrate.
- So a reasonable upper bound on len*outrate/inrate is
- ((q+1)*inrate)*outrate/inrate =
- (q+1)*outrate.
- */
- ceiling = (q+1) * outrate;
- nbytes = ceiling * bytes_per_frame;
- /* See whether anything overflowed; if not, get the space. */
- if (q+1 < 0 ||
- ceiling / outrate != q+1 ||
- nbytes / bytes_per_frame != ceiling)
+ settle for a reasonable upper bound, though, in this
+ case ceiling(len/inrate) * outrate. */
+
+ /* compute ceiling(len/inrate) without overflow */
+ int q = len > 0 ? 1 + (len - 1) / inrate : 0;
+ if (outrate > INT_MAX / q / bytes_per_frame)
str = NULL;
else
- str = PyBytes_FromStringAndSize(NULL, nbytes);
+ str = PyBytes_FromStringAndSize(NULL,
+ q * outrate * bytes_per_frame);
if (str == NULL) {
PyErr_SetString(PyExc_MemoryError,
@@ -1300,7 +1287,7 @@
unsigned char *cp;
unsigned char cval;
signed char *ncp;
- int len, new_len, size, val;
+ int len, size, val;
PyObject *rv;
int i;
@@ -1313,18 +1300,17 @@
return 0;
}
- new_len = len*size;
- if (new_len < 0) {
+ if (len > INT_MAX/size) {
PyErr_SetString(PyExc_MemoryError,
"not enough memory for output buffer");
return 0;
}
- rv = PyBytes_FromStringAndSize(NULL, new_len);
+ rv = PyBytes_FromStringAndSize(NULL, len*size);
if ( rv == 0 )
return 0;
ncp = (signed char *)PyBytes_AsString(rv);
- for ( i=0; i < new_len; i += size ) {
+ for ( i=0; i < len*size; i += size ) {
cval = *cp++;
val = st_ulaw2linear16(cval);
@@ -1374,7 +1360,7 @@
unsigned char *cp;
unsigned char cval;
signed char *ncp;
- int len, new_len, size, val;
+ int len, size, val;
PyObject *rv;
int i;
@@ -1387,18 +1373,17 @@
return 0;
}
- new_len = len*size;
- if (new_len < 0) {
+ if (len > INT_MAX/size) {
PyErr_SetString(PyExc_MemoryError,
"not enough memory for output buffer");
return 0;
}
- rv = PyBytes_FromStringAndSize(NULL, new_len);
+ rv = PyBytes_FromStringAndSize(NULL, len*size);
if ( rv == 0 )
return 0;
ncp = (signed char *)PyBytes_AsString(rv);
- for ( i=0; i < new_len; i += size ) {
+ for ( i=0; i < len*size; i += size ) {
cval = *cp++;
val = st_alaw2linear16(cval);
@@ -1523,7 +1508,7 @@
{
signed char *cp;
signed char *ncp;
- int len, new_len, size, valpred, step, delta, index, sign, vpdiff;
+ int len, size, valpred, step, delta, index, sign, vpdiff;
PyObject *rv, *str, *state;
int i, inputbuffer = 0, bufferstep;
@@ -1545,13 +1530,12 @@
} else if ( !PyArg_ParseTuple(state, "ii", &valpred, &index) )
return 0;
- new_len = len*size*2;
- if (new_len < 0) {
+ if (len > (INT_MAX/2)/size) {
PyErr_SetString(PyExc_MemoryError,
"not enough memory for output buffer");
return 0;
}
- str = PyBytes_FromStringAndSize(NULL, new_len);
+ str = PyBytes_FromStringAndSize(NULL, len*size*2);
if ( str == 0 )
return 0;
ncp = (signed char *)PyBytes_AsString(str);
@@ -1559,7 +1543,7 @@
step = stepsizeTable[index];
bufferstep = 0;
- for ( i=0; i < new_len; i += size ) {
+ for ( i=0; i < len*size*2; i += size ) {
/* Step 1 - get the delta value and compute next index */
if ( bufferstep ) {
delta = inputbuffer & 0xf;

313
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@ -0,0 +1,313 @@
diff -up Python-3.1.2/Modules/audioop.c.CVE-2010-2089 Python-3.1.2/Modules/audioop.c
--- Python-3.1.2/Modules/audioop.c.CVE-2010-2089 2010-06-04 14:55:04.281964205 -0400
+++ Python-3.1.2/Modules/audioop.c 2010-06-04 15:04:32.896088959 -0400
@@ -295,6 +295,29 @@ static int stepsizeTable[89] = {
static PyObject *AudioopError;
+static int
+audioop_check_size(int size)
+{
+ if ( size != 1 && size != 2 && size != 4 ) {
+ PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+static int
+audioop_check_parameters(int len, int size)
+{
+ if (!audioop_check_size(size))
+ return 0;
+ if ( len % size != 0 ) {
+ PyErr_SetString(AudioopError, "not a whole number of frames");
+ return 0;
+ }
+ return 1;
+}
+
static PyObject *
audioop_getsample(PyObject *self, PyObject *args)
{
@@ -304,10 +327,8 @@ audioop_getsample(PyObject *self, PyObje
if ( !PyArg_ParseTuple(args, "s#ii:getsample", &cp, &len, &size, &i) )
return 0;
- if ( size != 1 && size != 2 && size != 4 ) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
if ( i < 0 || i >= len/size ) {
PyErr_SetString(AudioopError, "Index out of range");
return 0;
@@ -328,10 +349,8 @@ audioop_max(PyObject *self, PyObject *ar
if ( !PyArg_ParseTuple(args, "s#i:max", &cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4 ) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
for ( i=0; i<len; i+= size) {
if ( size == 1 ) val = (int)*CHARP(cp, i);
else if ( size == 2 ) val = (int)*SHORTP(cp, i);
@@ -352,10 +371,8 @@ audioop_minmax(PyObject *self, PyObject
if (!PyArg_ParseTuple(args, "s#i:minmax", &cp, &len, &size))
return NULL;
- if (size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
+ if (!audioop_check_parameters(len, size))
return NULL;
- }
for (i = 0; i < len; i += size) {
if (size == 1) val = (int) *CHARP(cp, i);
else if (size == 2) val = (int) *SHORTP(cp, i);
@@ -376,10 +393,8 @@ audioop_avg(PyObject *self, PyObject *ar
if ( !PyArg_ParseTuple(args, "s#i:avg", &cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4 ) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
for ( i=0; i<len; i+= size) {
if ( size == 1 ) val = (int)*CHARP(cp, i);
else if ( size == 2 ) val = (int)*SHORTP(cp, i);
@@ -403,10 +418,8 @@ audioop_rms(PyObject *self, PyObject *ar
if ( !PyArg_ParseTuple(args, "s#i:rms", &cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4 ) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
for ( i=0; i<len; i+= size) {
if ( size == 1 ) val = (int)*CHARP(cp, i);
else if ( size == 2 ) val = (int)*SHORTP(cp, i);
@@ -614,10 +627,8 @@ audioop_avgpp(PyObject *self, PyObject *
if ( !PyArg_ParseTuple(args, "s#i:avgpp", &cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4 ) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
/* Compute first delta value ahead. Also automatically makes us
** skip the first extreme value
*/
@@ -671,10 +682,8 @@ audioop_maxpp(PyObject *self, PyObject *
if ( !PyArg_ParseTuple(args, "s#i:maxpp", &cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4 ) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
/* Compute first delta value ahead. Also automatically makes us
** skip the first extreme value
*/
@@ -722,10 +731,8 @@ audioop_cross(PyObject *self, PyObject *
if ( !PyArg_ParseTuple(args, "s#i:cross", &cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4 ) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
ncross = -1;
prevval = 17; /* Anything <> 0,1 */
for ( i=0; i<len; i+= size) {
@@ -751,6 +758,9 @@ audioop_mul(PyObject *self, PyObject *ar
if ( !PyArg_ParseTuple(args, "s#id:mul", &cp, &len, &size, &factor ) )
return 0;
+ if (!audioop_check_parameters(len, size))
+ return NULL;
+
if ( size == 1 ) maxval = (double) 0x7f;
else if ( size == 2 ) maxval = (double) 0x7fff;
else if ( size == 4 ) maxval = (double) 0x7fffffff;
@@ -793,6 +803,14 @@ audioop_tomono(PyObject *self, PyObject
if ( !PyArg_ParseTuple(args, "s*idd:tomono",
&pcp, &size, &fac1, &fac2 ) )
return 0;
+
+ if (!audioop_check_parameters(len, size))
+ return NULL;
+ if ( ((len / size) & 1) != 0 ) {
+ PyErr_SetString(AudioopError, "not a whole number of frames");
+ return NULL;
+ }
+
cp = pcp.buf;
len = pcp.len;
@@ -843,6 +861,9 @@ audioop_tostereo(PyObject *self, PyObjec
&cp, &len, &size, &fac1, &fac2 ) )
return 0;
+ if (!audioop_check_parameters(len, size))
+ return NULL;
+
if ( size == 1 ) maxval = (double) 0x7f;
else if ( size == 2 ) maxval = (double) 0x7fff;
else if ( size == 4 ) maxval = (double) 0x7fffffff;
@@ -901,6 +922,9 @@ audioop_add(PyObject *self, PyObject *ar
&cp1, &len1, &cp2, &len2, &size ) )
return 0;
+ if (!audioop_check_parameters(len1, size))
+ return NULL;
+
if ( len1 != len2 ) {
PyErr_SetString(AudioopError, "Lengths should be the same");
return 0;
@@ -955,10 +979,8 @@ audioop_bias(PyObject *self, PyObject *a
&cp, &len, &size , &bias) )
return 0;
- if ( size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
rv = PyBytes_FromStringAndSize(NULL, len);
if ( rv == 0 )
@@ -991,10 +1013,8 @@ audioop_reverse(PyObject *self, PyObject
&cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4 ) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
rv = PyBytes_FromStringAndSize(NULL, len);
if ( rv == 0 )
@@ -1028,11 +1048,10 @@ audioop_lin2lin(PyObject *self, PyObject
&cp, &len, &size, &size2) )
return 0;
- if ( (size != 1 && size != 2 && size != 4) ||
- (size2 != 1 && size2 != 2 && size2 != 4)) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
+ if (!audioop_check_size(size2))
+ return NULL;
if (len/size > INT_MAX/size2) {
PyErr_SetString(PyExc_MemoryError,
@@ -1082,10 +1101,8 @@ audioop_ratecv(PyObject *self, PyObject
&nchannels, &inrate, &outrate, &state,
&weightA, &weightB))
return NULL;
- if (size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
+ if (!audioop_check_size(size))
return NULL;
- }
if (nchannels < 1) {
PyErr_SetString(AudioopError, "# of channels should be >= 1");
return NULL;
@@ -1261,10 +1278,8 @@ audioop_lin2ulaw(PyObject *self, PyObjec
&cp, &len, &size) )
return 0 ;
- if ( size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
rv = PyBytes_FromStringAndSize(NULL, len/size);
if ( rv == 0 )
@@ -1295,10 +1310,8 @@ audioop_ulaw2lin(PyObject *self, PyObjec
&cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_size(size))
+ return NULL;
if (len > INT_MAX/size) {
PyErr_SetString(PyExc_MemoryError,
@@ -1334,10 +1347,8 @@ audioop_lin2alaw(PyObject *self, PyObjec
&cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
rv = PyBytes_FromStringAndSize(NULL, len/size);
if ( rv == 0 )
@@ -1368,10 +1379,8 @@ audioop_alaw2lin(PyObject *self, PyObjec
&cp, &len, &size) )
return 0;
- if ( size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_size(size))
+ return NULL;
if (len > INT_MAX/size) {
PyErr_SetString(PyExc_MemoryError,
@@ -1409,10 +1418,8 @@ audioop_lin2adpcm(PyObject *self, PyObje
return 0;
- if ( size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_parameters(len, size))
+ return NULL;
str = PyBytes_FromStringAndSize(NULL, len/(size*2));
if ( str == 0 )
@@ -1516,10 +1523,8 @@ audioop_adpcm2lin(PyObject *self, PyObje
&cp, &len, &size, &state) )
return 0;
- if ( size != 1 && size != 2 && size != 4) {
- PyErr_SetString(AudioopError, "Size should be 1, 2 or 4");
- return 0;
- }
+ if (!audioop_check_size(size))
+ return NULL;
/* Decode state, should have (value, step) */
if ( state == Py_None ) {

2727
python-3.1.2-reformat-audioop.c.patch Normal file
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File diff suppressed because it is too large Load Diff

35
python3.spec
View File

@ -40,7 +40,7 @@
Summary: Version 3 of the Python programming language aka Python 3000
Name: python3
Version: %{pybasever}.2
Release: 9%{?dist}
Release: 10%{?dist}
License: Python
Group: Development/Languages
Source: http://python.org/ftp/python/%{version}/Python-%{version}.tar.bz2
@ -204,6 +204,21 @@ Patch104: python-3.1.2-more-configuration-flags.patch
# (rhbz:553020); partially upstream as http://bugs.python.org/issue7647
Patch105: python-2.6.5-statvfs-f_flag-constants.patch
# This is the Modules/audioop.c part of the whitespace cleanup in r81032, to make it
# easier to apply subsequent security fixes:
Patch106: python-3.1.2-reformat-audioop.c.patch
# CVE-2010-1634: fix various integer overflow checks in the audioop module
# This is the difference from r81032 to r81081 (i.e r81047 and r81081)
Patch107: python-3.1.2-CVE-2010-1634.patch
# CVE-2010-2089: verify sizes/lengths within audioop module:
Patch108: python-3.1.2-CVE-2010-2089.patch
# CVE-2008-5983: the new PySys_SetArgvEx entry point from r81400 (backported to
# the old layout before the whitespace cleanup of release31-maint in r81033):
Patch109: python-3.1.2-CVE-2008-5983.patch
BuildRoot: %{_tmppath}/%{name}-%{version}-root
BuildRequires: readline-devel, openssl-devel, gmp-devel
BuildRequires: ncurses-devel, gdbm-devel, zlib-devel, expat-devel
@ -357,6 +372,10 @@ rm -r Modules/zlib || exit 1
%patch105 -p1 -b .statvfs-f-flag-constants
%patch106 -p3 -b .reformat-audioop
%patch107 -p3 -b .CVE-2010-1634
%patch108 -p1 -b .CVE-2010-2089
%patch109 -p1 -b .CVE-2008-5983
# Currently (2010-01-15), http://docs.python.org/library is for 2.6, and there
# are many differences between 2.6 and the Python 3 library.
@ -370,10 +389,10 @@ sed --in-place \
%build
topdir=$(pwd)
export CFLAGS="$RPM_OPT_FLAGS -D_GNU_SOURCE -fPIC"
export CXXFLAGS="$RPM_OPT_FLAGS -D_GNU_SOURCE -fPIC"
export CFLAGS="$RPM_OPT_FLAGS -D_GNU_SOURCE -fPIC -fwrapv"
export CXXFLAGS="$RPM_OPT_FLAGS -D_GNU_SOURCE -fPIC -fwrapv"
export CPPFLAGS="`pkg-config --cflags-only-I libffi`"
export OPT="$RPM_OPT_FLAGS -D_GNU_SOURCE -fPIC"
export OPT="$RPM_OPT_FLAGS -D_GNU_SOURCE -fPIC -fwrapv"
export LINKCC="gcc"
export CFLAGS="$CFLAGS `pkg-config --cflags openssl`"
export LDFLAGS="$LDFLAGS `pkg-config --libs-only-L openssl`"
@ -1038,6 +1057,14 @@ rm -fr %{buildroot}
%changelog
* Fri Jun 4 2010 David Malcolm <dmalcolm@redhat.com> - 3.1.2-10
- ensure that the compiler is invoked with "-fwrapv" (rhbz#594819)
- reformat whitespace in audioop.c (patch 106)
- CVE-2010-1634: fix various integer overflow checks in the audioop
module (patch 107)
- CVE-2010-2089: further checks within the audioop module (patch 108)
- CVE-2008-5983: the new PySys_SetArgvEx entry point from r81399 (patch 109)
* Thu May 27 2010 Dan Horák <dan[at]danny.cz> - 3.1.2-9
- reading the timestamp counter is available only on some arches (see Python/ceval.c)