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cups-2.4.2-CVE-2023-4504.patch
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File cups-2.4.2-CVE-2023-4504.patch of Package cups
--- cups/raster-interpret.c.orig 2022-05-26 08:17:21.000000000 +0200 +++ cups/raster-interpret.c 2023-09-20 14:56:44.666363324 +0200 @@ -1113,6 +1113,18 @@ scan_ps(_cups_ps_stack_t *st, /* I - S cur ++; + /* + * Return NULL if we reached NULL terminator, a lone backslash + * is not a valid character in PostScript. + */ + + if (!*cur) + { + *ptr = NULL; + + return (NULL); + } + if (*cur == 'b') *valptr++ = '\b'; else if (*cur == 'f')
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