diff options
Diffstat (limited to 'poky/meta/recipes-support/libexif')
-rw-r--r-- | poky/meta/recipes-support/libexif/files/CVE-2020-0198.patch | 66 | ||||
-rw-r--r-- | poky/meta/recipes-support/libexif/files/CVE-2020-0452.patch | 39 | ||||
-rw-r--r-- | poky/meta/recipes-support/libexif/libexif_0.6.23.bb (renamed from poky/meta/recipes-support/libexif/libexif_0.6.22.bb) | 6 |
3 files changed, 2 insertions, 109 deletions
diff --git a/poky/meta/recipes-support/libexif/files/CVE-2020-0198.patch b/poky/meta/recipes-support/libexif/files/CVE-2020-0198.patch deleted file mode 100644 index 2a48844cb2..0000000000 --- a/poky/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 - diff --git a/poky/meta/recipes-support/libexif/files/CVE-2020-0452.patch b/poky/meta/recipes-support/libexif/files/CVE-2020-0452.patch deleted file mode 100644 index a117b8b369..0000000000 --- a/poky/meta/recipes-support/libexif/files/CVE-2020-0452.patch +++ /dev/null @@ -1,39 +0,0 @@ -From 302acd49eba0a125b0f20692df6abc6f7f7ca53e Mon Sep 17 00:00:00 2001 -From: Changqing Li <changqing.li@windriver.com> -Date: Wed, 30 Dec 2020 10:18:51 +0800 -Subject: [PATCH] fixed a incorrect overflow check that could be optimized - away. - -inspired by: -https://android.googlesource.com/platform/external/libexif/+/8e7345f3bc0bad06ac369d6cbc1124c8ceaf7d4b - -https://source.android.com/security/bulletin/2020-11-01 - -CVE-2020-0452 - -Upsteam-Status: Backport[https://github.com/libexif/libexif/commit/9266d14b5ca4e29b970fa03272318e5f99386e06] -CVE: CVE-2020-0452 - -Signed-off-by: Changqing Li <changqing.li@windriver.com> ---- - libexif/exif-entry.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/libexif/exif-entry.c b/libexif/exif-entry.c -index 5de215f..3a6ce84 100644 ---- a/libexif/exif-entry.c -+++ b/libexif/exif-entry.c -@@ -1371,8 +1371,8 @@ exif_entry_get_value (ExifEntry *e, char *val, unsigned int maxlen) - { - unsigned char *utf16; - -- /* Sanity check the size to prevent overflow */ -- if (e->size+sizeof(uint16_t)+1 < e->size) break; -+ /* Sanity check the size to prevent overflow. Note EXIF files are 64kb at most. */ -+ if (e->size >= 65536 - sizeof(uint16_t)*2) break; - - /* The tag may not be U+0000-terminated , so make a local - U+0000-terminated copy before converting it */ --- -2.17.1 - diff --git a/poky/meta/recipes-support/libexif/libexif_0.6.22.bb b/poky/meta/recipes-support/libexif/libexif_0.6.23.bb index 9ca96d548c..b33522dfc4 100644 --- a/poky/meta/recipes-support/libexif/libexif_0.6.22.bb +++ b/poky/meta/recipes-support/libexif/libexif_0.6.23.bb @@ -10,12 +10,10 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=243b725d71bb5df4a1e5920b344b86ad" def version_underscore(v): return "_".join(v.split(".")) -SRC_URI = "https://github.com/libexif/libexif/releases/download/libexif-${@version_underscore("${PV}")}-release/libexif-${PV}.tar.xz \ - file://CVE-2020-0198.patch \ - file://CVE-2020-0452.patch \ +SRC_URI = "https://github.com/libexif/libexif/releases/download/v${PV}/libexif-${PV}.tar.xz \ " -SRC_URI[sha256sum] = "5048f1c8fc509cc636c2f97f4b40c293338b6041a5652082d5ee2cf54b530c56" +SRC_URI[sha256sum] = "a740a99920eb81ae0aa802bb46e683ce6e0cde061c210f5d5bde5b8572380431" UPSTREAM_CHECK_URI = "https://github.com/libexif/libexif/releases/" |