Upstream Repository: https://github.com/curl/curl.git
Bug Details: https://nvd.nist.gov/vuln/detail/CVE-2023-38039 Type: Security Fix CVE: CVE-2023-38039 Score: 7.5 Patch: https://github.com/curl/curl/commit/3ee79c1674fd6f9 Signed-off-by: Deepak Rathore <[email protected]> diff --git a/meta/recipes-support/curl/curl/CVE-2023-38039.patch b/meta/recipes-support/curl/curl/CVE-2023-38039.patch new file mode 100644 index 0000000000..cdf8612274 --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2023-38039.patch @@ -0,0 +1,204 @@ +From d942d0a479c428a2aa6981d576307568042c3a97 Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <[email protected]> +Date: Wed, 2 Aug 2023 23:34:48 +0200 +Subject: [PATCH] http: return error when receiving too large header set + +To avoid abuse. The limit is set to 300 KB for the accumulated size of +all received HTTP headers for a single response. Incomplete research +suggests that Chrome uses a 256-300 KB limit, while Firefox allows up to +1MB. + +Closes #11582 + +CVE: CVE-2023-38039 +Upstream-Status: Backport +[https://github.com/curl/curl/commit/3ee79c1674fd6f9] + +Backport Changes: +Dropped the changes of lib/cf-h1-proxy.c file as this file is not +present in current version of curl and added in curl from curl-8_1_0 +version with below commit: +https://github.com/curl/curl/commit/4ae2d9f24 + +(cherry picked from commit 3ee79c1674fd6f99e8efca52cd7510e08b766770) +Signed-off-by: Deepak Rathore <[email protected]> + +diff --git a/lib/c-hyper.c b/lib/c-hyper.c +index 9c7632d35..28f64ef97 100644 +--- a/lib/c-hyper.c ++++ b/lib/c-hyper.c +@@ -174,8 +174,11 @@ static int hyper_each_header(void *userdata, + } + } + +- data->info.header_size += (curl_off_t)len; +- data->req.headerbytecount += (curl_off_t)len; ++ result = Curl_bump_headersize(data, len, FALSE); ++ if(result) { ++ data->state.hresult = result; ++ return HYPER_ITER_BREAK; ++ } + return HYPER_ITER_CONTINUE; + } + +@@ -305,9 +308,8 @@ static CURLcode status_line(struct Curl_easy *data, + if(result) + return result; + } +- data->info.header_size += (curl_off_t)len; +- data->req.headerbytecount += (curl_off_t)len; +- return CURLE_OK; ++ result = Curl_bump_headersize(data, len, FALSE); ++ return result; + } + + /* +diff --git a/lib/http.c b/lib/http.c +index 400d2b081..d8c3e1eda 100644 +--- a/lib/http.c ++++ b/lib/http.c +@@ -3760,6 +3760,29 @@ static CURLcode verify_header(struct Curl_easy *data) + return CURLE_OK; + } + ++CURLcode Curl_bump_headersize(struct Curl_easy *data, ++ size_t delta, ++ bool connect_only) ++{ ++ size_t bad = 0; ++ if(delta < MAX_HTTP_RESP_HEADER_SIZE) { ++ if(!connect_only) ++ data->req.headerbytecount += (unsigned int)delta; ++ data->info.header_size += (unsigned int)delta; ++ if(data->info.header_size > MAX_HTTP_RESP_HEADER_SIZE) ++ bad = data->info.header_size; ++ } ++ else ++ bad = data->info.header_size + delta; ++ if(bad) { ++ failf(data, "Too large response headers: %zu > %zu", ++ bad, MAX_HTTP_RESP_HEADER_SIZE); ++ return CURLE_RECV_ERROR; ++ } ++ return CURLE_OK; ++} ++ ++ + /* + * Read any HTTP header lines from the server and pass them to the client app. + */ +@@ -4007,8 +4030,9 @@ CURLcode Curl_http_readwrite_headers(struct Curl_easy *data, + if(result) + return result; + +- data->info.header_size += (long)headerlen; +- data->req.headerbytecount += (long)headerlen; ++ result = Curl_bump_headersize(data, headerlen, FALSE); ++ if(result) ++ return result; + + /* + * When all the headers have been parsed, see if we should give +@@ -4330,8 +4354,10 @@ CURLcode Curl_http_readwrite_headers(struct Curl_easy *data, + if(result) + return result; + +- data->info.header_size += Curl_dyn_len(&data->state.headerb); +- data->req.headerbytecount += Curl_dyn_len(&data->state.headerb); ++ result = Curl_bump_headersize(data, Curl_dyn_len(&data->state.headerb), ++ FALSE); ++ if(result) ++ return result; + + Curl_dyn_reset(&data->state.headerb); + } +diff --git a/lib/http.h b/lib/http.h +index 444abc0be..b29f3b84f 100644 +--- a/lib/http.h ++++ b/lib/http.h +@@ -61,6 +61,10 @@ extern const struct Curl_handler Curl_handler_wss; + #endif /* websockets */ + + ++CURLcode Curl_bump_headersize(struct Curl_easy *data, ++ size_t delta, ++ bool connect_only); ++ + /* Header specific functions */ + bool Curl_compareheader(const char *headerline, /* line to check */ + const char *header, /* header keyword _with_ colon */ +@@ -176,6 +180,11 @@ CURLcode Curl_http_auth_act(struct Curl_easy *data); + #define EXPECT_100_THRESHOLD (1024*1024) + #endif + ++/* MAX_HTTP_RESP_HEADER_SIZE is the maximum size of all response headers ++ combined that libcurl allows for a single HTTP response, any HTTP ++ version. This count includes CONNECT response headers. */ ++#define MAX_HTTP_RESP_HEADER_SIZE (300*1024) ++ + #endif /* CURL_DISABLE_HTTP */ + + #ifdef USE_NGHTTP3 +diff --git a/lib/pingpong.c b/lib/pingpong.c +index 2f4aa1c34..189a0b68e 100644 +--- a/lib/pingpong.c ++++ b/lib/pingpong.c +@@ -341,7 +341,9 @@ CURLcode Curl_pp_readresp(struct Curl_easy *data, + ssize_t clipamount = 0; + bool restart = FALSE; + +- data->req.headerbytecount += (long)gotbytes; ++ result = Curl_bump_headersize(data, gotbytes, FALSE); ++ if(result) ++ return result; + + pp->nread_resp += gotbytes; + for(i = 0; i < gotbytes; ptr++, i++) { +diff --git a/lib/urldata.h b/lib/urldata.h +index f3e782ad3..390c611e2 100644 +--- a/lib/urldata.h ++++ b/lib/urldata.h +@@ -619,17 +619,16 @@ struct SingleRequest { + curl_off_t bytecount; /* total number of bytes read */ + curl_off_t writebytecount; /* number of bytes written */ + +- curl_off_t headerbytecount; /* only count received headers */ +- curl_off_t deductheadercount; /* this amount of bytes doesn't count when we +- check if anything has been transferred at +- the end of a connection. We use this +- counter to make only a 100 reply (without a +- following second response code) result in a +- CURLE_GOT_NOTHING error code */ +- + curl_off_t pendingheader; /* this many bytes left to send is actually + header and not body */ + struct curltime start; /* transfer started at this time */ ++ unsigned int headerbytecount; /* only count received headers */ ++ unsigned int deductheadercount; /* this amount of bytes doesn't count when ++ we check if anything has been transferred ++ at the end of a connection. We use this ++ counter to make only a 100 reply (without ++ a following second response code) result ++ in a CURLE_GOT_NOTHING error code */ + enum { + HEADER_NORMAL, /* no bad header at all */ + HEADER_PARTHEADER, /* part of the chunk is a bad header, the rest +@@ -1076,7 +1075,6 @@ struct PureInfo { + int httpversion; /* the http version number X.Y = X*10+Y */ + time_t filetime; /* If requested, this is might get set. Set to -1 if the + time was unretrievable. */ +- curl_off_t header_size; /* size of read header(s) in bytes */ + curl_off_t request_size; /* the amount of bytes sent in the request(s) */ + unsigned long proxyauthavail; /* what proxy auth types were announced */ + unsigned long httpauthavail; /* what host auth types were announced */ +@@ -1084,6 +1082,7 @@ struct PureInfo { + char *contenttype; /* the content type of the object */ + char *wouldredirect; /* URL this would've been redirected to if asked to */ + curl_off_t retry_after; /* info from Retry-After: header */ ++ unsigned int header_size; /* size of read header(s) in bytes */ + + /* PureInfo members 'conn_primary_ip', 'conn_primary_port', 'conn_local_ip' + and, 'conn_local_port' are copied over from the connectdata struct in +-- +2.33.0 + diff --git a/meta/recipes-support/curl/curl_8.0.1.bb b/meta/recipes-support/curl/curl_8.0.1.bb index 375b4d2f93..04da092ee9 100644 --- a/meta/recipes-support/curl/curl_8.0.1.bb +++ b/meta/recipes-support/curl/curl_8.0.1.bb @@ -21,6 +21,7 @@ SRC_URI = " \ file://CVE-2023-28320-fol1.patch \ file://CVE-2023-38545.patch \ file://CVE-2023-38546.patch \ + file://CVE-2023-38039.patch \ " SRC_URI[sha256sum] = "0a381cd82f4d00a9a334438b8ca239afea5bfefcfa9a1025f2bf118e79e0b5f0" -- 2.35.6
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