18d0cec29e
* gnu/packages/patches/pcre2-CVE-2017-7186.patch: New file. * gnu/packages/pcre.scm (pcre2)[source]: Use it. * gnu/local.mk (dist_patch_DATA): Add it.
68 lines
2.7 KiB
Diff
68 lines
2.7 KiB
Diff
Patch for <https://nvd.nist.gov/vuln/detail?vulnId=CVE-2017-7186>
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taken from <https://vcs.pcre.org/pcre2?view=revision&revision=670>.
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--- trunk/src/pcre2_internal.h 2016/11/19 12:46:24 600
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+++ trunk/src/pcre2_internal.h 2017/02/24 18:25:32 670
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@@ -1774,10 +1774,17 @@
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/* UCD access macros */
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#define UCD_BLOCK_SIZE 128
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-#define GET_UCD(ch) (PRIV(ucd_records) + \
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+#define REAL_GET_UCD(ch) (PRIV(ucd_records) + \
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PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
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UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
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+#if PCRE2_CODE_UNIT_WIDTH == 32
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+#define GET_UCD(ch) ((ch > MAX_UTF_CODE_POINT)? \
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+ PRIV(dummy_ucd_record) : REAL_GET_UCD(ch))
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+#else
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+#define GET_UCD(ch) REAL_GET_UCD(ch)
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+#endif
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+
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#define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
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#define UCD_SCRIPT(ch) GET_UCD(ch)->script
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#define UCD_CATEGORY(ch) PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
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@@ -1834,6 +1841,9 @@
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#define _pcre2_default_compile_context PCRE2_SUFFIX(_pcre2_default_compile_context_)
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#define _pcre2_default_match_context PCRE2_SUFFIX(_pcre2_default_match_context_)
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#define _pcre2_default_tables PCRE2_SUFFIX(_pcre2_default_tables_)
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+#if PCRE2_CODE_UNIT_WIDTH == 32
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+#define _pcre2_dummy_ucd_record PCRE2_SUFFIX(_pcre2_dummy_ucd_record_)
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+#endif
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#define _pcre2_hspace_list PCRE2_SUFFIX(_pcre2_hspace_list_)
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#define _pcre2_vspace_list PCRE2_SUFFIX(_pcre2_vspace_list_)
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#define _pcre2_ucd_caseless_sets PCRE2_SUFFIX(_pcre2_ucd_caseless_sets_)
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@@ -1858,6 +1868,9 @@
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extern const uint32_t PRIV(vspace_list)[];
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extern const uint32_t PRIV(ucd_caseless_sets)[];
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extern const ucd_record PRIV(ucd_records)[];
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+#if PCRE2_CODE_UNIT_WIDTH == 32
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+extern const ucd_record PRIV(dummy_ucd_record)[];
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+#endif
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extern const uint8_t PRIV(ucd_stage1)[];
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extern const uint16_t PRIV(ucd_stage2)[];
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extern const uint32_t PRIV(ucp_gbtable)[];
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--- trunk/src/pcre2_ucd.c 2015/07/17 15:44:51 316
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+++ trunk/src/pcre2_ucd.c 2017/02/24 18:25:32 670
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@@ -41,6 +41,20 @@
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const char *PRIV(unicode_version) = "8.0.0";
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+/* If the 32-bit library is run in non-32-bit mode, character values
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+greater than 0x10ffff may be encountered. For these we set up a
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+special record. */
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+
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+#if PCRE2_CODE_UNIT_WIDTH == 32
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+const ucd_record PRIV(dummy_ucd_record)[] = {{
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+ ucp_Common, /* script */
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+ ucp_Cn, /* type unassigned */
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+ ucp_gbOther, /* grapheme break property */
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+ 0, /* case set */
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+ 0, /* other case */
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+ }};
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+#endif
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+
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/* When recompiling tables with a new Unicode version, please check the
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types in this structure definition from pcre2_internal.h (the actual
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field names will be different):
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