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authorNatanael Copa <ncopa@alpinelinux.org>2013-08-07 12:21:11 +0000
committerNatanael Copa <ncopa@alpinelinux.org>2013-08-07 12:21:11 +0000
commitc14e887330c5944f12ea9eb71a29774bf9a1f09a (patch)
tree0472f2cf0134d7a643acd5d2bbd704a3b6b03ab0 /main/tiff/libtiff-CVE-2013-1960.patch
parent07620e72a2f2ae94b7e519acbfe0905854825831 (diff)
downloadaports-c14e887330c5944f12ea9eb71a29774bf9a1f09a.tar.bz2
aports-c14e887330c5944f12ea9eb71a29774bf9a1f09a.tar.xz
main/tiff: sec fixes from upstream (CVE-2012-4447,CVE-2012-4564,CVE-2013-1960,CVE-2013-1961)
ref #2203 fixes #2204
Diffstat (limited to 'main/tiff/libtiff-CVE-2013-1960.patch')
-rw-r--r--main/tiff/libtiff-CVE-2013-1960.patch145
1 files changed, 145 insertions, 0 deletions
diff --git a/main/tiff/libtiff-CVE-2013-1960.patch b/main/tiff/libtiff-CVE-2013-1960.patch
new file mode 100644
index 0000000000..1c8dfb7bc6
--- /dev/null
+++ b/main/tiff/libtiff-CVE-2013-1960.patch
@@ -0,0 +1,145 @@
+diff -Naur tiff-4.0.3.orig/tools/tiff2pdf.c tiff-4.0.3/tools/tiff2pdf.c
+--- tiff-4.0.3.orig/tools/tiff2pdf.c 2012-07-25 22:56:43.000000000 -0400
++++ tiff-4.0.3/tools/tiff2pdf.c 2013-05-02 12:04:49.057090227 -0400
+@@ -3341,33 +3341,56 @@
+ uint32 height){
+
+ tsize_t i=0;
+- uint16 ri =0;
+- uint16 v_samp=1;
+- uint16 h_samp=1;
+- int j=0;
+-
+- i++;
+-
+- while(i<(*striplength)){
++
++ while (i < *striplength) {
++ tsize_t datalen;
++ uint16 ri;
++ uint16 v_samp;
++ uint16 h_samp;
++ int j;
++ int ncomp;
++
++ /* marker header: one or more FFs */
++ if (strip[i] != 0xff)
++ return(0);
++ i++;
++ while (i < *striplength && strip[i] == 0xff)
++ i++;
++ if (i >= *striplength)
++ return(0);
++ /* SOI is the only pre-SOS marker without a length word */
++ if (strip[i] == 0xd8)
++ datalen = 0;
++ else {
++ if ((*striplength - i) <= 2)
++ return(0);
++ datalen = (strip[i+1] << 8) | strip[i+2];
++ if (datalen < 2 || datalen >= (*striplength - i))
++ return(0);
++ }
+ switch( strip[i] ){
+- case 0xd8:
+- /* SOI - start of image */
++ case 0xd8: /* SOI - start of image */
+ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), 2);
+ *bufferoffset+=2;
+- i+=2;
+ break;
+- case 0xc0:
+- case 0xc1:
+- case 0xc3:
+- case 0xc9:
+- case 0xca:
++ case 0xc0: /* SOF0 */
++ case 0xc1: /* SOF1 */
++ case 0xc3: /* SOF3 */
++ case 0xc9: /* SOF9 */
++ case 0xca: /* SOF10 */
+ if(no==0){
+- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
+- for(j=0;j<buffer[*bufferoffset+9];j++){
+- if( (buffer[*bufferoffset+11+(2*j)]>>4) > h_samp)
+- h_samp = (buffer[*bufferoffset+11+(2*j)]>>4);
+- if( (buffer[*bufferoffset+11+(2*j)] & 0x0f) > v_samp)
+- v_samp = (buffer[*bufferoffset+11+(2*j)] & 0x0f);
++ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
++ ncomp = buffer[*bufferoffset+9];
++ if (ncomp < 1 || ncomp > 4)
++ return(0);
++ v_samp=1;
++ h_samp=1;
++ for(j=0;j<ncomp;j++){
++ uint16 samp = buffer[*bufferoffset+11+(3*j)];
++ if( (samp>>4) > h_samp)
++ h_samp = (samp>>4);
++ if( (samp & 0x0f) > v_samp)
++ v_samp = (samp & 0x0f);
+ }
+ v_samp*=8;
+ h_samp*=8;
+@@ -3381,45 +3404,43 @@
+ (unsigned char) ((height>>8) & 0xff);
+ buffer[*bufferoffset+6]=
+ (unsigned char) (height & 0xff);
+- *bufferoffset+=strip[i+2]+2;
+- i+=strip[i+2]+2;
+-
++ *bufferoffset+=datalen+2;
++ /* insert a DRI marker */
+ buffer[(*bufferoffset)++]=0xff;
+ buffer[(*bufferoffset)++]=0xdd;
+ buffer[(*bufferoffset)++]=0x00;
+ buffer[(*bufferoffset)++]=0x04;
+ buffer[(*bufferoffset)++]=(ri >> 8) & 0xff;
+ buffer[(*bufferoffset)++]= ri & 0xff;
+- } else {
+- i+=strip[i+2]+2;
+ }
+ break;
+- case 0xc4:
+- case 0xdb:
+- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
+- *bufferoffset+=strip[i+2]+2;
+- i+=strip[i+2]+2;
++ case 0xc4: /* DHT */
++ case 0xdb: /* DQT */
++ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
++ *bufferoffset+=datalen+2;
+ break;
+- case 0xda:
++ case 0xda: /* SOS */
+ if(no==0){
+- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
+- *bufferoffset+=strip[i+2]+2;
+- i+=strip[i+2]+2;
++ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
++ *bufferoffset+=datalen+2;
+ } else {
+ buffer[(*bufferoffset)++]=0xff;
+ buffer[(*bufferoffset)++]=
+ (unsigned char)(0xd0 | ((no-1)%8));
+- i+=strip[i+2]+2;
+ }
+- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), (*striplength)-i-1);
+- *bufferoffset+=(*striplength)-i-1;
++ i += datalen + 1;
++ /* copy remainder of strip */
++ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i]), *striplength - i);
++ *bufferoffset+= *striplength - i;
+ return(1);
+ default:
+- i+=strip[i+2]+2;
++ /* ignore any other marker */
++ break;
+ }
++ i += datalen + 1;
+ }
+-
+
++ /* failed to find SOS marker */
+ return(0);
+ }
+ #endif