From: Armin Kuster <akus...@mvista.com> CVE-2015-8784 libtiff: out-of-bound write in NeXTDecode()
Signed-off-by: Armin Kuster <akus...@mvista.com> --- .../libtiff/files/CVE-2015-8784.patch | 73 ++++++++++++++++++++++ meta/recipes-multimedia/libtiff/tiff_4.0.4.bb | 1 + 2 files changed, 74 insertions(+) create mode 100644 meta/recipes-multimedia/libtiff/files/CVE-2015-8784.patch 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 0000000..cf37fd3 --- /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 <akus...@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--; diff --git a/meta/recipes-multimedia/libtiff/tiff_4.0.4.bb b/meta/recipes-multimedia/libtiff/tiff_4.0.4.bb index 6166663..f1f5a7e 100644 --- a/meta/recipes-multimedia/libtiff/tiff_4.0.4.bb +++ b/meta/recipes-multimedia/libtiff/tiff_4.0.4.bb @@ -6,6 +6,7 @@ HOMEPAGE = "http://www.remotesensing.org/libtiff/"; SRC_URI = "ftp://ftp.remotesensing.org/pub/libtiff/tiff-${PV}.tar.gz \ file://libtool2.patch \ file://CVE-2015-8781.patch \ + file://CVE-2015-8784.patch \ " SRC_URI[md5sum] = "9aee7107408a128c0c7b24286c0db900" -- 2.3.5 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
