diff options
Diffstat (limited to 'libs/tiff/patches/102-CVE.patch')
| -rw-r--r-- | libs/tiff/patches/102-CVE.patch | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/libs/tiff/patches/102-CVE.patch b/libs/tiff/patches/102-CVE.patch deleted file mode 100644 index 60b559c02..000000000 --- a/libs/tiff/patches/102-CVE.patch +++ /dev/null @@ -1,131 +0,0 @@ -commit da99990ba6e1203798a59eb836fc6433ed6e3d66 -Author: erouault <erouault> -Date: Fri Dec 2 23:05:51 2016 +0000 - - * libtiff/tif_pixarlog.c, libtiff/tif_luv.c: fix heap-based buffer - overflow on generation of PixarLog / LUV compressed files, with - ColorMap, TransferFunction attached and nasty plays with bitspersample. - The fix for LUV has not been tested, but suffers from the same kind - of issue of PixarLog. - Reported by Agostino Sarubbo. - Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2604 - -diff --git a/ChangeLog b/ChangeLog -index 0f154d6..93c01f8 100644 ---- a/ChangeLog -+++ b/ChangeLog -@@ -1,3 +1,13 @@ -+2016-12-03 Even Rouault <even.rouault at spatialys.com> -+ -+ * libtiff/tif_pixarlog.c, libtiff/tif_luv.c: fix heap-based buffer -+ overflow on generation of PixarLog / LUV compressed files, with -+ ColorMap, TransferFunction attached and nasty plays with bitspersample. -+ The fix for LUV has not been tested, but suffers from the same kind -+ of issue of PixarLog. -+ Reported by Agostino Sarubbo. -+ Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2604 -+ - 2016-12-02 Even Rouault <even.rouault at spatialys.com> - - * tools/tiffcp.c: avoid uint32 underflow in cpDecodedStrips that -diff --git a/libtiff/tif_luv.c b/libtiff/tif_luv.c -index ca08f30..f42ac01 100644 ---- a/libtiff/tif_luv.c -+++ b/libtiff/tif_luv.c -@@ -1,4 +1,4 @@ --/* $Id: tif_luv.c,v 1.43 2016-09-04 21:32:56 erouault Exp $ */ -+/* $Id: tif_luv.c,v 1.44 2016-12-02 23:05:51 erouault Exp $ */ - - /* - * Copyright (c) 1997 Greg Ward Larson -@@ -158,6 +158,7 @@ - typedef struct logLuvState LogLuvState; - - struct logLuvState { -+ int encoder_state; /* 1 if encoder correctly initialized */ - int user_datafmt; /* user data format */ - int encode_meth; /* encoding method */ - int pixel_size; /* bytes per pixel */ -@@ -1552,6 +1553,7 @@ LogLuvSetupEncode(TIFF* tif) - td->td_photometric, "must be either LogLUV or LogL"); - break; - } -+ sp->encoder_state = 1; - return (1); - notsupported: - TIFFErrorExt(tif->tif_clientdata, module, -@@ -1563,19 +1565,27 @@ notsupported: - static void - LogLuvClose(TIFF* tif) - { -+ LogLuvState* sp = (LogLuvState*) tif->tif_data; - TIFFDirectory *td = &tif->tif_dir; - -+ assert(sp != 0); - /* - * For consistency, we always want to write out the same - * bitspersample and sampleformat for our TIFF file, - * regardless of the data format being used by the application. - * Since this routine is called after tags have been set but - * before they have been recorded in the file, we reset them here. -+ * Note: this is really a nasty approach. See PixarLogClose - */ -- td->td_samplesperpixel = -- (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3; -- td->td_bitspersample = 16; -- td->td_sampleformat = SAMPLEFORMAT_INT; -+ if( sp->encoder_state ) -+ { -+ /* See PixarLogClose. Might avoid issues with tags whose size depends -+ * on those below, but not completely sure this is enough. */ -+ td->td_samplesperpixel = -+ (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3; -+ td->td_bitspersample = 16; -+ td->td_sampleformat = SAMPLEFORMAT_INT; -+ } - } - - static void -diff --git a/libtiff/tif_pixarlog.c b/libtiff/tif_pixarlog.c -index f4af2ba..9836dce 100644 ---- a/libtiff/tif_pixarlog.c -+++ b/libtiff/tif_pixarlog.c -@@ -1,4 +1,4 @@ --/* $Id: tif_pixarlog.c,v 1.48 2016-09-23 22:12:18 erouault Exp $ */ -+/* $Id: tif_pixarlog.c,v 1.49 2016-12-02 23:05:51 erouault Exp $ */ - - /* - * Copyright (c) 1996-1997 Sam Leffler -@@ -1233,8 +1233,10 @@ PixarLogPostEncode(TIFF* tif) - static void - PixarLogClose(TIFF* tif) - { -+ PixarLogState* sp = (PixarLogState*) tif->tif_data; - TIFFDirectory *td = &tif->tif_dir; - -+ assert(sp != 0); - /* In a really sneaky (and really incorrect, and untruthful, and - * troublesome, and error-prone) maneuver that completely goes against - * the spirit of TIFF, and breaks TIFF, on close, we covertly -@@ -1243,8 +1245,19 @@ PixarLogClose(TIFF* tif) - * readers that don't know about PixarLog, or how to set - * the PIXARLOGDATFMT pseudo-tag. - */ -- td->td_bitspersample = 8; -- td->td_sampleformat = SAMPLEFORMAT_UINT; -+ -+ if (sp->state&PLSTATE_INIT) { -+ /* We test the state to avoid an issue such as in -+ * http://bugzilla.maptools.org/show_bug.cgi?id=2604 -+ * What appends in that case is that the bitspersample is 1 and -+ * a TransferFunction is set. The size of the TransferFunction -+ * depends on 1<<bitspersample. So if we increase it, an access -+ * out of the buffer will happen at directory flushing. -+ * Another option would be to clear those targs. -+ */ -+ td->td_bitspersample = 8; -+ td->td_sampleformat = SAMPLEFORMAT_UINT; -+ } - } - - static void |