1 files changed, 0 insertions, 85 deletions
diff --git a/user/libexif/CVE-2019-9278.patch b/user/libexif/CVE-2019-9278.patch
deleted file mode 100644
index bd15e8d13..000000000
--- a/user/libexif/CVE-2019-9278.patch
+++ /dev/null
@@ -1,85 +0,0 @@
-From 75aa73267fdb1e0ebfbc00369e7312bac43d0566 Mon Sep 17 00:00:00 2001
-From: Marcus Meissner <meissner@suse.de>
-Date: Sat, 18 Jan 2020 09:29:42 +0100
-Subject: [PATCH] fix CVE-2019-9278
-
-avoid the use of unsafe integer overflow checking constructs (unsigned integer operations cannot overflow, so "u1 + u2 > u1" can be optimized away)
-
-check for the actual sizes, which should also handle the overflows
-document other places google patched, but do not seem relevant due to other restrictions
-
-fixes https://github.com/libexif/libexif/issues/26
----
- libexif/exif-data.c | 28 ++++++++++++++++++----------
- 1 file changed, 18 insertions(+), 10 deletions(-)
-
-diff --git a/libexif/exif-data.c b/libexif/exif-data.c
-index a6f9c94..6332cd1 100644
---- a/libexif/exif-data.c
-+++ b/libexif/exif-data.c
-@@ -192,9 +192,15 @@ exif_data_load_data_entry (ExifData *data, ExifEntry *entry,
- 		doff = offset + 8;
- 
- 	/* Sanity checks */
--	if ((doff + s < doff) || (doff + s < s) || (doff + s > size)) {
-+	if (doff >= size) {
- 		exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
--				  "Tag data past end of buffer (%u > %u)", doff+s, size);	
-+				  "Tag starts past end of buffer (%u > %u)", doff, size);
-+		return 0;
-+	}
-+
-+	if (s > size - doff) {
-+		exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
-+				  "Tag data goes past end of buffer (%u > %u)", doff+s, size);
- 		return 0;
- 	}
- 
-@@ -315,13 +321,14 @@ exif_data_load_data_thumbnail (ExifData *data, const unsigned char *d,
- 			       unsigned int ds, ExifLong o, ExifLong s)
- {
- 	/* Sanity checks */
--	if ((o + s < o) || (o + s < s) || (o + s > ds) || (o > ds)) {
--		exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
--			  "Bogus thumbnail offset (%u) or size (%u).",
--			  o, s);
-+	if (o >= ds) {
-+		exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData", "Bogus thumbnail offset (%u).", o);
-+		return;
-+	}
-+	if (s > ds - o) {
-+		exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData", "Bogus thumbnail size (%u), max would be %u.", s, ds-o);
- 		return;
- 	}
--
- 	if (data->data) 
- 		exif_mem_free (data->priv->mem, data->data);
- 	if (!(data->data = exif_data_alloc (data, s))) {
-@@ -947,7 +954,7 @@ exif_data_load_data (ExifData *data, const unsigned char *d_orig,
- 	exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData", 
- 		  "IFD 0 at %i.", (int) offset);
- 
--	/* Sanity check the offset, being careful about overflow */
-+	/* ds is restricted to 16 bit above, so offset is restricted too, and offset+8 should not overflow. */
- 	if (offset > ds || offset + 6 + 2 > ds)
- 		return;
- 
-@@ -956,6 +963,7 @@ exif_data_load_data (ExifData *data, const unsigned char *d_orig,
- 
- 	/* IFD 1 offset */
- 	n = exif_get_short (d + 6 + offset, data->priv->order);
-+	/* offset < 2<<16, n is 16 bit at most, so this op will not overflow */
- 	if (offset + 6 + 2 + 12 * n + 4 > ds)
- 		return;
- 
-@@ -964,8 +972,8 @@ exif_data_load_data (ExifData *data, const unsigned char *d_orig,
- 		exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
- 			  "IFD 1 at %i.", (int) offset);
- 
--		/* Sanity check. */
--		if (offset > ds || offset + 6 > ds) {
-+		/* Sanity check. ds is ensured to be above 6 above, offset is 16bit */
-+		if (offset > ds - 6) {
- 			exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
- 				  "ExifData", "Bogus offset of IFD1.");
- 		} else {