]> www.infradead.org Git - users/dwmw2/openwrt.git/commitdiff
curl: fix some security problems
authorHauke Mehrtens <hauke@hauke-m.de>
Fri, 10 Aug 2018 19:39:06 +0000 (21:39 +0200)
committerHauke Mehrtens <hauke@hauke-m.de>
Fri, 10 Aug 2018 20:56:31 +0000 (22:56 +0200)
This fixes the following security problems:
* CVE-2017-1000254: FTP PWD response parser out of bounds read
* CVE-2017-1000257: IMAP FETCH response out of bounds read
* CVE-2018-1000005: HTTP/2 trailer out-of-bounds read
* CVE-2018-1000007: HTTP authentication leak in redirects
* CVE-2018-1000120: FTP path trickery leads to NIL byte out of bounds write
* CVE-2018-1000121: LDAP NULL pointer dereference
* CVE-2018-1000122: RTSP RTP buffer over-read
* CVE-2018-1000301: RTSP bad headers buffer over-read

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
12 files changed:
package/network/utils/curl/Makefile
package/network/utils/curl/patches/105-CVE-2017-1000254.patch [new file with mode: 0644]
package/network/utils/curl/patches/107-CVE-2017-1000257.patch [new file with mode: 0644]
package/network/utils/curl/patches/107-CVE-2017-8816.patch [moved from package/network/utils/curl/patches/105-CVE-2017-8816.patch with 73% similarity]
package/network/utils/curl/patches/108-CVE-2017-8817.patch [moved from package/network/utils/curl/patches/106-CVE-2017-8817.patch with 71% similarity]
package/network/utils/curl/patches/109-CVE-2018-1000005.patch [new file with mode: 0644]
package/network/utils/curl/patches/110-CVE-2018-1000007.patch [new file with mode: 0644]
package/network/utils/curl/patches/111-CVE-2018-1000120.patch [new file with mode: 0644]
package/network/utils/curl/patches/112-CVE-2018-1000121.patch [new file with mode: 0644]
package/network/utils/curl/patches/113-CVE-2018-1000122.patch [new file with mode: 0644]
package/network/utils/curl/patches/114-CVE-2018-1000301.patch [new file with mode: 0644]
package/network/utils/curl/patches/320-mbedtls-nonblocking-handshake.patch

index a0abf2a85df0f7902feaad523fd0c42cc7f72b1b..fed5bac099b2105c78794c71b9ac98ed3fac306d 100644 (file)
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=curl
 PKG_VERSION:=7.52.1
-PKG_RELEASE:=9
+PKG_RELEASE:=10
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=http://curl.haxx.se/download/ \
diff --git a/package/network/utils/curl/patches/105-CVE-2017-1000254.patch b/package/network/utils/curl/patches/105-CVE-2017-1000254.patch
new file mode 100644 (file)
index 0000000..56b0235
--- /dev/null
@@ -0,0 +1,49 @@
+From 29b251362e1839d7094993edbed8f9467069773f Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Mon, 25 Sep 2017 00:35:22 +0200
+Subject: [PATCH] FTP: zero terminate the entry path even on bad input
+
+... a single double quote could leave the entry path buffer without a zero
+terminating byte. CVE-2017-1000254
+
+Test 1152 added to verify.
+
+Reported-by: Max Dymond
+Bug: https://curl.haxx.se/docs/adv_20171004.html
+---
+ lib/ftp.c               |  7 ++++--
+ tests/data/Makefile.inc |  1 +
+ tests/data/test1152     | 61 +++++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 67 insertions(+), 2 deletions(-)
+ create mode 100644 tests/data/test1152
+
+--- a/lib/ftp.c
++++ b/lib/ftp.c
+@@ -2825,6 +2825,7 @@ static CURLcode ftp_statemach_act(struct
+         char *ptr=&data->state.buffer[4];  /* start on the first letter */
+         char *dir;
+         char *store;
++        bool entry_extracted = FALSE;
+         dir = malloc(nread + 1);
+         if(!dir)
+@@ -2856,7 +2857,7 @@ static CURLcode ftp_statemach_act(struct
+               }
+               else {
+                 /* end of path */
+-                *store = '\0'; /* zero terminate */
++                entry_extracted = TRUE;
+                 break; /* get out of this loop */
+               }
+             }
+@@ -2865,7 +2866,9 @@ static CURLcode ftp_statemach_act(struct
+             store++;
+             ptr++;
+           }
+-
++          *store = '\0'; /* zero terminate */
++        }
++        if(entry_extracted) {
+           /* If the path name does not look like an absolute path (i.e.: it
+              does not start with a '/'), we probably need some server-dependent
+              adjustments. For example, this is the case when connecting to
diff --git a/package/network/utils/curl/patches/107-CVE-2017-1000257.patch b/package/network/utils/curl/patches/107-CVE-2017-1000257.patch
new file mode 100644 (file)
index 0000000..7baaa75
--- /dev/null
@@ -0,0 +1,28 @@
+From 13c9a9ded3ae744a1e11cbc14e9146d9fa427040 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Sat, 7 Oct 2017 00:11:31 +0200
+Subject: [PATCH] imap: if a FETCH response has no size, don't call write
+ callback
+
+CVE-2017-1000257
+
+Reported-by: Brian Carpenter and 0xd34db347
+Also detected by OSS-Fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3586
+---
+ lib/imap.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/lib/imap.c
++++ b/lib/imap.c
+@@ -1140,6 +1140,11 @@ static CURLcode imap_state_fetch_resp(st
+         /* The conversion from curl_off_t to size_t is always fine here */
+         chunk = (size_t)size;
++      if(!chunk) {
++        /* no size, we're done with the data */
++        state(conn, IMAP_STOP);
++        return CURLE_OK;
++      }
+       result = Curl_client_write(conn, CLIENTWRITE_BODY, pp->cache, chunk);
+       if(result)
+         return result;
similarity index 73%
rename from package/network/utils/curl/patches/105-CVE-2017-8816.patch
rename to package/network/utils/curl/patches/107-CVE-2017-8816.patch
index 4d2b3162a82aa05c6dda1eba38b0b01076b9fb0c..27775b0d8112e46b71639a40f2e1b0f39d0e190a 100644 (file)
@@ -13,13 +13,9 @@ Bug: https://curl.haxx.se/docs/adv_2017-11e7.html
  lib/curl_ntlm_core.c | 23 +++++++++++++++++++++--
  1 file changed, 21 insertions(+), 2 deletions(-)
 
-diff --git a/lib/curl_ntlm_core.c b/lib/curl_ntlm_core.c
-index 1309bf0d9..e8962769c 100644
 --- a/lib/curl_ntlm_core.c
 +++ b/lib/curl_ntlm_core.c
-@@ -616,23 +616,42 @@ CURLcode Curl_hmac_md5(const unsigned char *key, unsigned int keylen,
-   Curl_HMAC_final(ctxt, output);
+@@ -618,6 +618,15 @@ CURLcode Curl_hmac_md5(const unsigned ch
    return CURLE_OK;
  }
  
@@ -35,9 +31,7 @@ index 1309bf0d9..e8962769c 100644
  /* This creates the NTLMv2 hash by using NTLM hash as the key and Unicode
   * (uppercase UserName + Domain) as the data
   */
- CURLcode Curl_ntlm_core_mk_ntlmv2_hash(const char *user, size_t userlen,
-                                        const char *domain, size_t domlen,
-                                        unsigned char *ntlmhash,
+@@ -627,10 +636,20 @@ CURLcode Curl_ntlm_core_mk_ntlmv2_hash(c
                                         unsigned char *ntlmv2hash)
  {
    /* Unicode representation */
@@ -60,8 +54,3 @@ index 1309bf0d9..e8962769c 100644
    if(!identity)
      return CURLE_OUT_OF_MEMORY;
  
-   ascii_uppercase_to_unicode_le(identity, user, userlen);
-   ascii_to_unicode_le(identity + (userlen << 1), domain, domlen);
--- 
-2.15.0
-
similarity index 71%
rename from package/network/utils/curl/patches/106-CVE-2017-8817.patch
rename to package/network/utils/curl/patches/108-CVE-2017-8817.patch
index 9e904f0b4016f4169797161500dacef7e6c30bb3..4b7e79cc29a784c32128bdfdf42755f5030b7c07 100644 (file)
@@ -20,13 +20,9 @@ Bug: https://curl.haxx.se/docs/adv_2017-ae72.html
  3 files changed, 56 insertions(+), 7 deletions(-)
  create mode 100644 tests/data/test1163
 
-diff --git a/lib/curl_fnmatch.c b/lib/curl_fnmatch.c
-index da83393b4..8a1e106c4 100644
 --- a/lib/curl_fnmatch.c
 +++ b/lib/curl_fnmatch.c
-@@ -131,10 +131,13 @@ static int setcharset(unsigned char **p, unsigned char *charset)
-   unsigned char lastchar   = 0;
-   bool something_found = FALSE;
+@@ -133,6 +133,9 @@ static int setcharset(unsigned char **p,
    unsigned char c;
    for(;;) {
      c = **p;
@@ -36,11 +32,7 @@ index da83393b4..8a1e106c4 100644
      switch(state) {
      case CURLFNM_SCHS_DEFAULT:
        if(ISALNUM(c)) { /* ASCII value */
-         rangestart = c;
-         charset[c] = 1;
-@@ -195,13 +198,10 @@ static int setcharset(unsigned char **p, unsigned char *charset)
-           (*p)++;
-         }
+@@ -197,9 +200,6 @@ static int setcharset(unsigned char **p,
          else
            return SETCHARSET_FAIL;
        }
@@ -50,11 +42,7 @@ index da83393b4..8a1e106c4 100644
        else {
          charset[c] = 1;
          (*p)++;
-         something_found = TRUE;
-       }
-@@ -276,13 +276,10 @@ static int setcharset(unsigned char **p, unsigned char *charset)
-         (*p)++;
-       }
+@@ -278,9 +278,6 @@ static int setcharset(unsigned char **p,
        else if(c == ']') {
          return SETCHARSET_OK;
        }
@@ -64,13 +52,9 @@ index da83393b4..8a1e106c4 100644
        else if(ISPRINT(c)) {
          charset[c] = 1;
          (*p)++;
-         state = CURLFNM_SCHS_DEFAULT;
-       }
-diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
-index dc1cc03bc..6eb37d81d 100644
---- a/tests/data/Makefile.inc.1        2017-11-29 20:00:26.126452486 +0000
-+++ b/tests/data/Makefile.inc  2017-11-29 20:01:13.057783732 +0000
-@@ -121,6 +121,7 @@
+--- a/tests/data/Makefile.inc
++++ b/tests/data/Makefile.inc
+@@ -121,6 +121,7 @@ test1120 test1121 test1122 test1123 test
  test1128 test1129 test1130 test1131 test1132 test1133 test1134 test1135 \
  test1136 test1137 test1138 test1139 test1140 test1141 test1142 test1143 \
  test1144 \
@@ -78,9 +62,6 @@ index dc1cc03bc..6eb37d81d 100644
  test1200 test1201 test1202 test1203 test1204 test1205 test1206 test1207 \
  test1208 test1209 test1210 test1211 test1212 test1213 test1214 test1215 \
  test1216 test1217 test1218 test1219 \
-diff --git a/tests/data/test1163 b/tests/data/test1163
-new file mode 100644
-index 000000000..a109b511b
 --- /dev/null
 +++ b/tests/data/test1163
 @@ -0,0 +1,52 @@
@@ -136,6 +117,3 @@ index 000000000..a109b511b
 +</errorcode>
 +</verify>
 +</testcase>
--- 
-2.15.0
-
diff --git a/package/network/utils/curl/patches/109-CVE-2018-1000005.patch b/package/network/utils/curl/patches/109-CVE-2018-1000005.patch
new file mode 100644 (file)
index 0000000..76d0ea7
--- /dev/null
@@ -0,0 +1,34 @@
+From fa3dbb9a147488a2943bda809c66fc497efe06cb Mon Sep 17 00:00:00 2001
+From: Zhouyihai Ding <ddyihai@ddyihai.svl.corp.google.com>
+Date: Wed, 10 Jan 2018 10:12:18 -0800
+Subject: [PATCH] http2: fix incorrect trailer buffer size
+
+Prior to this change the stored byte count of each trailer was
+miscalculated and 1 less than required. It appears any trailer
+after the first that was passed to Curl_client_write would be truncated
+or corrupted as well as the size. Potentially the size of some
+subsequent trailer could be erroneously extracted from the contents of
+that trailer, and since that size is used by client write an
+out-of-bounds read could occur and cause a crash or be otherwise
+processed by client write.
+
+The bug appears to have been born in 0761a51 (precedes 7.49.0).
+
+Closes https://github.com/curl/curl/pull/2231
+---
+ lib/http2.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/lib/http2.c
++++ b/lib/http2.c
+@@ -864,8 +864,8 @@ static int on_header(nghttp2_session *se
+   if(stream->bodystarted) {
+     /* This is trailer fields. */
+-    /* 3 is for ":" and "\r\n". */
+-    uint32_t n = (uint32_t)(namelen + valuelen + 3);
++    /* 4 is for ": " and "\r\n". */
++    uint32_t n = (uint32_t)(namelen + valuelen + 4);
+     DEBUGF(infof(data_s, "h2 trailer: %.*s: %.*s\n", namelen, name, valuelen,
+                  value));
diff --git a/package/network/utils/curl/patches/110-CVE-2018-1000007.patch b/package/network/utils/curl/patches/110-CVE-2018-1000007.patch
new file mode 100644 (file)
index 0000000..5387a59
--- /dev/null
@@ -0,0 +1,102 @@
+From af32cd3859336ab963591ca0df9b1e33a7ee066b Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Fri, 19 Jan 2018 13:19:25 +0100
+Subject: [PATCH] http: prevent custom Authorization headers in redirects
+
+... unless CURLOPT_UNRESTRICTED_AUTH is set to allow them. This matches how
+curl already handles Authorization headers created internally.
+
+Note: this changes behavior slightly, for the sake of reducing mistakes.
+
+Added test 317 and 318 to verify.
+
+Reported-by: Craig de Stigter
+Bug: https://curl.haxx.se/docs/adv_2018-b3bf.html
+---
+ docs/libcurl/opts/CURLOPT_HTTPHEADER.3 | 12 +++-
+ lib/http.c                             | 10 ++-
+ lib/setopt.c                           |  2 +-
+ lib/urldata.h                          |  2 +-
+ tests/data/Makefile.inc                |  2 +-
+ tests/data/test317                     | 94 +++++++++++++++++++++++++
+ tests/data/test318                     | 95 ++++++++++++++++++++++++++
+ 7 files changed, 212 insertions(+), 5 deletions(-)
+ create mode 100644 tests/data/test317
+ create mode 100644 tests/data/test318
+
+--- a/docs/libcurl/opts/CURLOPT_HTTPHEADER.3
++++ b/docs/libcurl/opts/CURLOPT_HTTPHEADER.3
+@@ -5,7 +5,7 @@
+ .\" *                            | (__| |_| |  _ <| |___
+ .\" *                             \___|\___/|_| \_\_____|
+ .\" *
+-.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
++.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
+ .\" *
+ .\" * This software is licensed as described in the file COPYING, which
+ .\" * you should have received as part of this distribution. The terms
+@@ -77,6 +77,16 @@ the headers. They may be private or othe
+ Use \fICURLOPT_HEADEROPT(3)\fP to make the headers only get sent to where you
+ intend them to get sent.
++
++Custom headers are sent in all requests done by the easy handles, which
++implies that if you tell libcurl to follow redirects
++(\fBCURLOPT_FOLLOWLOCATION(3)\fP), the same set of custom headers will be sent
++in the subsequent request. Redirects can of course go to other hosts and thus
++those servers will get all the contents of your custom headers too.
++
++Starting in 7.58.0, libcurl will specifically prevent "Authorization:" headers
++from being sent to other hosts than the first used one, unless specifically
++permitted with the \fBCURLOPT_UNRESTRICTED_AUTH(3)\fP option.
+ .SH DEFAULT
+ NULL
+ .SH PROTOCOLS
+--- a/lib/http.c
++++ b/lib/http.c
+@@ -725,7 +725,7 @@ Curl_http_output_auth(struct connectdata
+   if(!data->state.this_is_a_follow ||
+      conn->bits.netrc ||
+      !data->state.first_host ||
+-     data->set.http_disable_hostname_check_before_authentication ||
++     data->set.allow_auth_to_other_hosts ||
+      strcasecompare(data->state.first_host, conn->host.name)) {
+     result = output_auth_headers(conn, authhost, request, path, FALSE);
+   }
+@@ -1624,6 +1624,14 @@ CURLcode Curl_add_custom_headers(struct
+                   checkprefix("Transfer-Encoding:", headers->data))
+             /* HTTP/2 doesn't support chunked requests */
+             ;
++          else if(checkprefix("Authorization:", headers->data) &&
++                  /* be careful of sending this potentially sensitive header to
++                     other hosts */
++                  (data->state.this_is_a_follow &&
++                   data->state.first_host &&
++                   !data->set.allow_auth_to_other_hosts &&
++                   !strcasecompare(data->state.first_host, conn->host.name)))
++            ;
+           else {
+             CURLcode result = Curl_add_bufferf(req_buffer, "%s\r\n",
+                                                headers->data);
+--- a/lib/url.c
++++ b/lib/url.c
+@@ -972,7 +972,7 @@ CURLcode Curl_setopt(struct Curl_easy *d
+      * Send authentication (user+password) when following locations, even when
+      * hostname changed.
+      */
+-    data->set.http_disable_hostname_check_before_authentication =
++    data->set.allow_auth_to_other_hosts =
+       (0 != va_arg(param, long)) ? TRUE : FALSE;
+     break;
+--- a/lib/urldata.h
++++ b/lib/urldata.h
+@@ -1675,7 +1675,7 @@ struct UserDefined {
+   bool http_keep_sending_on_error; /* for HTTP status codes >= 300 */
+   bool http_follow_location; /* follow HTTP redirects */
+   bool http_transfer_encoding; /* request compressed HTTP transfer-encoding */
+-  bool http_disable_hostname_check_before_authentication;
++  bool allow_auth_to_other_hosts;
+   bool include_header;   /* include received protocol headers in data output */
+   bool http_set_referer; /* is a custom referer used */
+   bool http_auto_referer; /* set "correct" referer when following location: */
diff --git a/package/network/utils/curl/patches/111-CVE-2018-1000120.patch b/package/network/utils/curl/patches/111-CVE-2018-1000120.patch
new file mode 100644 (file)
index 0000000..86b82b4
--- /dev/null
@@ -0,0 +1,53 @@
+From a6ae0fbe9c50733e0f645f5bd16e1db38c592c3d Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Wed, 31 Jan 2018 08:40:11 +0100
+Subject: [PATCH] FTP: reject path components with control codes
+
+Refuse to operate when given path components featuring byte values lower
+than 32.
+
+Previously, inserting a %00 sequence early in the directory part when
+using the 'singlecwd' ftp method could make curl write a zero byte
+outside of the allocated buffer.
+
+Test case 340 verifies.
+
+CVE-2018-1000120
+Reported-by: Duy Phan Thanh
+Bug: https://curl.haxx.se/docs/adv_2018-9cd6.html
+---
+ lib/ftp.c               |  8 ++++----
+ tests/data/Makefile.inc |  3 +++
+ tests/data/test340      | 40 ++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 47 insertions(+), 4 deletions(-)
+ create mode 100644 tests/data/test340
+
+--- a/lib/ftp.c
++++ b/lib/ftp.c
+@@ -3235,7 +3235,7 @@ static CURLcode ftp_done(struct connectd
+   if(!result)
+     /* get the "raw" path */
+-    result = Curl_urldecode(data, path_to_use, 0, &path, NULL, FALSE);
++    result = Curl_urldecode(data, path_to_use, 0, &path, NULL, TRUE);
+   if(result) {
+     /* We can limp along anyway (and should try to since we may already be in
+      * the error path) */
+@@ -4241,7 +4241,7 @@ CURLcode ftp_parse_url_path(struct conne
+       result = Curl_urldecode(conn->data, slash_pos ? cur_pos : "/",
+                               slash_pos ? dirlen : 1,
+                               &ftpc->dirs[0], NULL,
+-                              FALSE);
++                              TRUE);
+       if(result) {
+         freedirs(ftpc);
+         return result;
+@@ -4349,7 +4349,7 @@ CURLcode ftp_parse_url_path(struct conne
+     size_t dlen;
+     char *path;
+     CURLcode result =
+-      Curl_urldecode(conn->data, data->state.path, 0, &path, &dlen, FALSE);
++      Curl_urldecode(conn->data, data->state.path, 0, &path, &dlen, TRUE);
+     if(result) {
+       freedirs(ftpc);
+       return result;
diff --git a/package/network/utils/curl/patches/112-CVE-2018-1000121.patch b/package/network/utils/curl/patches/112-CVE-2018-1000121.patch
new file mode 100644 (file)
index 0000000..8fdb337
--- /dev/null
@@ -0,0 +1,37 @@
+From 8f341a5d6f15381492ca2013325d485b6d8d1c13 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Tue, 6 Mar 2018 23:02:16 +0100
+Subject: [PATCH] openldap: check ldap_get_attribute_ber() results for NULL
+ before using
+
+CVE-2018-1000121
+Reported-by: Dario Weisser
+Bug: https://curl.haxx.se/docs/adv_2018-97a2.html
+---
+ lib/openldap.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/lib/openldap.c
++++ b/lib/openldap.c
+@@ -443,7 +443,7 @@ static ssize_t ldap_recv(struct connectd
+   for(ent = ldap_first_message(li->ld, msg); ent;
+     ent = ldap_next_message(li->ld, ent)) {
+-    struct berval bv, *bvals, **bvp = &bvals;
++    struct berval bv, *bvals;
+     int binary = 0, msgtype;
+     CURLcode writeerr;
+@@ -505,9 +505,9 @@ static ssize_t ldap_recv(struct connectd
+     }
+     data->req.bytecount += bv.bv_len + 5;
+-    for(rc = ldap_get_attribute_ber(li->ld, ent, ber, &bv, bvp);
+-      rc == LDAP_SUCCESS;
+-      rc = ldap_get_attribute_ber(li->ld, ent, ber, &bv, bvp)) {
++    for(rc = ldap_get_attribute_ber(li->ld, ent, ber, &bv, &bvals);
++        (rc == LDAP_SUCCESS) && bvals;
++        rc = ldap_get_attribute_ber(li->ld, ent, ber, &bv, &bvals)) {
+       int i;
+       if(bv.bv_val == NULL) break;
diff --git a/package/network/utils/curl/patches/113-CVE-2018-1000122.patch b/package/network/utils/curl/patches/113-CVE-2018-1000122.patch
new file mode 100644 (file)
index 0000000..68a81ae
--- /dev/null
@@ -0,0 +1,33 @@
+From d70b74d6f893947aa22d3f14df10f92a8c349388 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Thu, 8 Mar 2018 10:33:16 +0100
+Subject: [PATCH] readwrite: make sure excess reads don't go beyond buffer end
+
+CVE-2018-1000122
+Bug: https://curl.haxx.se/docs/adv_2018-b047.html
+
+Detected by OSS-fuzz
+---
+ lib/transfer.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+--- a/lib/transfer.c
++++ b/lib/transfer.c
+@@ -791,10 +791,15 @@ static CURLcode readwrite_data(struct Cu
+     } /* if(!header and data to read) */
+-    if(conn->handler->readwrite &&
+-       (excess > 0 && !conn->bits.stream_was_rewound)) {
++    if(conn->handler->readwrite && excess && !conn->bits.stream_was_rewound) {
+       /* Parse the excess data */
+       k->str += nread;
++
++      if(&k->str[excess] > &k->buf[data->set.buffer_size]) {
++        /* the excess amount was too excessive(!), make sure
++           it doesn't read out of buffer */
++        excess = &k->buf[data->set.buffer_size] - k->str;
++      }
+       nread = (ssize_t)excess;
+       result = conn->handler->readwrite(data, conn, &nread, &readmore);
diff --git a/package/network/utils/curl/patches/114-CVE-2018-1000301.patch b/package/network/utils/curl/patches/114-CVE-2018-1000301.patch
new file mode 100644 (file)
index 0000000..993c985
--- /dev/null
@@ -0,0 +1,39 @@
+From 8c7b3737d29ed5c0575bf592063de8a51450812d Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Sat, 24 Mar 2018 23:47:41 +0100
+Subject: [PATCH] http: restore buffer pointer when bad response-line is parsed
+
+... leaving the k->str could lead to buffer over-reads later on.
+
+CVE: CVE-2018-1000301
+Assisted-by: Max Dymond
+
+Detected by OSS-Fuzz.
+Bug: https://curl.haxx.se/docs/adv_2018-b138.html
+Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7105
+---
+ lib/http.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/lib/http.c
++++ b/lib/http.c
+@@ -2924,6 +2924,8 @@ CURLcode Curl_http_readwrite_headers(str
+ {
+   CURLcode result;
+   struct SingleRequest *k = &data->req;
++  ssize_t onread = *nread;
++  char *ostr = k->str;
+   /* header line within buffer loop */
+   do {
+@@ -2988,7 +2990,9 @@ CURLcode Curl_http_readwrite_headers(str
+         else {
+           /* this was all we read so it's all a bad header */
+           k->badheader = HEADER_ALLBAD;
+-          *nread = (ssize_t)rest_length;
++          *nread = onread;
++          k->str = ostr;
++          return CURLE_OK;
+         }
+         break;
+       }
index 33ab296e567e188adcd3369ddbf8895c016b6b69..0beac59e4815aaad13457b61356361cb875e3ae2 100644 (file)
@@ -9,11 +9,9 @@ vtls must set wait for read/write flags for the socket.
  lib/vtls/vtls.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)
 
-diff --git a/lib/vtls/vtls.c b/lib/vtls/vtls.c
-index fad9335bbf..871622fef1 100644
 --- a/lib/vtls/vtls.c
 +++ b/lib/vtls/vtls.c
-@@ -485,8 +485,9 @@ void Curl_ssl_close_all(struct Curl_easy *data)
+@@ -488,8 +488,9 @@ void Curl_ssl_close_all(struct Curl_easy
  }
  
  #if defined(USE_OPENSSL) || defined(USE_GNUTLS) || defined(USE_SCHANNEL) || \