diff options
Diffstat (limited to 'graphics/tiff/patches/patch-libtiff_tif_luv.c')
| -rw-r--r-- | graphics/tiff/patches/patch-libtiff_tif_luv.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/graphics/tiff/patches/patch-libtiff_tif_luv.c b/graphics/tiff/patches/patch-libtiff_tif_luv.c deleted file mode 100644 index c891fc231b7..00000000000 --- a/graphics/tiff/patches/patch-libtiff_tif_luv.c +++ /dev/null @@ -1,162 +0,0 @@ -$NetBSD: patch-libtiff_tif_luv.c,v 1.1 2016/03/22 21:50:13 tez Exp $ - -Fix for CVE-2015-8781, CVE-2015-8782, CVE-2015-8783 from: - https://github.com/vadz/libtiff/commit/aaab5c3c9d2a2c6984f23ccbc79702610439bc65.diff - ---- libtiff/tif_luv.c.orig -+++ libtiff/tif_luv.c -@@ -202,7 +202,11 @@ LogL16Decode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) - if (sp->user_datafmt == SGILOGDATAFMT_16BIT) - tp = (int16*) op; - else { -- assert(sp->tbuflen >= npixels); -+ if(sp->tbuflen < npixels) { -+ TIFFErrorExt(tif->tif_clientdata, module, -+ "Translation buffer too short"); -+ return (0); -+ } - tp = (int16*) sp->tbuf; - } - _TIFFmemset((void*) tp, 0, npixels*sizeof (tp[0])); -@@ -211,9 +215,11 @@ LogL16Decode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) - cc = tif->tif_rawcc; - /* get each byte string */ - for (shft = 2*8; (shft -= 8) >= 0; ) { -- for (i = 0; i < npixels && cc > 0; ) -+ for (i = 0; i < npixels && cc > 0; ) { - if (*bp >= 128) { /* run */ -- rc = *bp++ + (2-128); /* TODO: potential input buffer overrun when decoding corrupt or truncated data */ -+ if( cc < 2 ) -+ break; -+ rc = *bp++ + (2-128); - b = (int16)(*bp++ << shft); - cc -= 2; - while (rc-- && i < npixels) -@@ -223,6 +229,7 @@ LogL16Decode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) - while (--cc && rc-- && i < npixels) - tp[i++] |= (int16)*bp++ << shft; - } -+ } - if (i != npixels) { - #if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, -@@ -268,13 +275,17 @@ LogLuvDecode24(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) - if (sp->user_datafmt == SGILOGDATAFMT_RAW) - tp = (uint32 *)op; - else { -- assert(sp->tbuflen >= npixels); -+ if(sp->tbuflen < npixels) { -+ TIFFErrorExt(tif->tif_clientdata, module, -+ "Translation buffer too short"); -+ return (0); -+ } - tp = (uint32 *) sp->tbuf; - } - /* copy to array of uint32 */ - bp = (unsigned char*) tif->tif_rawcp; - cc = tif->tif_rawcc; -- for (i = 0; i < npixels && cc > 0; i++) { -+ for (i = 0; i < npixels && cc >= 3; i++) { - tp[i] = bp[0] << 16 | bp[1] << 8 | bp[2]; - bp += 3; - cc -= 3; -@@ -325,7 +336,11 @@ LogLuvDecode32(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) - if (sp->user_datafmt == SGILOGDATAFMT_RAW) - tp = (uint32*) op; - else { -- assert(sp->tbuflen >= npixels); -+ if(sp->tbuflen < npixels) { -+ TIFFErrorExt(tif->tif_clientdata, module, -+ "Translation buffer too short"); -+ return (0); -+ } - tp = (uint32*) sp->tbuf; - } - _TIFFmemset((void*) tp, 0, npixels*sizeof (tp[0])); -@@ -334,11 +349,13 @@ LogLuvDecode32(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) - cc = tif->tif_rawcc; - /* get each byte string */ - for (shft = 4*8; (shft -= 8) >= 0; ) { -- for (i = 0; i < npixels && cc > 0; ) -+ for (i = 0; i < npixels && cc > 0; ) { - if (*bp >= 128) { /* run */ -+ if( cc < 2 ) -+ break; - rc = *bp++ + (2-128); - b = (uint32)*bp++ << shft; -- cc -= 2; /* TODO: potential input buffer overrun when decoding corrupt or truncated data */ -+ cc -= 2; - while (rc-- && i < npixels) - tp[i++] |= b; - } else { /* non-run */ -@@ -346,6 +363,7 @@ LogLuvDecode32(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) - while (--cc && rc-- && i < npixels) - tp[i++] |= (uint32)*bp++ << shft; - } -+ } - if (i != npixels) { - #if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, -@@ -413,6 +431,7 @@ LogLuvDecodeTile(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - static int - LogL16Encode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - { -+ static const char module[] = "LogL16Encode"; - LogLuvState* sp = EncoderState(tif); - int shft; - tmsize_t i; -@@ -433,7 +452,11 @@ LogL16Encode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - tp = (int16*) bp; - else { - tp = (int16*) sp->tbuf; -- assert(sp->tbuflen >= npixels); -+ if(sp->tbuflen < npixels) { -+ TIFFErrorExt(tif->tif_clientdata, module, -+ "Translation buffer too short"); -+ return (0); -+ } - (*sp->tfunc)(sp, bp, npixels); - } - /* compress each byte string */ -@@ -506,6 +529,7 @@ LogL16Encode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - static int - LogLuvEncode24(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - { -+ static const char module[] = "LogLuvEncode24"; - LogLuvState* sp = EncoderState(tif); - tmsize_t i; - tmsize_t npixels; -@@ -521,7 +545,11 @@ LogLuvEncode24(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - tp = (uint32*) bp; - else { - tp = (uint32*) sp->tbuf; -- assert(sp->tbuflen >= npixels); -+ if(sp->tbuflen < npixels) { -+ TIFFErrorExt(tif->tif_clientdata, module, -+ "Translation buffer too short"); -+ return (0); -+ } - (*sp->tfunc)(sp, bp, npixels); - } - /* write out encoded pixels */ -@@ -553,6 +581,7 @@ LogLuvEncode24(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - static int - LogLuvEncode32(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - { -+ static const char module[] = "LogLuvEncode32"; - LogLuvState* sp = EncoderState(tif); - int shft; - tmsize_t i; -@@ -574,7 +603,11 @@ LogLuvEncode32(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) - tp = (uint32*) bp; - else { - tp = (uint32*) sp->tbuf; -- assert(sp->tbuflen >= npixels); -+ if(sp->tbuflen < npixels) { -+ TIFFErrorExt(tif->tif_clientdata, module, -+ "Translation buffer too short"); -+ return (0); -+ } - (*sp->tfunc)(sp, bp, npixels); - } - /* compress each byte string */ |