diff options
Diffstat (limited to 'media-sound/wavpack/files/wavpack-5.1.0-CVE-2018-6767.patch')
| -rw-r--r-- | media-sound/wavpack/files/wavpack-5.1.0-CVE-2018-6767.patch | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/media-sound/wavpack/files/wavpack-5.1.0-CVE-2018-6767.patch b/media-sound/wavpack/files/wavpack-5.1.0-CVE-2018-6767.patch new file mode 100644 index 000000000000..aa2cdd40fb62 --- /dev/null +++ b/media-sound/wavpack/files/wavpack-5.1.0-CVE-2018-6767.patch @@ -0,0 +1,111 @@ +From: David Bryant <david@wavpack.com> +Date: Sun, 4 Feb 2018 11:28:15 -0800 +Subject: issue #27, do not overwrite stack on corrupt RF64 file + +--- + cli/riff.c | 39 ++++++++++++++++++++++++++++++++------- + 1 file changed, 32 insertions(+), 7 deletions(-) + +diff --git a/cli/riff.c b/cli/riff.c +index 8b1af45..de98c1e 100644 +--- a/cli/riff.c ++++ b/cli/riff.c +@@ -42,6 +42,7 @@ typedef struct { + + #pragma pack(pop) + ++#define CS64ChunkFormat "4D" + #define DS64ChunkFormat "DDDL" + + #define WAVPACK_NO_ERROR 0 +@@ -101,13 +102,13 @@ int ParseRiffHeaderConfig (FILE *infile, char *infilename, char *fourcc, Wavpack + + if (!strncmp (chunk_header.ckID, "ds64", 4)) { + if (chunk_header.ckSize < sizeof (DS64Chunk) || +- !DoReadFile (infile, &ds64_chunk, chunk_header.ckSize, &bcount) || +- bcount != chunk_header.ckSize) { ++ !DoReadFile (infile, &ds64_chunk, sizeof (DS64Chunk), &bcount) || ++ bcount != sizeof (DS64Chunk)) { + error_line ("%s is not a valid .WAV file!", infilename); + return WAVPACK_SOFT_ERROR; + } + else if (!(config->qmode & QMODE_NO_STORE_WRAPPER) && +- !WavpackAddWrapper (wpc, &ds64_chunk, chunk_header.ckSize)) { ++ !WavpackAddWrapper (wpc, &ds64_chunk, sizeof (DS64Chunk))) { + error_line ("%s", WavpackGetErrorMessage (wpc)); + return WAVPACK_SOFT_ERROR; + } +@@ -315,10 +316,11 @@ int ParseRiffHeaderConfig (FILE *infile, char *infilename, char *fourcc, Wavpack + + int WriteRiffHeader (FILE *outfile, WavpackContext *wpc, int64_t total_samples, int qmode) + { +- int do_rf64 = 0, write_junk = 1; ++ int do_rf64 = 0, write_junk = 1, table_length = 0; + ChunkHeader ds64hdr, datahdr, fmthdr; + RiffChunkHeader riffhdr; + DS64Chunk ds64_chunk; ++ CS64Chunk cs64_chunk; + JunkChunk junkchunk; + WaveHeader wavhdr; + uint32_t bcount; +@@ -380,6 +382,7 @@ int WriteRiffHeader (FILE *outfile, WavpackContext *wpc, int64_t total_samples, + strncpy (riffhdr.formType, "WAVE", sizeof (riffhdr.formType)); + total_riff_bytes = sizeof (riffhdr) + wavhdrsize + sizeof (datahdr) + ((total_data_bytes + 1) & ~(int64_t)1); + if (do_rf64) total_riff_bytes += sizeof (ds64hdr) + sizeof (ds64_chunk); ++ total_riff_bytes += table_length * sizeof (CS64Chunk); + if (write_junk) total_riff_bytes += sizeof (junkchunk); + strncpy (fmthdr.ckID, "fmt ", sizeof (fmthdr.ckID)); + strncpy (datahdr.ckID, "data", sizeof (datahdr.ckID)); +@@ -394,11 +397,12 @@ int WriteRiffHeader (FILE *outfile, WavpackContext *wpc, int64_t total_samples, + + if (do_rf64) { + strncpy (ds64hdr.ckID, "ds64", sizeof (ds64hdr.ckID)); +- ds64hdr.ckSize = sizeof (ds64_chunk); ++ ds64hdr.ckSize = sizeof (ds64_chunk) + (table_length * sizeof (CS64Chunk)); + CLEAR (ds64_chunk); + ds64_chunk.riffSize64 = total_riff_bytes; + ds64_chunk.dataSize64 = total_data_bytes; + ds64_chunk.sampleCount64 = total_samples; ++ ds64_chunk.tableLength = table_length; + riffhdr.ckSize = (uint32_t) -1; + datahdr.ckSize = (uint32_t) -1; + WavpackNativeToLittleEndian (&ds64hdr, ChunkHeaderFormat); +@@ -409,6 +413,14 @@ int WriteRiffHeader (FILE *outfile, WavpackContext *wpc, int64_t total_samples, + datahdr.ckSize = (uint32_t) total_data_bytes; + } + ++ // this "table" is just a dummy placeholder for testing (normally not written) ++ ++ if (table_length) { ++ strncpy (cs64_chunk.ckID, "dmmy", sizeof (cs64_chunk.ckID)); ++ cs64_chunk.chunkSize64 = 12345678; ++ WavpackNativeToLittleEndian (&cs64_chunk, CS64ChunkFormat); ++ } ++ + // write the RIFF chunks up to just before the data starts + + WavpackNativeToLittleEndian (&riffhdr, ChunkHeaderFormat); +@@ -418,8 +430,21 @@ int WriteRiffHeader (FILE *outfile, WavpackContext *wpc, int64_t total_samples, + + if (!DoWriteFile (outfile, &riffhdr, sizeof (riffhdr), &bcount) || bcount != sizeof (riffhdr) || + (do_rf64 && (!DoWriteFile (outfile, &ds64hdr, sizeof (ds64hdr), &bcount) || bcount != sizeof (ds64hdr))) || +- (do_rf64 && (!DoWriteFile (outfile, &ds64_chunk, sizeof (ds64_chunk), &bcount) || bcount != sizeof (ds64_chunk))) || +- (write_junk && (!DoWriteFile (outfile, &junkchunk, sizeof (junkchunk), &bcount) || bcount != sizeof (junkchunk))) || ++ (do_rf64 && (!DoWriteFile (outfile, &ds64_chunk, sizeof (ds64_chunk), &bcount) || bcount != sizeof (ds64_chunk)))) { ++ error_line ("can't write .WAV data, disk probably full!"); ++ return FALSE; ++ } ++ ++ // again, this is normally not written except for testing ++ ++ while (table_length--) ++ if (!DoWriteFile (outfile, &cs64_chunk, sizeof (cs64_chunk), &bcount) || bcount != sizeof (cs64_chunk)) { ++ error_line ("can't write .WAV data, disk probably full!"); ++ return FALSE; ++ } ++ ++ ++ if ((write_junk && (!DoWriteFile (outfile, &junkchunk, sizeof (junkchunk), &bcount) || bcount != sizeof (junkchunk))) || + !DoWriteFile (outfile, &fmthdr, sizeof (fmthdr), &bcount) || bcount != sizeof (fmthdr) || + !DoWriteFile (outfile, &wavhdr, wavhdrsize, &bcount) || bcount != wavhdrsize || + !DoWriteFile (outfile, &datahdr, sizeof (datahdr), &bcount) || bcount != sizeof (datahdr)) { |