Update PackJPG to version 2.5h.
Fix missing bounds checking in Delta2.
This commit is contained in:
parent
a851bac247
commit
dcc64d9e47
2 changed files with 27 additions and 13 deletions
|
@ -91,8 +91,7 @@
|
|||
|
||||
/*
|
||||
* Stride values to be checked. As of this implementation strides only
|
||||
* upto 8 bytes (uint64_t) are supported and common type lengths only
|
||||
* are checked.
|
||||
* upto 8 bytes (uint64_t) are supported.
|
||||
*/
|
||||
#define NSTRIDES NSTRIDES_EXTRA
|
||||
static uchar_t strides[NSTRIDES] = {2, 4, 8, 3, 5, 6, 7};
|
||||
|
@ -480,7 +479,7 @@ delta2_decode(uchar_t *src, uint64_t srclen, uchar_t *dst, uint64_t *dstlen)
|
|||
|
||||
} else {
|
||||
stride = flags;
|
||||
if (stride > STRIDE_MAX) {
|
||||
if (stride > STRIDE_MAX || stride < STRIDE_MIN) {
|
||||
log_msg(LOG_ERR, 0, "DELTA2 Decode(delta): Invalid stride length: %d. Corrupt data.\n", stride);
|
||||
return (-1);
|
||||
}
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
packJPG v2.5g (09/14/2013)
|
||||
packJPG v2.5h (12/07/2013)
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
packJPG is a compression program specially designed for further
|
||||
|
@ -226,6 +226,9 @@ v2.5f (02/24/13) (public)
|
|||
v2.5g (09/14/13) (public)
|
||||
- fixed a rare crash bug with manipulated JPEG files
|
||||
|
||||
v2.5h (12/07/13) (public)
|
||||
- added a warning for inefficient huffman coding (thanks to Moinak Ghosh)
|
||||
|
||||
|
||||
Acknowledgements
|
||||
~~~~~~~~~~~~~~~~
|
||||
|
@ -254,7 +257,7 @@ For questions and bug reports:
|
|||
|
||||
|
||||
____________________________________
|
||||
packJPG by Matthias Stirner, 09/2013
|
||||
packJPG by Matthias Stirner, 12/2013
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
@ -672,10 +675,10 @@ INTERN unsigned char orig_set[ 8 ] = { 0 }; // store array for settings
|
|||
----------------------------------------------- */
|
||||
|
||||
INTERN const unsigned char appversion = 25;
|
||||
INTERN const char* subversion = "g";
|
||||
INTERN const char* subversion = "h";
|
||||
INTERN const char* apptitle = "packJPG";
|
||||
INTERN const char* appname = "packjpg";
|
||||
INTERN const char* versiondate = "09/14/2013";
|
||||
INTERN const char* versiondate = "12/07/2013";
|
||||
INTERN const char* author = "Matthias Stirner / Se";
|
||||
#if !defined(BUILD_LIB)
|
||||
INTERN const char* website = "http://www.elektronik.htw-aalen.de/packjpg/";
|
||||
|
@ -2462,6 +2465,12 @@ INTERN bool decode_jpeg( void )
|
|||
&(htrees[ 1 ][ cmpnfo[cmp].huffdc ]),
|
||||
block );
|
||||
|
||||
// check for non optimal coding
|
||||
if ( ( eob > 1 ) && ( block[ eob - 1 ] == 0 ) ) {
|
||||
sprintf( errormessage, "reconstruction of inefficient coding not supported" );
|
||||
errorlevel = 1;
|
||||
}
|
||||
|
||||
// fix dc
|
||||
block[ 0 ] += lastdc[ cmp ];
|
||||
lastdc[ cmp ] = block[ 0 ];
|
||||
|
@ -2523,6 +2532,12 @@ INTERN bool decode_jpeg( void )
|
|||
&(htrees[ 1 ][ cmpnfo[cmp].huffdc ]),
|
||||
block );
|
||||
|
||||
// check for non optimal coding
|
||||
if ( ( eob > 1 ) && ( block[ eob - 1 ] == 0 ) ) {
|
||||
sprintf( errormessage, "reconstruction of inefficient coding not supported" );
|
||||
errorlevel = 1;
|
||||
}
|
||||
|
||||
// fix dc
|
||||
block[ 0 ] += lastdc[ cmp ];
|
||||
lastdc[ cmp ] = block[ 0 ];
|
||||
|
@ -2590,7 +2605,7 @@ INTERN bool decode_jpeg( void )
|
|||
if ( ( eob == cs_from ) && ( peobrun > 0 ) &&
|
||||
( peobrun < hcodes[ 1 ][ cmpnfo[cmp].huffac ].max_eobrun - 1 ) ) {
|
||||
sprintf( errormessage,
|
||||
"reconstruction of non optimal coding not supported" );
|
||||
"reconstruction of inefficient coding not supported" );
|
||||
errorlevel = 1;
|
||||
}
|
||||
peobrun = eobrun;
|
||||
|
@ -2630,7 +2645,7 @@ INTERN bool decode_jpeg( void )
|
|||
if ( ( eob == cs_from ) && ( peobrun > 0 ) &&
|
||||
( peobrun < hcodes[ 1 ][ cmpnfo[cmp].huffac ].max_eobrun - 1 ) ) {
|
||||
sprintf( errormessage,
|
||||
"reconstruction of non optimal coding not supported" );
|
||||
"reconstruction of inefficient coding not supported" );
|
||||
errorlevel = 1;
|
||||
}
|
||||
|
||||
|
@ -3798,7 +3813,7 @@ INTERN bool jpg_parse_jfif( unsigned char type, unsigned int len, unsigned char*
|
|||
case 0xE9: // APP9 segment
|
||||
case 0xEA: // APP10 segment
|
||||
case 0xEB: // APP11 segment
|
||||
case 0xEC: // APP12segment
|
||||
case 0xEC: // APP12 segment
|
||||
case 0xED: // APP13 segment
|
||||
case 0xEE: // APP14 segment
|
||||
case 0xEF: // APP15 segment
|
||||
|
@ -3807,7 +3822,7 @@ INTERN bool jpg_parse_jfif( unsigned char type, unsigned int len, unsigned char*
|
|||
return true;
|
||||
|
||||
case 0xD0: // RST0 segment
|
||||
case 0xD1: // RST1segment
|
||||
case 0xD1: // RST1 segment
|
||||
case 0xD2: // RST2 segment
|
||||
case 0xD3: // RST3 segment
|
||||
case 0xD4: // RST4 segment
|
||||
|
|
Loading…
Reference in a new issue