![Peter Korsgaard](/assets/img/avatar_default.png)
Fixes the following security issues: CVE-2018-10536: An issue was discovered in WavPack 5.1.0 and earlier. The WAV parser component contains a vulnerability that allows writing to memory because ParseRiffHeaderConfig in riff.c does not reject multiple format chunks. CVE-2018-10537: An issue was discovered in WavPack 5.1.0 and earlier. The W64 parser component contains a vulnerability that allows writing to memory because ParseWave64HeaderConfig in wave64.c does not reject multiple format chunks. CVE-2018-10538: An issue was discovered in WavPack 5.1.0 and earlier for WAV input. Out-of-bounds writes can occur because ParseRiffHeaderConfig in riff.c does not validate the sizes of unknown chunks before attempting memory allocation, related to a lack of integer-overflow protection within a bytes_to_copy calculation and subsequent malloc call, leading to insufficient memory allocation. CVE-2018-10539: An issue was discovered in WavPack 5.1.0 and earlier for DSDiff input. Out-of-bounds writes can occur because ParseDsdiffHeaderConfig in dsdiff.c does not validate the sizes of unknown chunks before attempting memory allocation, related to a lack of integer-overflow protection within a bytes_to_copy calculation and subsequent malloc call, leading to insufficient memory allocation. CVE-2018-10540: An issue was discovered in WavPack 5.1.0 and earlier for W64 input. Out-of-bounds writes can occur because ParseWave64HeaderConfig in wave64.c does not validate the sizes of unknown chunks before attempting memory allocation, related to a lack of integer-overflow protection within a bytes_to_copy calculation and subsequent malloc call, leading to insufficient memory allocation. Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
76 lines
2.7 KiB
Diff
76 lines
2.7 KiB
Diff
From 6f8bb34c2993a48ab9afbe353e6d0cff7c8d821d Mon Sep 17 00:00:00 2001
|
|
From: David Bryant <david@wavpack.com>
|
|
Date: Tue, 24 Apr 2018 17:27:01 -0700
|
|
Subject: [PATCH] issue #33, sanitize size of unknown chunks before malloc()
|
|
|
|
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
|
|
---
|
|
cli/dsdiff.c | 9 ++++++++-
|
|
cli/riff.c | 9 ++++++++-
|
|
cli/wave64.c | 9 ++++++++-
|
|
3 files changed, 24 insertions(+), 3 deletions(-)
|
|
|
|
diff --git a/cli/dsdiff.c b/cli/dsdiff.c
|
|
index c016df9..fa56bbb 100644
|
|
--- a/cli/dsdiff.c
|
|
+++ b/cli/dsdiff.c
|
|
@@ -279,7 +279,14 @@ int ParseDsdiffHeaderConfig (FILE *infile, char *infilename, char *fourcc, Wavpa
|
|
else { // just copy unknown chunks to output file
|
|
|
|
int bytes_to_copy = (int)(((dff_chunk_header.ckDataSize) + 1) & ~(int64_t)1);
|
|
- char *buff = malloc (bytes_to_copy);
|
|
+ char *buff;
|
|
+
|
|
+ if (bytes_to_copy < 0 || bytes_to_copy > 4194304) {
|
|
+ error_line ("%s is not a valid .DFF file!", infilename);
|
|
+ return WAVPACK_SOFT_ERROR;
|
|
+ }
|
|
+
|
|
+ buff = malloc (bytes_to_copy);
|
|
|
|
if (debug_logging_mode)
|
|
error_line ("extra unknown chunk \"%c%c%c%c\" of %d bytes",
|
|
diff --git a/cli/riff.c b/cli/riff.c
|
|
index de98c1e..7bddf63 100644
|
|
--- a/cli/riff.c
|
|
+++ b/cli/riff.c
|
|
@@ -286,7 +286,14 @@ int ParseRiffHeaderConfig (FILE *infile, char *infilename, char *fourcc, Wavpack
|
|
else { // just copy unknown chunks to output file
|
|
|
|
int bytes_to_copy = (chunk_header.ckSize + 1) & ~1L;
|
|
- char *buff = malloc (bytes_to_copy);
|
|
+ char *buff;
|
|
+
|
|
+ if (bytes_to_copy < 0 || bytes_to_copy > 4194304) {
|
|
+ error_line ("%s is not a valid .WAV file!", infilename);
|
|
+ return WAVPACK_SOFT_ERROR;
|
|
+ }
|
|
+
|
|
+ buff = malloc (bytes_to_copy);
|
|
|
|
if (debug_logging_mode)
|
|
error_line ("extra unknown chunk \"%c%c%c%c\" of %d bytes",
|
|
diff --git a/cli/wave64.c b/cli/wave64.c
|
|
index 591d640..fa928a0 100644
|
|
--- a/cli/wave64.c
|
|
+++ b/cli/wave64.c
|
|
@@ -241,7 +241,14 @@ int ParseWave64HeaderConfig (FILE *infile, char *infilename, char *fourcc, Wavpa
|
|
}
|
|
else { // just copy unknown chunks to output file
|
|
int bytes_to_copy = (chunk_header.ckSize + 7) & ~7L;
|
|
- char *buff = malloc (bytes_to_copy);
|
|
+ char *buff;
|
|
+
|
|
+ if (bytes_to_copy < 0 || bytes_to_copy > 4194304) {
|
|
+ error_line ("%s is not a valid .W64 file!", infilename);
|
|
+ return WAVPACK_SOFT_ERROR;
|
|
+ }
|
|
+
|
|
+ buff = malloc (bytes_to_copy);
|
|
|
|
if (debug_logging_mode)
|
|
error_line ("extra unknown chunk \"%c%c%c%c\" of %d bytes",
|
|
--
|
|
2.11.0
|
|
|