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author | Natanael Copa <ncopa@alpinelinux.org> | 2016-06-24 12:03:16 +0000 |
---|---|---|
committer | Natanael Copa <ncopa@alpinelinux.org> | 2016-06-24 14:35:59 +0200 |
commit | 3773f978e43b84d7ca9be80a9c0a66dbc8e7f99d (patch) | |
tree | ba7949f64f1e3dc41ed2f6b5ec838375e5c49df9 | |
parent | e167aa6160f3fd91cf4dd8de57245b283de5f099 (diff) | |
download | aports-3773f978e43b84d7ca9be80a9c0a66dbc8e7f99d.tar.bz2 aports-3773f978e43b84d7ca9be80a9c0a66dbc8e7f99d.tar.xz |
main/jansson: security fix for CVE-2016-4425
fixes #5791
(cherry picked from commit 36ab20a1ac9047916d193fc1aae1cf8be6b0ee23)
-rw-r--r-- | main/jansson/APKBUILD | 16 | ||||
-rw-r--r-- | main/jansson/CVE-2016-4425.patch | 138 |
2 files changed, 148 insertions, 6 deletions
diff --git a/main/jansson/APKBUILD b/main/jansson/APKBUILD index 31a4456f7a..961bb2533e 100644 --- a/main/jansson/APKBUILD +++ b/main/jansson/APKBUILD @@ -1,7 +1,7 @@ # Maintainer: Natanael Copa <ncopa@alpinelinux.org> pkgname=jansson pkgver=2.7 -pkgrel=0 +pkgrel=1 pkgdesc="lightweight JSON library" url="http://www.digip.org/jansson/" arch="all" @@ -11,7 +11,9 @@ depends_dev="" makedepends="$depends_dev" install="" subpackages="$pkgname-dev" -source="http://www.digip.org/jansson/releases/jansson-$pkgver.tar.bz2" +source="http://www.digip.org/jansson/releases/jansson-$pkgver.tar.bz2 + CVE-2016-4425.patch + " _builddir="$srcdir"/jansson-$pkgver prepare() { @@ -26,7 +28,6 @@ prepare() { build() { cd "$_builddir" - LIBS=-lm \ ./configure \ --build=$CBUILD \ --host=$CHOST \ @@ -44,6 +45,9 @@ package() { make DESTDIR="$pkgdir" install || return 1 } -md5sums="ffac352f9c5f80a6ae8145d451af2c0e jansson-2.7.tar.bz2" -sha256sums="459f2b7cf22fb676286723f26169a17cf111fbfb6f54e3dc2ec6b6f9f4a97bdc jansson-2.7.tar.bz2" -sha512sums="f45861f1962e2a299cb657213f6dc5b0d560b8c7c13476bd722215bd1a91295ad63a86afc20db7b3ae0d95ac8018f62bb7e52eaea38c3295a9a8016da3a8f1aa jansson-2.7.tar.bz2" +md5sums="ffac352f9c5f80a6ae8145d451af2c0e jansson-2.7.tar.bz2 +dc190cd37c6f7a455d6f9c309393aaf6 CVE-2016-4425.patch" +sha256sums="459f2b7cf22fb676286723f26169a17cf111fbfb6f54e3dc2ec6b6f9f4a97bdc jansson-2.7.tar.bz2 +4b653901fdcf49c2ae6829619ed7b006744c346392cb5a0792ba2b65c19b366e CVE-2016-4425.patch" +sha512sums="f45861f1962e2a299cb657213f6dc5b0d560b8c7c13476bd722215bd1a91295ad63a86afc20db7b3ae0d95ac8018f62bb7e52eaea38c3295a9a8016da3a8f1aa jansson-2.7.tar.bz2 +919dd53f8a110f9825dc7f64ececc5da8e0b0b387201e1b8ba15a7d35fc4f94b0195ff6159fa364013f07b60ed15b80208b73230b748dfb301dc505dc586291e CVE-2016-4425.patch" diff --git a/main/jansson/CVE-2016-4425.patch b/main/jansson/CVE-2016-4425.patch new file mode 100644 index 0000000000..9c2087bea8 --- /dev/null +++ b/main/jansson/CVE-2016-4425.patch @@ -0,0 +1,138 @@ +From 64ce0ad3731ebd77e02897b07920eadd0e2cc318 Mon Sep 17 00:00:00 2001 +From: Dmitry Janushkevich <gauri@tut.by> +Date: Mon, 2 May 2016 13:59:26 +0200 +Subject: [PATCH] Fix for issue #282 + +The fix limits recursion depths when parsing arrays and objects. +The limit is configurable via the `JSON_PARSER_MAX_DEPTH` setting +within `jansson_config.h` and is set by default to 2048. + +Update the RFC conformance document to note the limit; the RFC +allows limits to be set by the implementation so nothing has +actually changed w.r.t. conformance state. + +Reported by Gustavo Grieco. +--- + android/jansson_config.h | 4 ++++ + cmake/jansson_config.h.cmake | 4 ++++ + doc/conformance.rst | 10 ++++++++++ + src/jansson_config.h.in | 4 ++++ + src/load.c | 10 ++++++++++ + test/suites/invalid/recursion-depth/error | 2 ++ + test/suites/invalid/recursion-depth/input | 1 + + 7 files changed, 35 insertions(+) + create mode 100644 test/suites/invalid/recursion-depth/error + create mode 100644 test/suites/invalid/recursion-depth/input + +diff --git a/android/jansson_config.h b/android/jansson_config.h +index 0a313a0..689f7ed 100644 +--- a/android/jansson_config.h ++++ b/android/jansson_config.h +@@ -36,4 +36,8 @@ + otherwise to 0. */ + #define JSON_HAVE_LOCALECONV 0 + ++/* Maximum recursion depth for parsing JSON input. ++ This limits the depth of e.g. array-within-array constructions. */ ++#define JSON_PARSER_MAX_DEPTH 2048 ++ + #endif +diff --git a/cmake/jansson_config.h.cmake b/cmake/jansson_config.h.cmake +index 43e36c5..4a32148 100644 +--- a/cmake/jansson_config.h.cmake ++++ b/cmake/jansson_config.h.cmake +@@ -60,5 +60,9 @@ + #define JSON_HAVE_LOCALECONV @JSON_HAVE_LOCALECONV@ + + ++/* Maximum recursion depth for parsing JSON input. ++ This limits the depth of e.g. array-within-array constructions. */ ++#define JSON_PARSER_MAX_DEPTH 2048 ++ + + #endif +diff --git a/doc/conformance.rst b/doc/conformance.rst +index de3947d..ea41d5c 100644 +--- a/doc/conformance.rst ++++ b/doc/conformance.rst +@@ -108,3 +108,13 @@ types, ``long double``, etc. Obviously, shorter types like ``short``, + are implicitly handled via the ordinary C type coercion rules (subject + to overflow semantics). Also, no support or hooks are provided for any + supplemental "bignum" type add-on packages. ++ ++Depth of nested values ++---------------------- ++ ++To avoid stack exhaustion, Jansson currently limits the nesting depth ++for arrays and objects to a certain value (default: 2048), defined as ++a macro ``JSON_PARSER_MAX_DEPTH`` within ``jansson_config.h``. ++ ++The limit is allowed to be set by the RFC; there is no recommended value ++or required minimum depth to be supported. +diff --git a/src/jansson_config.h.in b/src/jansson_config.h.in +index 12580a0..aa02160 100644 +--- a/src/jansson_config.h.in ++++ b/src/jansson_config.h.in +@@ -36,4 +36,8 @@ + otherwise to 0. */ + #define JSON_HAVE_LOCALECONV @json_have_localeconv@ + ++/* Maximum recursion depth for parsing JSON input. ++ This limits the depth of e.g. array-within-array constructions. */ ++#define JSON_PARSER_MAX_DEPTH 2048 ++ + #endif +diff --git a/test/suites/invalid/recursion-depth/error b/test/suites/invalid/recursion-depth/error +new file mode 100644 +index 0000000..11e0537 +--- /dev/null ++++ b/test/suites/invalid/recursion-depth/error +@@ -0,0 +1,2 @@ ++1 2049 2049 ++maximum parsing depth reached near '[' +diff --git a/test/suites/invalid/recursion-depth/input b/test/suites/invalid/recursion-depth/input +new file mode 100644 +index 0000000..bfa47d9 +--- /dev/null ++++ b/test/suites/invalid/recursion-depth/input +@@ -0,0 +1 @@ ++[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[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[[ +--- ./src/load.c.orig ++++ ./src/load.c +@@ -61,6 +61,7 @@ + typedef struct { + stream_t stream; + strbuffer_t saved_text; ++ size_t depth; + int token; + union { + struct { +@@ -800,6 +801,12 @@ + json_t *json; + double value; + ++ lex->depth++; ++ if(lex->depth > JSON_PARSER_MAX_DEPTH) { ++ error_set(error, lex, "maximum parsing depth reached"); ++ return NULL; ++ } ++ + switch(lex->token) { + case TOKEN_STRING: { + const char *value = lex->value.string.val; +@@ -870,12 +877,15 @@ + if(!json) + return NULL; + ++ lex->depth--; + return json; + } + + static json_t *parse_json(lex_t *lex, size_t flags, json_error_t *error) + { + json_t *result; ++ ++ lex->depth = 0; + + lex_scan(lex, error); + if(!(flags & JSON_DECODE_ANY)) { |