gnu: openjpeg-2.x: Add fix for CVE-2015-6581.

* gnu/packages/patches/openjpeg-CVE-2015-6581.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/image.scm (openjpeg, openjpeg-2.0)[source]: Add patch.

1 files changed, 47 insertions, 0 deletions

diff --git a/gnu/packages/patches/openjpeg-CVE-2015-6581.patch b/gnu/packages/patches/openjpeg-CVE-2015-6581.patch
new file mode 100644
index 0000000000..7ce03501f4
--- /dev/null
+++ b/gnu/packages/patches/openjpeg-CVE-2015-6581.patch
@@ -0,0 +1,47 @@
+From 0fa5a17c98c4b8f9ee2286f4f0a50cf52a5fccb0 Mon Sep 17 00:00:00 2001
+From: Matthieu Darbois <mayeut@users.noreply.github.com>
+Date: Tue, 19 May 2015 21:57:27 +0000
+Subject: [PATCH] [trunk] Correct potential double free on malloc failure in
+ opj_j2k_copy_default_tcp_and_create_tcp (fixes issue 492)
+
+---
+ src/lib/openjp2/j2k.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/src/lib/openjp2/j2k.c b/src/lib/openjp2/j2k.c
+index 8c62a39..cbdd368 100644
+--- a/src/lib/openjp2/j2k.c
++++ b/src/lib/openjp2/j2k.c
+@@ -7365,6 +7365,12 @@ static OPJ_BOOL opj_j2k_copy_default_tcp_and_create_tcd (       opj_j2k_t * p_j2
+                 l_tcp->cod = 0;
+                 l_tcp->ppt = 0;
+                 l_tcp->ppt_data = 00;
++                /* Remove memory not owned by this tile in case of early error return. */
++                l_tcp->m_mct_decoding_matrix = 00;
++                l_tcp->m_nb_max_mct_records = 0;
++                l_tcp->m_mct_records = 00;
++                l_tcp->m_nb_max_mcc_records = 0;
++                l_tcp->m_mcc_records = 00;
+                 /* Reconnect the tile-compo coding parameters pointer to the current tile coding parameters*/
+                 l_tcp->tccps = l_current_tccp;
+ 
+@@ -7402,6 +7408,8 @@ static OPJ_BOOL opj_j2k_copy_default_tcp_and_create_tcd (       opj_j2k_t * p_j2
+ 
+                         ++l_src_mct_rec;
+                         ++l_dest_mct_rec;
++                        /* Update with each pass to free exactly what has been allocated on early return. */
++                        l_tcp->m_nb_max_mct_records += 1;
+                 }
+ 
+                 /* Get the mcc_record of the dflt_tile_cp and copy them into the current tile cp*/
+@@ -7411,6 +7419,7 @@ static OPJ_BOOL opj_j2k_copy_default_tcp_and_create_tcd (       opj_j2k_t * p_j2
+                         return OPJ_FALSE;
+                 }
+                 memcpy(l_tcp->m_mcc_records,l_default_tcp->m_mcc_records,l_mcc_records_size);
++                l_tcp->m_nb_max_mcc_records = l_default_tcp->m_nb_max_mcc_records;
+ 
+                 /* Copy the mcc record data from dflt_tile_cp to the current tile*/
+                 l_src_mcc_rec = l_default_tcp->m_mcc_records;
+-- 
+2.5.0
+