author | Craig Mohrman <craig.mohrman@oracle.com> |
Tue, 15 Sep 2015 14:10:14 -0700 | |
branch | s11u3-sru |
changeset 4861 | 27f95cbe0040 |
parent 4583 | 66352b5ed68a |
permissions | -rw-r--r-- |
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Patch from upstream: |
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http://vcs.pcre.org/pcre?view=revision&revision=1566 |
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to fix CVE-2015-3217 for this upstream bug |
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https://bugs.exim.org/show_bug.cgi?id=1638 |
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|
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This patch may be removed when pcre is upgraded from version 8.37 |
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--- pcre-8.37-orig/ChangeLog 2015-06-18 14:42:05.162869794 -0700 |
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+++ pcre-8.37/ChangeLog 2015-06-18 14:42:49.750142570 -0700 |
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@@ -23,6 +23,10 @@ Changes since Version 8.37 |
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another group caused a buffer overflow. For example: |
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/(?J)(?'d'(?'d'\g{d}))/. This bug was discovered by the LLVM fuzzer. |
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+5. If a non-capturing group containing a conditional group that could match |
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+ an empty string was repeated, it was not identified as matching an empty |
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+ string itself. For example: /^(?:(?(1)x|)+)+$()/. |
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+ |
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Version 8.37 28-April-2015 |
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-------------------------- |
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--- pcre-8.37-orig/pcre_compile.c 2015-06-18 14:43:18.613383953 -0700 |
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+++ pcre-8.37/pcre_compile.c 2015-06-18 14:44:14.866515479 -0700 |
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@@ -2487,7 +2487,7 @@ for (code = first_significant_code(code |
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if (c == OP_BRA || c == OP_BRAPOS || |
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c == OP_CBRA || c == OP_CBRAPOS || |
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c == OP_ONCE || c == OP_ONCE_NC || |
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- c == OP_COND) |
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+ c == OP_COND || c == OP_SCOND) |
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{ |
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BOOL empty_branch; |
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if (GET(code, 1) == 0) return TRUE; /* Hit unclosed bracket */ |
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--- pcre-8.37-orig/testdata/testinput2 2015-06-18 14:45:30.453719449 -0700 |
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+++ pcre-8.37/testdata/testinput2 2015-06-18 14:46:14.175672070 -0700 |
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@@ -4168,4 +4168,6 @@ backtracking verbs. --/ |
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"(?J)(?'d'(?'d'\g{d}))" |
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+/^(?:(?(1)x|)+)+$()/BZ |
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+ |
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/-- End of testinput2 --/ |
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--- pcre-8.37-orig/testdata/testoutput2 2015-06-18 14:45:38.047882931 -0700 |
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+++ pcre-8.37/testdata/testoutput2 2015-06-18 14:47:02.815368178 -0700 |
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@@ -14456,4 +14456,22 @@ Failed: reference to non-existent subpat |
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"(?J)(?'d'(?'d'\g{d}))" |
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+/^(?:(?(1)x|)+)+$()/BZ |
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+------------------------------------------------------------------ |
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+ Bra |
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+ ^ |
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+ SBra |
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+ SCond |
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+ 1 Cond ref |
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+ x |
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+ Alt |
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+ KetRmax |
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+ KetRmax |
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+ $ |
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+ CBra 1 |
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+ Ket |
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+ Ket |
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+ End |
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+------------------------------------------------------------------ |
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+ |
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/-- End of testinput2 --/ |