30 lines
1.2 KiB
Diff
30 lines
1.2 KiB
Diff
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diff -up texlive-2007/texk/dvipsk/dospecial.c.CVE-2010-0739,1440 texlive-2007/texk/dvipsk/dospecial.c
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--- texlive-2007/texk/dvipsk/dospecial.c.CVE-2010-0739,1440 2006-12-07 23:39:19.000000000 +0100
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+++ texlive-2007/texk/dvipsk/dospecial.c 2010-05-09 10:35:33.724632292 +0200
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@@ -325,7 +325,11 @@ void predospecial P2C(integer, numbytes,
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int j ;
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static int omega_specials = 0;
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- if (nextstring + numbytes > maxstring) {
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+ if (numbytes < 0 || numbytes > maxstring - nextstring) {
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+ if (numbytes < 0 || numbytes > (INT_MAX - 1000) / 2) {
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+ error("! Integer overflow in predospecial");
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+ exit(1);
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+ }
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p = nextstring = mymalloc(1000 + 2 * numbytes) ;
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maxstring = nextstring + 2 * numbytes + 700 ;
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}
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@@ -903,7 +907,11 @@ float *bbdospecial P1C(int, nbytes)
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char seen[NKEYS] ;
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float valseen[NKEYS] ;
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- if (nextstring + nbytes > maxstring) {
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+ if (nbytes < 0 || nbytes > maxstring - nextstring) {
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+ if (nbytes < 0 || nbytes > (INT_MAX - 1000) / 2) {
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+ error("! Integer overflow in bbdospecial");
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+ exit(1);
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+ }
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p = nextstring = mymalloc(1000 + 2 * nbytes) ;
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maxstring = nextstring + 2 * nbytes + 700 ;
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}
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