diff options
Diffstat (limited to 'media-gfx/ufraw/files/ufraw-0.22-CVE-2018-19655.patch')
| -rw-r--r-- | media-gfx/ufraw/files/ufraw-0.22-CVE-2018-19655.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/media-gfx/ufraw/files/ufraw-0.22-CVE-2018-19655.patch b/media-gfx/ufraw/files/ufraw-0.22-CVE-2018-19655.patch new file mode 100644 index 000000000000..78b46b4452e0 --- /dev/null +++ b/media-gfx/ufraw/files/ufraw-0.22-CVE-2018-19655.patch @@ -0,0 +1,44 @@ +Description: stack-based buffer overflow bug +Bug-Debian: https://bugs.debian.org/890086 +Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2018-19655 +Author: Filip Hroch <hroch@physics.muni.cz> +Reviewed-by: Salvatore Bonaccorso <carnil@debian.org> +Last-Update: 2018-12-02 + +--- a/dcraw.cc ++++ b/dcraw.cc +@@ -8505,9 +8505,15 @@ float CLASS find_green (int bps, int bit + { + UINT64 bitbuf=0; + int vbits, col, i, c; +- ushort img[2][2064]; ++ ushort *img; + double sum[]={0,0}; + ++#define IMG2D(row,col) \ ++ img[(row)*width+(col)] ++ ++ img = (ushort *) malloc(2*width*sizeof(ushort)); ++ merror (img, "find_green()"); ++ + FORC(2) { + fseek (ifp, c ? off1:off0, SEEK_SET); + for (vbits=col=0; col < width; col++) { +@@ -8516,13 +8522,14 @@ float CLASS find_green (int bps, int bit + for (i=0; i < bite; i+=8) + bitbuf |= (unsigned) (fgetc(ifp) << i); + } +- img[c][col] = bitbuf << (64-bps-vbits) >> (64-bps); ++ IMG2D(c,col) = bitbuf << (64-bps-vbits) >> (64-bps); + } + } + FORC(width-1) { +- sum[ c & 1] += ABS(img[0][c]-img[1][c+1]); +- sum[~c & 1] += ABS(img[1][c]-img[0][c+1]); ++ sum[ c & 1] += ABS(IMG2D(0,c)-IMG2D(1,c+1)); ++ sum[~c & 1] += ABS(IMG2D(1,c)-IMG2D(0,c+1)); + } ++ free(img); + return 100 * log(sum[0]/sum[1]); + } + |