From a54804765831ea06a0a3d5c69a77ac71e1998a5d Mon Sep 17 00:00:00 2001 From: Eike Rathke Date: Thu, 20 Apr 2017 20:54:49 +0200 Subject: [PATCH] Resolves: rhbz#1444101 CVE-2017-7867 CVE-2017-7868 --- icu.spec | 7 +- rhbz1444101-icu-changeset-39671.patch | 156 ++++++++++++++++++++++++++ 2 files changed, 162 insertions(+), 1 deletion(-) create mode 100644 rhbz1444101-icu-changeset-39671.patch diff --git a/icu.spec b/icu.spec index cc52598..14b22b4 100644 --- a/icu.spec +++ b/icu.spec @@ -2,7 +2,7 @@ Name: icu Version: 57.1 -Release: 5%{?dist} +Release: 6%{?dist} Summary: International Components for Unicode License: MIT and UCD and Public Domain @@ -21,6 +21,7 @@ Patch5: icuinfo-man.patch Patch6: armv7hl-disable-tests.patch Patch7: rhbz1360340-icu-changeset-39109.patch Patch8: diff-icu_trunk_source_common_locid.cpp-from-39282-to-39384.patch +Patch9: rhbz1444101-icu-changeset-39671.patch %description Tools and utilities for developing with icu. @@ -71,6 +72,7 @@ BuildArch: noarch %endif %patch7 -p1 -b .rhbz1360340-icu-changeset-39109.patch %patch8 -p1 -b .diff-icu_trunk_source_common_locid.cpp-from-39282-to-39384.patch +%patch9 -p1 -b .rhbz1444101-icu-changeset-39671.patch %build @@ -199,6 +201,9 @@ LD_LIBRARY_PATH=lib:stubdata:tools/ctestfw:$LD_LIBRARY_PATH bin/uconv -l %changelog +* Thu Apr 20 2017 Eike Rathke - 57.1-6 +- Resolves: rhbz#1444101 CVE-2017-7867 CVE-2017-7868 + * Fri Feb 10 2017 Fedora Release Engineering - 57.1-5 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild diff --git a/rhbz1444101-icu-changeset-39671.patch b/rhbz1444101-icu-changeset-39671.patch new file mode 100644 index 0000000..59e4375 --- /dev/null +++ b/rhbz1444101-icu-changeset-39671.patch @@ -0,0 +1,156 @@ +# https://ssl.icu-project.org/trac/changeset/39671 +Index: /trunk/icu4c/source/common/utext.cpp +=================================================================== +--- icu.orig/source/common/utext.cpp ++++ icu/source/common/utext.cpp +@@ -848,7 +848,13 @@ + + // Chunk size. +-// Must be less than 85, because of byte mapping from UChar indexes to native indexes. +-// Worst case is three native bytes to one UChar. (Supplemenaries are 4 native bytes +-// to two UChars.) ++// Must be less than 42 (256/6), because of byte mapping from UChar indexes to native indexes. ++// Worst case there are six UTF-8 bytes per UChar. ++// obsolete 6 byte form fd + 5 trails maps to fffd ++// obsolete 5 byte form fc + 4 trails maps to fffd ++// non-shortest 4 byte forms maps to fffd ++// normal supplementaries map to a pair of utf-16, two utf8 bytes per utf-16 unit ++// mapToUChars array size must allow for the worst case, 6. ++// This could be brought down to 4, by treating fd and fc as pure illegal, ++// rather than obsolete lead bytes. But that is not compatible with the utf-8 access macros. + // + enum { UTF8_TEXT_CHUNK_SIZE=32 }; +@@ -890,5 +896,5 @@ + // one for a supplementary starting in the last normal position, + // and one for an entry for the buffer limit position. +- uint8_t mapToUChars[UTF8_TEXT_CHUNK_SIZE*3+6]; // Map native offset from bufNativeStart to ++ uint8_t mapToUChars[UTF8_TEXT_CHUNK_SIZE*6+6]; // Map native offset from bufNativeStart to + // correspoding offset in filled part of buf. + int32_t align; +@@ -1033,4 +1039,5 @@ + u8b = (UTF8Buf *)ut->p; // the current buffer + mapIndex = ix - u8b->toUCharsMapStart; ++ U_ASSERT(mapIndex < (int32_t)sizeof(UTF8Buf::mapToUChars)); + ut->chunkOffset = u8b->mapToUChars[mapIndex] - u8b->bufStartIdx; + return TRUE; +@@ -1299,4 +1306,8 @@ + // If index is at the end, there is no character there to look at. + if (ix != ut->b) { ++ // Note: this function will only move the index back if it is on a trail byte ++ // and there is a preceding lead byte and the sequence from the lead ++ // through this trail could be part of a valid UTF-8 sequence ++ // Otherwise the index remains unchanged. + U8_SET_CP_START(s8, 0, ix); + } +@@ -1312,5 +1323,8 @@ + uint8_t *mapToNative = u8b->mapToNative; + uint8_t *mapToUChars = u8b->mapToUChars; +- int32_t toUCharsMapStart = ix - (UTF8_TEXT_CHUNK_SIZE*3 + 1); ++ int32_t toUCharsMapStart = ix - sizeof(UTF8Buf::mapToUChars) + 1; ++ // Note that toUCharsMapStart can be negative. Happens when the remaining ++ // text from current position to the beginning is less than the buffer size. ++ // + 1 because mapToUChars must have a slot at the end for the bufNativeLimit entry. + int32_t destIx = UTF8_TEXT_CHUNK_SIZE+2; // Start in the overflow region + // at end of buffer to leave room +@@ -1339,4 +1353,5 @@ + // Special case ASCII range for speed. + buf[destIx] = (UChar)c; ++ U_ASSERT(toUCharsMapStart <= srcIx); + mapToUChars[srcIx - toUCharsMapStart] = (uint8_t)destIx; + mapToNative[destIx] = (uint8_t)(srcIx - toUCharsMapStart); +@@ -1368,4 +1383,5 @@ + mapToUChars[sIx-- - toUCharsMapStart] = (uint8_t)destIx; + } while (sIx >= srcIx); ++ U_ASSERT(toUCharsMapStart <= (srcIx+1)); + + // Set native indexing limit to be the current position. +@@ -1542,4 +1558,5 @@ + U_ASSERT(index<=ut->chunkNativeLimit); + int32_t mapIndex = index - u8b->toUCharsMapStart; ++ U_ASSERT(mapIndex < (int32_t)sizeof(UTF8Buf::mapToUChars)); + int32_t offset = u8b->mapToUChars[mapIndex] - u8b->bufStartIdx; + U_ASSERT(offset>=0 && offset<=ut->chunkLength); +Index: /trunk/icu4c/source/test/intltest/utxttest.cpp +=================================================================== +--- icu.orig/source/test/intltest/utxttest.cpp ++++ icu/source/test/intltest/utxttest.cpp +@@ -68,4 +68,6 @@ + case 7: name = "Ticket12130"; + if (exec) Ticket12130(); break; ++ case 8: name = "Ticket12888"; ++ if (exec) Ticket12888(); break; + default: name = ""; break; + } +@@ -1584,2 +1586,62 @@ + utext_close(&ut); + } ++ ++// Ticket 12888: bad handling of illegal utf-8 containing many instances of the archaic, now illegal, ++// six byte utf-8 forms. Original implementation had an assumption that ++// there would be at most three utf-8 bytes per UTF-16 code unit. ++// The five and six byte sequences map to a single replacement character. ++ ++void UTextTest::Ticket12888() { ++ const char *badString = ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80" ++ "\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80\xfd\x80\x80\x80\x80\x80"; ++ ++ UErrorCode status = U_ZERO_ERROR; ++ LocalUTextPointer ut(utext_openUTF8(NULL, badString, -1, &status)); ++ TEST_SUCCESS(status); ++ for (;;) { ++ UChar32 c = utext_next32(ut.getAlias()); ++ if (c == U_SENTINEL) { ++ break; ++ } ++ } ++ int32_t endIdx = utext_getNativeIndex(ut.getAlias()); ++ if (endIdx != (int32_t)strlen(badString)) { ++ errln("%s:%d expected=%d, actual=%d", __FILE__, __LINE__, strlen(badString), endIdx); ++ return; ++ } ++ ++ for (int32_t prevIndex = endIdx; prevIndex>0;) { ++ UChar32 c = utext_previous32(ut.getAlias()); ++ int32_t currentIndex = utext_getNativeIndex(ut.getAlias()); ++ if (c != 0xfffd) { ++ errln("%s:%d (expected, actual, index) = (%d, %d, %d)\n", ++ __FILE__, __LINE__, 0xfffd, c, currentIndex); ++ break; ++ } ++ if (currentIndex != prevIndex - 6) { ++ errln("%s:%d: wrong index. Expected, actual = %d, %d", ++ __FILE__, __LINE__, prevIndex - 6, currentIndex); ++ break; ++ } ++ prevIndex = currentIndex; ++ } ++} +Index: /trunk/icu4c/source/test/intltest/utxttest.h +=================================================================== +--- icu.orig/source/test/intltest/utxttest.h ++++ icu/source/test/intltest/utxttest.h +@@ -39,4 +39,5 @@ + void Ticket10983(); + void Ticket12130(); ++ void Ticket12888(); + + private: