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45 lines
1.4 KiB
45 lines
1.4 KiB
6 years ago
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BASH PATCH REPORT
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=================
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Bash-Release: 4.2
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Patch-ID: bash42-052
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Bug-Reported-by: Michal Zalewski <lcamtuf@coredump.cx>
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Bug-Reference-ID:
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Bug-Reference-URL:
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Bug-Description:
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When bash is parsing a function definition that contains a here-document
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delimited by end-of-file (or end-of-string), it leaves the closing delimiter
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uninitialized. This can result in an invalid memory access when the parsed
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function is later copied.
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Patch (apply with `patch -p0'):
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*** ../bash-4.2.51/make_cmd.c 2009-09-11 17:26:12.000000000 -0400
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--- make_cmd.c 2014-10-02 11:26:58.000000000 -0400
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***************
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*** 690,693 ****
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--- 690,694 ----
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temp->redirector = source;
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temp->redirectee = dest_and_filename;
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+ temp->here_doc_eof = 0;
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temp->instruction = instruction;
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temp->flags = 0;
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*** ../bash-4.2.51/copy_cmd.c 2009-09-11 16:28:02.000000000 -0400
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--- copy_cmd.c 2014-10-02 11:26:58.000000000 -0400
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***************
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*** 127,131 ****
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case r_reading_until:
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case r_deblank_reading_until:
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! new_redirect->here_doc_eof = savestring (redirect->here_doc_eof);
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/*FALLTHROUGH*/
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case r_reading_string:
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--- 127,131 ----
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case r_reading_until:
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case r_deblank_reading_until:
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! new_redirect->here_doc_eof = redirect->here_doc_eof ? savestring (redirect->here_doc_eof) : 0;
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/*FALLTHROUGH*/
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case r_reading_string:
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