diff options
Diffstat (limited to 'gnu/packages/patches/http-parser-CVE-2020-8287.patch')
| -rw-r--r-- | gnu/packages/patches/http-parser-CVE-2020-8287.patch | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gnu/packages/patches/http-parser-CVE-2020-8287.patch b/gnu/packages/patches/http-parser-CVE-2020-8287.patch new file mode 100644 index 0000000000..580f773099 --- /dev/null +++ b/gnu/packages/patches/http-parser-CVE-2020-8287.patch @@ -0,0 +1,75 @@ +From fc70ce08f5818a286fb5899a1bc3aff5965a745e Mon Sep 17 00:00:00 2001 +From: Fedor Indutny <fedor@indutny.com> +Date: Wed, 18 Nov 2020 20:50:21 -0800 +Subject: [PATCH] http: unset `F_CHUNKED` on new `Transfer-Encoding` + +Duplicate `Transfer-Encoding` header should be a treated as a single, +but with original header values concatenated with a comma separator. In +the light of this, even if the past `Transfer-Encoding` ended with +`chunked`, we should be not let the `F_CHUNKED` to leak into the next +header, because mere presence of another header indicates that `chunked` +is not the last transfer-encoding token. + +CVE-ID: CVE-2020-8287 +PR-URL: https://github.com/nodejs-private/node-private/pull/235 +Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com> +--- + http_parser.c | 7 +++++++ + test.c | 26 ++++++++++++++++++++++++++ + 2 files changed, 33 insertions(+) + +diff --git a/http_parser.c b/http_parser.c +index 9be003e7322..e9b2b9e83b9 100644 +--- a/http_parser.c ++++ b/http_parser.c +@@ -1344,6 +1344,13 @@ size_t http_parser_execute (http_parser *parser, + } else if (parser->index == sizeof(TRANSFER_ENCODING)-2) { + parser->header_state = h_transfer_encoding; + parser->uses_transfer_encoding = 1; ++ ++ /* Multiple `Transfer-Encoding` headers should be treated as ++ * one, but with values separate by a comma. ++ * ++ * See: https://tools.ietf.org/html/rfc7230#section-3.2.2 ++ */ ++ parser->flags &= ~F_CHUNKED; + } + break; + +diff --git a/test.c b/test.c +index 3f7c77b3494..2e5a9ebd678 100644 +--- a/test.c ++++ b/test.c +@@ -2154,6 +2154,32 @@ const struct message responses[] = + ,.body= "2\r\nOK\r\n0\r\n\r\n" + ,.num_chunks_complete= 0 + } ++#define HTTP_200_DUPLICATE_TE_NOT_LAST_CHUNKED 30 ++, {.name= "HTTP 200 response with `chunked` and duplicate Transfer-Encoding" ++ ,.type= HTTP_RESPONSE ++ ,.raw= "HTTP/1.1 200 OK\r\n" ++ "Transfer-Encoding: chunked\r\n" ++ "Transfer-Encoding: identity\r\n" ++ "\r\n" ++ "2\r\n" ++ "OK\r\n" ++ "0\r\n" ++ "\r\n" ++ ,.should_keep_alive= FALSE ++ ,.message_complete_on_eof= TRUE ++ ,.http_major= 1 ++ ,.http_minor= 1 ++ ,.status_code= 200 ++ ,.response_status= "OK" ++ ,.content_length= -1 ++ ,.num_headers= 2 ++ ,.headers= ++ { { "Transfer-Encoding", "chunked" } ++ , { "Transfer-Encoding", "identity" } ++ } ++ ,.body= "2\r\nOK\r\n0\r\n\r\n" ++ ,.num_chunks_complete= 0 ++ } + }; + + /* strnlen() is a POSIX.2008 addition. Can't rely on it being available so |