diff options
Diffstat (limited to 'media-libs/exempi/files/exempi-2.4.5-CVE-2018-12648.patch')
| -rw-r--r-- | media-libs/exempi/files/exempi-2.4.5-CVE-2018-12648.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/media-libs/exempi/files/exempi-2.4.5-CVE-2018-12648.patch b/media-libs/exempi/files/exempi-2.4.5-CVE-2018-12648.patch new file mode 100644 index 000000000000..36f0d0734350 --- /dev/null +++ b/media-libs/exempi/files/exempi-2.4.5-CVE-2018-12648.patch @@ -0,0 +1,42 @@ +From 8ed2f034705fd2d032c81383eee8208fd4eee0ac Mon Sep 17 00:00:00 2001 +From: Victor Rodriguez <victor.rodriguez.bahena@intel.com> +Date: Sat, 18 Aug 2018 13:54:55 +0000 +Subject: [PATCH] Issue #9 - Fix null-pointer-dereference (CVE-2018-12648) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +The WEBP::GetLE32 function in +XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a +NULL pointer dereference. + +https://bugs.freedesktop.org/show_bug.cgi?id=106981 +https://gitlab.freedesktop.org/libopenraw/exempi/issues/9 + +Signed-off-by: Victor Rodriguez <victor.rodriguez.bahena@intel.com> +Signed-off-by: Hubert Figuière <hub@figuiere.net> +--- + XMPFiles/source/FormatSupport/WEBP_Support.cpp | 8 +++++--- + 1 file changed, 5 insertions(+), 3 deletions(-) + +diff --git a/XMPFiles/source/FormatSupport/WEBP_Support.cpp b/XMPFiles/source/FormatSupport/WEBP_Support.cpp +index ffaf220..4fe705b 100644 +--- a/XMPFiles/source/FormatSupport/WEBP_Support.cpp ++++ b/XMPFiles/source/FormatSupport/WEBP_Support.cpp +@@ -160,9 +160,11 @@ bool VP8XChunk::xmp() + } + void VP8XChunk::xmp(bool hasXMP) + { +- XMP_Uns32 flags = GetLE32(&this->data[0]); +- flags ^= (-hasXMP ^ flags) & (1 << XMP_FLAG_BIT); +- PutLE32(&this->data[0], flags); ++ if (&this->data[0] != NULL) { ++ XMP_Uns32 flags = GetLE32(&this->data[0]); ++ flags ^= (-hasXMP ^ flags) & (1 << XMP_FLAG_BIT); ++ PutLE32(&this->data[0], flags); ++ } + } + + Container::Container(WEBP_MetaHandler* handler) : Chunk(NULL, handler) +-- +2.18.0 |