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authorArmin Kuster <akuster@mvista.com>2016-08-10 15:11:17 +0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-09-23 15:25:54 +0100
commita1839427c5626367beb6bf59d900904dedb6bf03 (patch)
tree0d8e656f33fe56355e5697a98524668afc84e7e1 /meta/recipes-multimedia/libtiff/files
parent18d8f81c16cbf165183f5deda71fef0763386a21 (diff)
downloadopenembedded-core-a1839427c5626367beb6bf59d900904dedb6bf03.tar.gz
openembedded-core-a1839427c5626367beb6bf59d900904dedb6bf03.tar.bz2
openembedded-core-a1839427c5626367beb6bf59d900904dedb6bf03.zip
tiff: Security fix CVE-2015-8784
CVE-2015-8784 libtiff: out-of-bound write in NeXTDecode() External Reference: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8784 (From OE-Core rev: 36097da9679ab2ce3c4044cd8ed64e5577e3f63e) Signed-off-by: Armin Kuster <akuster@mvista.com> Signed-off-by: Yi Zhao <yi.zhao@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster808@gmail.com>
Diffstat (limited to 'meta/recipes-multimedia/libtiff/files')
-rw-r--r--meta/recipes-multimedia/libtiff/files/CVE-2015-8784.patch73
1 files changed, 73 insertions, 0 deletions
diff --git a/meta/recipes-multimedia/libtiff/files/CVE-2015-8784.patch b/meta/recipes-multimedia/libtiff/files/CVE-2015-8784.patch
new file mode 100644
index 0000000000..0caf800e23
--- /dev/null
+++ b/meta/recipes-multimedia/libtiff/files/CVE-2015-8784.patch
@@ -0,0 +1,73 @@
+From b18012dae552f85dcc5c57d3bf4e997a15b1cc1c Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sun, 27 Dec 2015 16:55:20 +0000
+Subject: [PATCH] * libtiff/tif_next.c: fix potential out-of-bound write in
+ NeXTDecode() triggered by http://lcamtuf.coredump.cx/afl/vulns/libtiff5.tif
+ (bugzilla #2508)
+
+Upstream-Status: Backport
+https://github.com/vadz/libtiff/commit/b18012dae552f85dcc5c57d3bf4e997a15b1cc1c
+hand applied Changelog changes
+
+CVE: CVE-2015-8784
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ ChangeLog | 6 ++++++
+ libtiff/tif_next.c | 10 ++++++++--
+ 2 files changed, 14 insertions(+), 2 deletions(-)
+
+Index: tiff-4.0.4/ChangeLog
+===================================================================
+--- tiff-4.0.4.orig/ChangeLog
++++ tiff-4.0.4/ChangeLog
+@@ -1,5 +1,11 @@
+ 2015-12-27 Even Rouault <even.rouault at spatialys.com>
+
++ * libtiff/tif_next.c: fix potential out-of-bound write in NeXTDecode()
++ triggered by http://lcamtuf.coredump.cx/afl/vulns/libtiff5.tif
++ (bugzilla #2508)
++
++2015-12-27 Even Rouault <even.rouault at spatialys.com>
++
+ * libtiff/tif_luv.c: fix potential out-of-bound writes in decode
+ functions in non debug builds by replacing assert()s by regular if
+ checks (bugzilla #2522).
+Index: tiff-4.0.4/libtiff/tif_next.c
+===================================================================
+--- tiff-4.0.4.orig/libtiff/tif_next.c
++++ tiff-4.0.4/libtiff/tif_next.c
+@@ -37,7 +37,7 @@
+ case 0: op[0] = (unsigned char) ((v) << 6); break; \
+ case 1: op[0] |= (v) << 4; break; \
+ case 2: op[0] |= (v) << 2; break; \
+- case 3: *op++ |= (v); break; \
++ case 3: *op++ |= (v); op_offset++; break; \
+ } \
+ }
+
+@@ -106,6 +106,7 @@ NeXTDecode(TIFF* tif, uint8* buf, tmsize
+ uint32 imagewidth = tif->tif_dir.td_imagewidth;
+ if( isTiled(tif) )
+ imagewidth = tif->tif_dir.td_tilewidth;
++ tmsize_t op_offset = 0;
+
+ /*
+ * The scanline is composed of a sequence of constant
+@@ -122,10 +123,15 @@ NeXTDecode(TIFF* tif, uint8* buf, tmsize
+ * bounds, potentially resulting in a security
+ * issue.
+ */
+- while (n-- > 0 && npixels < imagewidth)
++ while (n-- > 0 && npixels < imagewidth && op_offset < scanline)
+ SETPIXEL(op, grey);
+ if (npixels >= imagewidth)
+ break;
++ if (op_offset >= scanline ) {
++ TIFFErrorExt(tif->tif_clientdata, module, "Invalid data for scanline %ld",
++ (long) tif->tif_row);
++ return (0);
++ }
+ if (cc == 0)
+ goto bad;
+ n = *bp++, cc--;