diff options
Diffstat (limited to 'pkgs/development/libraries/expat/CVE-2015-1283.patch')
-rw-r--r-- | pkgs/development/libraries/expat/CVE-2015-1283.patch | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/pkgs/development/libraries/expat/CVE-2015-1283.patch b/pkgs/development/libraries/expat/CVE-2015-1283.patch new file mode 100644 index 00000000000..33b975912d4 --- /dev/null +++ b/pkgs/development/libraries/expat/CVE-2015-1283.patch @@ -0,0 +1,77 @@ +Found at https://hg.mozilla.org/releases/mozilla-esr31/rev/2f3e78643f5c on 2015-07-27. Modified: replaced path parser/expat/lib/xmlparse.c with lib/xmlparse.c. +diff --git a/lib/xmlparse.c b/lib/xmlparse.c +--- a/lib/xmlparse.c ++++ b/lib/xmlparse.c +@@ -1646,29 +1646,40 @@ XML_ParseBuffer(XML_Parser parser, int l + XmlUpdatePosition(encoding, positionPtr, bufferPtr, &position); + positionPtr = bufferPtr; + return result; + } + + void * XMLCALL + XML_GetBuffer(XML_Parser parser, int len) + { ++/* BEGIN MOZILLA CHANGE (sanity check len) */ ++ if (len < 0) { ++ errorCode = XML_ERROR_NO_MEMORY; ++ return NULL; ++ } ++/* END MOZILLA CHANGE */ + switch (ps_parsing) { + case XML_SUSPENDED: + errorCode = XML_ERROR_SUSPENDED; + return NULL; + case XML_FINISHED: + errorCode = XML_ERROR_FINISHED; + return NULL; + default: ; + } + + if (len > bufferLim - bufferEnd) { +- /* FIXME avoid integer overflow */ + int neededSize = len + (int)(bufferEnd - bufferPtr); ++/* BEGIN MOZILLA CHANGE (sanity check neededSize) */ ++ if (neededSize < 0) { ++ errorCode = XML_ERROR_NO_MEMORY; ++ return NULL; ++ } ++/* END MOZILLA CHANGE */ + #ifdef XML_CONTEXT_BYTES + int keep = (int)(bufferPtr - buffer); + + if (keep > XML_CONTEXT_BYTES) + keep = XML_CONTEXT_BYTES; + neededSize += keep; + #endif /* defined XML_CONTEXT_BYTES */ + if (neededSize <= bufferLim - buffer) { +@@ -1687,17 +1698,25 @@ XML_GetBuffer(XML_Parser parser, int len + } + else { + char *newBuf; + int bufferSize = (int)(bufferLim - bufferPtr); + if (bufferSize == 0) + bufferSize = INIT_BUFFER_SIZE; + do { + bufferSize *= 2; +- } while (bufferSize < neededSize); ++/* BEGIN MOZILLA CHANGE (prevent infinite loop on overflow) */ ++ } while (bufferSize < neededSize && bufferSize > 0); ++/* END MOZILLA CHANGE */ ++/* BEGIN MOZILLA CHANGE (sanity check bufferSize) */ ++ if (bufferSize <= 0) { ++ errorCode = XML_ERROR_NO_MEMORY; ++ return NULL; ++ } ++/* END MOZILLA CHANGE */ + newBuf = (char *)MALLOC(bufferSize); + if (newBuf == 0) { + errorCode = XML_ERROR_NO_MEMORY; + return NULL; + } + bufferLim = newBuf + bufferSize; + #ifdef XML_CONTEXT_BYTES + if (bufferPtr) { + + + + |