Fix workspace overflow for (*ACCEPT) with deeply nested parentheses. The patch is from libpcre version control at http://vcs.pcre.org/pcre?view=revision&revision=1631 with the ChangeLog part removed. Original author is Philip Hazel.
Upstream-Status: Accepted [8.39] CVE: CVE-2016-3191 Signed-off-by: Ismo Puustinen <[email protected]> --- .../libpcre/libpcre/CVE-2016-3191.patch | 147 +++++++++++++++++++++ meta/recipes-support/libpcre/libpcre_8.38.bb | 1 + 2 files changed, 148 insertions(+) create mode 100644 meta/recipes-support/libpcre/libpcre/CVE-2016-3191.patch diff --git a/meta/recipes-support/libpcre/libpcre/CVE-2016-3191.patch b/meta/recipes-support/libpcre/libpcre/CVE-2016-3191.patch new file mode 100644 index 0000000..ebd950c --- /dev/null +++ b/meta/recipes-support/libpcre/libpcre/CVE-2016-3191.patch @@ -0,0 +1,147 @@ +Index: pcre/pcre_internal.h +=================================================================== +--- pcre/pcre_internal.h (revision 1630) ++++ pcre/pcre_internal.h (revision 1631) +@@ -7,7 +7,7 @@ + and semantics are as close as possible to those of the Perl 5 language. + + Written by Philip Hazel +- Copyright (c) 1997-2014 University of Cambridge ++ Copyright (c) 1997-2016 University of Cambridge + + ----------------------------------------------------------------------------- + Redistribution and use in source and binary forms, with or without +@@ -2289,7 +2289,7 @@ + ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59, + ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69, + ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERR78, ERR79, +- ERR80, ERR81, ERR82, ERR83, ERR84, ERR85, ERR86, ERRCOUNT }; ++ ERR80, ERR81, ERR82, ERR83, ERR84, ERR85, ERR86, ERR87, ERRCOUNT }; + + /* JIT compiling modes. The function list is indexed by them. */ + +Index: pcre/pcre_compile.c +=================================================================== +--- pcre/pcre_compile.c (revision 1630) ++++ pcre/pcre_compile.c (revision 1631) +@@ -6,7 +6,7 @@ + and semantics are as close as possible to those of the Perl 5 language. + + Written by Philip Hazel +- Copyright (c) 1997-2014 University of Cambridge ++ Copyright (c) 1997-2016 University of Cambridge + + ----------------------------------------------------------------------------- + Redistribution and use in source and binary forms, with or without +@@ -560,6 +560,7 @@ + /* 85 */ + "parentheses are too deeply nested (stack check)\0" + "digits missing in \\x{} or \\o{}\0" ++ "regular expression is too complicated\0" + ; + + /* Table to identify digits and hex digits. This is used when compiling +@@ -4591,7 +4592,8 @@ + if (code > cd->start_workspace + cd->workspace_size - + WORK_SIZE_SAFETY_MARGIN) /* Check for overrun */ + { +- *errorcodeptr = ERR52; ++ *errorcodeptr = (code >= cd->start_workspace + cd->workspace_size)? ++ ERR52 : ERR87; + goto FAILED; + } + +@@ -6604,8 +6606,21 @@ + cd->had_accept = TRUE; + for (oc = cd->open_caps; oc != NULL; oc = oc->next) + { +- *code++ = OP_CLOSE; +- PUT2INC(code, 0, oc->number); ++ if (lengthptr != NULL) ++ { ++#ifdef COMPILE_PCRE8 ++ *lengthptr += 1 + IMM2_SIZE; ++#elif defined COMPILE_PCRE16 ++ *lengthptr += 2 + IMM2_SIZE; ++#elif defined COMPILE_PCRE32 ++ *lengthptr += 4 + IMM2_SIZE; ++#endif ++ } ++ else ++ { ++ *code++ = OP_CLOSE; ++ PUT2INC(code, 0, oc->number); ++ } + } + setverb = *code++ = + (cd->assert_depth > 0)? OP_ASSERT_ACCEPT : OP_ACCEPT; +Index: pcre/pcreposix.c +=================================================================== +--- pcre/pcreposix.c (revision 1630) ++++ pcre/pcreposix.c (revision 1631) +@@ -6,7 +6,7 @@ + and semantics are as close as possible to those of the Perl 5 language. + + Written by Philip Hazel +- Copyright (c) 1997-2014 University of Cambridge ++ Copyright (c) 1997-2016 University of Cambridge + + ----------------------------------------------------------------------------- + Redistribution and use in source and binary forms, with or without +@@ -173,7 +173,8 @@ + REG_BADPAT, /* group name must start with a non-digit */ + /* 85 */ + REG_BADPAT, /* parentheses too deeply nested (stack check) */ +- REG_BADPAT /* missing digits in \x{} or \o{} */ ++ REG_BADPAT, /* missing digits in \x{} or \o{} */ ++ REG_BADPAT /* pattern too complicated */ + }; + + /* Table of texts corresponding to POSIX error codes */ +Index: pcre/testdata/testoutput11-32 +=================================================================== +--- pcre/testdata/testoutput11-32 (revision 1630) ++++ pcre/testdata/testoutput11-32 (revision 1631) +@@ -765,4 +765,7 @@ + 25 End + ------------------------------------------------------------------ + ++/([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00](*ACCEPT)/ ++Failed: missing ) at offset 509 ++ + /-- End of testinput11 --/ +Index: pcre/testdata/testoutput11-16 +=================================================================== +--- pcre/testdata/testoutput11-16 (revision 1630) ++++ pcre/testdata/testoutput11-16 (revision 1631) +@@ -765,4 +765,7 @@ + 25 End + ------------------------------------------------------------------ + ++/([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00](*ACCEPT)/ ++Failed: regular expression is too complicated at offset 490 ++ + /-- End of testinput11 --/ +Index: pcre/testdata/testinput11 +=================================================================== +--- pcre/testdata/testinput11 (revision 1630) ++++ pcre/testdata/testinput11 (revision 1631) +@@ -138,4 +138,6 @@ + + /.((?2)(?R)\1)()/B + ++/([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00](*ACCEPT)/ ++ + /-- End of testinput11 --/ +Index: pcre/testdata/testoutput11-8 +=================================================================== +--- pcre/testdata/testoutput11-8 (revision 1630) ++++ pcre/testdata/testoutput11-8 (revision 1631) +@@ -765,4 +765,7 @@ + 38 End + ------------------------------------------------------------------ + ++/([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00]([00](*ACCEPT)/ ++Failed: missing ) at offset 509 ++ + /-- End of testinput11 --/ diff --git a/meta/recipes-support/libpcre/libpcre_8.38.bb b/meta/recipes-support/libpcre/libpcre_8.38.bb index 384c2fe..e4cd375 100644 --- a/meta/recipes-support/libpcre/libpcre_8.38.bb +++ b/meta/recipes-support/libpcre/libpcre_8.38.bb @@ -10,6 +10,7 @@ LIC_FILES_CHKSUM = "file://LICENCE;md5=7e4937814aee14758c1c95b59c80c44d" SRC_URI = "ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-${PV}.tar.bz2 \ file://pcre-cross.patch \ file://fix-pcre-name-collision.patch \ + file://CVE-2016-3191.patch \ file://run-ptest \ file://Makefile \ " -- 2.5.5 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
