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-rw-r--r--gnu/packages/patches/pcre-CVE-2017-7186.patch56
1 files changed, 56 insertions, 0 deletions
diff --git a/gnu/packages/patches/pcre-CVE-2017-7186.patch b/gnu/packages/patches/pcre-CVE-2017-7186.patch
new file mode 100644
index 0000000000..d23aa10374
--- /dev/null
+++ b/gnu/packages/patches/pcre-CVE-2017-7186.patch
@@ -0,0 +1,56 @@
+Patch for <https://nvd.nist.gov/vuln/detail?vulnId=CVE-2017-7186>
+from <https://vcs.pcre.org/pcre?view=revision&revision=1688>.
+
+--- trunk/pcre_internal.h 2016/05/21 13:34:44 1649
++++ trunk/pcre_internal.h 2017/02/24 17:30:30 1688
+@@ -2772,6 +2772,9 @@
+ extern const pcre_uint16 PRIV(ucd_stage2)[];
+ extern const pcre_uint32 PRIV(ucp_gentype)[];
+ extern const pcre_uint32 PRIV(ucp_gbtable)[];
++#ifdef COMPILE_PCRE32
++extern const ucd_record PRIV(dummy_ucd_record)[];
++#endif
+ #ifdef SUPPORT_JIT
+ extern const int PRIV(ucp_typerange)[];
+ #endif
+@@ -2780,9 +2783,15 @@
+ /* UCD access macros */
+
+ #define UCD_BLOCK_SIZE 128
+-#define GET_UCD(ch) (PRIV(ucd_records) + \
++#define REAL_GET_UCD(ch) (PRIV(ucd_records) + \
+ PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
+ UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
++
++#ifdef COMPILE_PCRE32
++#define GET_UCD(ch) ((ch > 0x10ffff)? PRIV(dummy_ucd_record) : REAL_GET_UCD(ch))
++#else
++#define GET_UCD(ch) REAL_GET_UCD(ch)
++#endif
+
+ #define UCD_CHARTYPE(ch) GET_UCD(ch)->chartype
+ #define UCD_SCRIPT(ch) GET_UCD(ch)->script
+
+--- trunk/pcre_ucd.c 2014/06/19 07:51:39 1490
++++ trunk/pcre_ucd.c 2017/02/24 17:30:30 1688
+@@ -38,6 +38,20 @@
+ const pcre_uint32 PRIV(ucd_caseless_sets)[] = {0};
+ #else
+
++/* If the 32-bit library is run in non-32-bit mode, character values
++greater than 0x10ffff may be encountered. For these we set up a
++special record. */
++
++#ifdef COMPILE_PCRE32
++const ucd_record PRIV(dummy_ucd_record)[] = {{
++ ucp_Common, /* script */
++ ucp_Cn, /* type unassigned */
++ ucp_gbOther, /* grapheme break property */
++ 0, /* case set */
++ 0, /* other case */
++ }};
++#endif
++
+ /* When recompiling tables with a new Unicode version, please check the
+ types in this structure definition from pcre_internal.h (the actual
+ field names will be different):