diff options
Diffstat (limited to 'meta/recipes-support/libexif/files/CVE-2020-0198.patch')
| -rw-r--r-- | meta/recipes-support/libexif/files/CVE-2020-0198.patch | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/meta/recipes-support/libexif/files/CVE-2020-0198.patch b/meta/recipes-support/libexif/files/CVE-2020-0198.patch deleted file mode 100644 index 2a48844cb2..0000000000 --- a/meta/recipes-support/libexif/files/CVE-2020-0198.patch +++ /dev/null @@ -1,66 +0,0 @@ -From ca71eda33fe8421f98fbe20eb4392473357c1c43 Mon Sep 17 00:00:00 2001 -From: Changqing Li <changqing.li@windriver.com> -Date: Wed, 30 Dec 2020 10:22:47 +0800 -Subject: [PATCH] fixed another unsigned integer overflow - -first fixed by google in android fork, -https://android.googlesource.com/platform/external/libexif/+/1e187b62682ffab5003c702657d6d725b4278f16%5E%21/#F0 - -(use a more generic overflow check method, also check second overflow instance.) - -https://security-tracker.debian.org/tracker/CVE-2020-0198 - -Upstream-Status: Backport[https://github.com/libexif/libexif/commit/ce03ad7ef4e8aeefce79192bf5b6f69fae396f0c] -CVE: CVE-2020-0198 - -Signed-off-by: Changqing Li <changqing.li@windriver.com> ---- - libexif/exif-data.c | 10 ++++++---- - 1 file changed, 6 insertions(+), 4 deletions(-) - -diff --git a/libexif/exif-data.c b/libexif/exif-data.c -index 8b280d3..34d58fc 100644 ---- a/libexif/exif-data.c -+++ b/libexif/exif-data.c -@@ -47,6 +47,8 @@ - #undef JPEG_MARKER_APP1 - #define JPEG_MARKER_APP1 0xe1 - -+#define CHECKOVERFLOW(offset,datasize,structsize) (( offset >= datasize) || (structsize > datasize) || (offset > datasize - structsize )) -+ - static const unsigned char ExifHeader[] = {0x45, 0x78, 0x69, 0x66, 0x00, 0x00}; - - struct _ExifDataPrivate -@@ -327,7 +329,7 @@ exif_data_load_data_thumbnail (ExifData *data, const unsigned char *d, - exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData", "Bogus thumbnail offset (%u).", o); - return; - } -- if (s > ds - o) { -+ if (CHECKOVERFLOW(o,ds,s)) { - exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData", "Bogus thumbnail size (%u), max would be %u.", s, ds-o); - return; - } -@@ -420,9 +422,9 @@ exif_data_load_data_content (ExifData *data, ExifIfd ifd, - } - - /* Read the number of entries */ -- if ((offset + 2 < offset) || (offset + 2 < 2) || (offset + 2 > ds)) { -+ if (CHECKOVERFLOW(offset, ds, 2)) { - exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA, "ExifData", -- "Tag data past end of buffer (%u > %u)", offset+2, ds); -+ "Tag data past end of buffer (%u+2 > %u)", offset, ds); - return; - } - n = exif_get_short (d + offset, data->priv->order); -@@ -431,7 +433,7 @@ exif_data_load_data_content (ExifData *data, ExifIfd ifd, - offset += 2; - - /* Check if we have enough data. */ -- if (offset + 12 * n > ds) { -+ if (CHECKOVERFLOW(offset, ds, 12*n)) { - n = (ds - offset) / 12; - exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData", - "Short data; only loading %hu entries...", n); --- -2.17.1 - |