From: Nick Clifton Date: Thu, 26 Feb 2015 12:23:18 +0000 (+0000) Subject: Fixes a resource exhaustion problem when running windres on a corrupt binary. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e3ee40059d4a4e04d10e2b5c46bacd2a810355ca;p=binutils-gdb.git Fixes a resource exhaustion problem when running windres on a corrupt binary. PR binutils/17512 * resrc.c (write_rc_messagetable): Tighten check for invalid message lengths. --- diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 2d707609bbe..8657b1d256b 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,9 @@ +2015-02-26 Nick Clifton + + PR binutils/17512 + * resrc.c (write_rc_messagetable): Tighten check for invalid + message lengths. + 2015-02-26 Terry Guo * readelf.c (arm_attr_tag_ABI_HardFP_use): Update how we diff --git a/binutils/resrc.c b/binutils/resrc.c index f0cacd16b1a..b4edba992fc 100644 --- a/binutils/resrc.c +++ b/binutils/resrc.c @@ -2923,6 +2923,7 @@ write_rc_messagetable (FILE *e, rc_uint_type length, const bfd_byte *data) { int has_error = 0; const struct bin_messagetable *mt; + fprintf (e, "BEGIN\n"); write_rc_datablock (e, length, data, 0, 0, 0); @@ -2952,6 +2953,7 @@ write_rc_messagetable (FILE *e, rc_uint_type length, const bfd_byte *data) low = windres_get_32 (&wrtarget, mt->items[i].lowid, 4); high = windres_get_32 (&wrtarget, mt->items[i].highid, 4); offset = windres_get_32 (&wrtarget, mt->items[i].offset, 4); + while (low <= high) { rc_uint_type elen, flags; @@ -2971,16 +2973,20 @@ write_rc_messagetable (FILE *e, rc_uint_type length, const bfd_byte *data) wr_printcomment (e, "MessageId = 0x%x", low); wr_printcomment (e, ""); - /* PR 17512: file: 5c3232dc. */ - if (elen) + if ((flags & MESSAGE_RESOURCE_UNICODE) == MESSAGE_RESOURCE_UNICODE) { - if ((flags & MESSAGE_RESOURCE_UNICODE) == MESSAGE_RESOURCE_UNICODE) + /* PR 17512: file: 5c3232dc. */ + if (elen > BIN_MESSAGETABLE_ITEM_SIZE * 2) unicode_print (e, (const unichar *) mti->data, (elen - BIN_MESSAGETABLE_ITEM_SIZE) / 2); - else + } + else + { + if (elen > BIN_MESSAGETABLE_ITEM_SIZE) ascii_print (e, (const char *) mti->data, (elen - BIN_MESSAGETABLE_ITEM_SIZE)); } + wr_printcomment (e,""); ++low; offset += elen; @@ -3005,7 +3011,7 @@ write_rc_datablock (FILE *e, rc_uint_type length, const bfd_byte *data, int has_ fprintf (e, "BEGIN\n"); if (show_comment == -1) - { + { if (test_rc_datablock_text(length, data)) { rc_uint_type i, c; @@ -3018,7 +3024,7 @@ write_rc_datablock (FILE *e, rc_uint_type length, const bfd_byte *data, int has_ ; if (i < length && data[i] == '\n') ++i, ++c; - ascii_print (e, (const char *) &data[i - c], c); + ascii_print(e, (const char *) &data[i - c], c); fprintf (e, "\""); if (i < length) fprintf (e, "\n");