45 lines
1.4 KiB
Diff
45 lines
1.4 KiB
Diff
bash: Fix CVE-2014-6277 (shellshock)
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Upstream-status: backport
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Downloaded from:
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ftp://ftp.gnu.org/pub/bash/bash-4.3-patches/bash43-029
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Author: Chet Ramey <chet.ramey@case.edu>
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Signed-off-by: Catalin Popeanga <catalin.popeanga@enea.com>
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BASH PATCH REPORT
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=================
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Bash-Release: 4.3
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Patch-ID: bash43-029
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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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---
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--- a/make_cmd.c 2011-12-16 08:08:01.000000000 -0500
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+++ b/make_cmd.c 2014-10-02 11:24:23.000000000 -0400
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@@ -693,4 +693,5 @@
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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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--- a/copy_cmd.c 2009-09-11 16:28:02.000000000 -0400
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+++ b/copy_cmd.c 2014-10-02 11:24:23.000000000 -0400
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@@ -127,5 +127,5 @@
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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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+ 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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