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* gnu/packages/patches/python-CVE-2018-14647.patch: New file. * gnu/local.mk (dist_patch_DATA): Register it. * gnu/packages/python.scm (python-3/fixed): New variable. (python-3.6)[replacement]: New field. (python-minimal, python-debug, wrap-python3): Use PACKAGE/INHERIT instead of standard inheritance.
61 lines
2.1 KiB
Diff
61 lines
2.1 KiB
Diff
Fix CVE-2018-14647:
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14647
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https://bugs.python.org/issue34623
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Taken from upstream:
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https://github.com/python/cpython/commit/f7666e828cc3d5873136473ea36ba2013d624fa1
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diff --git Include/pyexpat.h Include/pyexpat.h
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index 44259bf6d7..07020b5dc9 100644
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--- Include/pyexpat.h
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+++ Include/pyexpat.h
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@@ -3,7 +3,7 @@
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/* note: you must import expat.h before importing this module! */
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-#define PyExpat_CAPI_MAGIC "pyexpat.expat_CAPI 1.0"
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+#define PyExpat_CAPI_MAGIC "pyexpat.expat_CAPI 1.1"
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#define PyExpat_CAPSULE_NAME "pyexpat.expat_CAPI"
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struct PyExpat_CAPI
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@@ -48,6 +48,8 @@ struct PyExpat_CAPI
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enum XML_Status (*SetEncoding)(XML_Parser parser, const XML_Char *encoding);
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int (*DefaultUnknownEncodingHandler)(
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void *encodingHandlerData, const XML_Char *name, XML_Encoding *info);
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+ /* might be none for expat < 2.1.0 */
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+ int (*SetHashSalt)(XML_Parser parser, unsigned long hash_salt);
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/* always add new stuff to the end! */
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};
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diff --git Modules/_elementtree.c Modules/_elementtree.c
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index 707ab2912b..53f05f937f 100644
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--- Modules/_elementtree.c
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+++ Modules/_elementtree.c
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@@ -3261,6 +3261,11 @@ _elementtree_XMLParser___init___impl(XMLParserObject *self, PyObject *html,
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PyErr_NoMemory();
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return -1;
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}
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+ /* expat < 2.1.0 has no XML_SetHashSalt() */
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+ if (EXPAT(SetHashSalt) != NULL) {
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+ EXPAT(SetHashSalt)(self->parser,
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+ (unsigned long)_Py_HashSecret.expat.hashsalt);
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+ }
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if (target) {
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Py_INCREF(target);
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diff --git Modules/pyexpat.c Modules/pyexpat.c
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index 47c3e86c20..aa21d93c11 100644
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--- Modules/pyexpat.c
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+++ Modules/pyexpat.c
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@@ -1887,6 +1887,11 @@ MODULE_INITFUNC(void)
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capi.SetStartDoctypeDeclHandler = XML_SetStartDoctypeDeclHandler;
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capi.SetEncoding = XML_SetEncoding;
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capi.DefaultUnknownEncodingHandler = PyUnknownEncodingHandler;
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+#if XML_COMBINED_VERSION >= 20100
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+ capi.SetHashSalt = XML_SetHashSalt;
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+#else
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+ capi.SetHashSalt = NULL;
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+#endif
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/* export using capsule */
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capi_object = PyCapsule_New(&capi, PyExpat_CAPSULE_NAME, NULL);
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