a5bf04c3a5
- Applied patch to prevent heap-based buffer overflow in CUPS helper
program (bug #436153, CVE-2008-0047, STR #2729).
23 lines
632 B
Diff
23 lines
632 B
Diff
diff -up cups-1.3.6/filter/image-gif.c.CVE-2008-1373 cups-1.3.6/filter/image-gif.c
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--- cups-1.3.6/filter/image-gif.c.CVE-2008-1373 2008-01-14 22:12:58.000000000 +0000
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+++ cups-1.3.6/filter/image-gif.c 2008-04-01 16:43:22.000000000 +0100
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@@ -38,6 +38,8 @@
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#define GIF_INTERLACE 0x40
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#define GIF_COLORMAP 0x80
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+#define MAX_LWZ_BITS 12
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+
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typedef cups_ib_t gif_cmap_t[256][4];
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typedef short gif_table_t[4096];
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@@ -465,6 +467,9 @@ gif_read_image(FILE *fp, /* I -
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if (!pixels)
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return (-1);
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+ if (code_size > MAX_LWZ_BITS)
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+ return (-1);
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+
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if (gif_read_lzw(fp, 1, code_size) < 0)
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{
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free(pixels);
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