diff options
Diffstat (limited to 'meta/recipes-support/curl/curl/CVE-2022-32207.patch')
| -rw-r--r-- | meta/recipes-support/curl/curl/CVE-2022-32207.patch | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/meta/recipes-support/curl/curl/CVE-2022-32207.patch b/meta/recipes-support/curl/curl/CVE-2022-32207.patch new file mode 100644 index 0000000000..f75aaecd64 --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2022-32207.patch @@ -0,0 +1,284 @@ +From af92181055d7d64dfc0bc9d5a13c8b98af3196be Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <daniel@haxx.se> +Date: Wed, 25 May 2022 10:09:53 +0200 +Subject: [PATCH] fopen: add Curl_fopen() for better overwriting of files + +Bug: https://curl.se/docs/CVE-2022-32207.html +CVE-2022-32207 +Reported-by: Harry Sintonen +Closes #9050 + +Upstream-Status: Backport [https://github.com/curl/curl/commit/20f9dd6bae50b] +Signed-off-by: Robert Joslyn <robert.joslyn@redrectangle.org> +--- + CMakeLists.txt | 1 + + configure.ac | 1 + + lib/Makefile.inc | 4 +- + lib/cookie.c | 19 ++----- + lib/curl_config.h.cmake | 3 ++ + lib/fopen.c | 113 ++++++++++++++++++++++++++++++++++++++++ + lib/fopen.h | 30 +++++++++++ + 7 files changed, 155 insertions(+), 16 deletions(-) + create mode 100644 lib/fopen.c + create mode 100644 lib/fopen.h + +diff --git a/CMakeLists.txt b/CMakeLists.txt +index 73b053b..cc587b0 100644 +--- a/CMakeLists.txt ++++ b/CMakeLists.txt +@@ -869,6 +869,7 @@ elseif(HAVE_LIBSOCKET) + set(CMAKE_REQUIRED_LIBRARIES socket) + endif() + ++check_symbol_exists(fchmod "${CURL_INCLUDES}" HAVE_FCHMOD) + check_symbol_exists(basename "${CURL_INCLUDES}" HAVE_BASENAME) + check_symbol_exists(socket "${CURL_INCLUDES}" HAVE_SOCKET) + check_symbol_exists(select "${CURL_INCLUDES}" HAVE_SELECT) +diff --git a/configure.ac b/configure.ac +index d090622..7071077 100755 +--- a/configure.ac ++++ b/configure.ac +@@ -4059,6 +4059,7 @@ AC_CHECK_DECLS([getpwuid_r], [], [AC_DEFINE(HAVE_DECL_GETPWUID_R_MISSING, 1, "Se + + + AC_CHECK_FUNCS([fnmatch \ ++ fchmod \ + geteuid \ + getpass_r \ + getppid \ +diff --git a/lib/Makefile.inc b/lib/Makefile.inc +index 46ded90..79307d8 100644 +--- a/lib/Makefile.inc ++++ b/lib/Makefile.inc +@@ -63,7 +63,7 @@ LIB_CFILES = file.c timeval.c base64.c hostip.c progress.c formdata.c \ + curl_multibyte.c hostcheck.c conncache.c dotdot.c \ + x509asn1.c http2.c smb.c curl_endian.c curl_des.c system_win32.c \ + mime.c sha256.c setopt.c curl_path.c curl_ctype.c curl_range.c psl.c \ +- doh.c urlapi.c curl_get_line.c altsvc.c socketpair.c rename.c ++ doh.c urlapi.c curl_get_line.c altsvc.c socketpair.c rename.c fopen.c + + LIB_HFILES = arpa_telnet.h netrc.h file.h timeval.h hostip.h progress.h \ + formdata.h cookie.h http.h sendf.h ftp.h url.h dict.h if2ip.h \ +@@ -84,7 +84,7 @@ LIB_HFILES = arpa_telnet.h netrc.h file.h timeval.h hostip.h progress.h \ + x509asn1.h http2.h sigpipe.h smb.h curl_endian.h curl_des.h \ + curl_printf.h system_win32.h rand.h mime.h curl_sha256.h setopt.h \ + curl_path.h curl_ctype.h curl_range.h psl.h doh.h urlapi-int.h \ +- curl_get_line.h altsvc.h quic.h socketpair.h rename.h ++ curl_get_line.h altsvc.h quic.h socketpair.h rename.h fopen.h + + LIB_RCFILES = libcurl.rc + +diff --git a/lib/cookie.c b/lib/cookie.c +index 68054e1..a9ad20a 100644 +--- a/lib/cookie.c ++++ b/lib/cookie.c +@@ -97,8 +97,8 @@ Example set of cookies: + #include "curl_memrchr.h" + #include "inet_pton.h" + #include "parsedate.h" +-#include "rand.h" + #include "rename.h" ++#include "fopen.h" + + /* The last 3 #include files should be in this order */ + #include "curl_printf.h" +@@ -1524,18 +1524,9 @@ static int cookie_output(struct Curl_easy *data, + use_stdout = TRUE; + } + else { +- unsigned char randsuffix[9]; +- +- if(Curl_rand_hex(data, randsuffix, sizeof(randsuffix))) +- return 2; +- +- tempstore = aprintf("%s.%s.tmp", filename, randsuffix); +- if(!tempstore) +- return 1; +- +- out = fopen(tempstore, FOPEN_WRITETEXT); +- if(!out) +- goto error; ++ error = Curl_fopen(data, filename, &out, &tempstore); ++ if(error) ++ goto error; + } + + fputs("# Netscape HTTP Cookie File\n" +@@ -1581,7 +1572,7 @@ static int cookie_output(struct Curl_easy *data, + if(!use_stdout) { + fclose(out); + out = NULL; +- if(Curl_rename(tempstore, filename)) { ++ if(tempstore && Curl_rename(tempstore, filename)) { + unlink(tempstore); + goto error; + } +diff --git a/lib/curl_config.h.cmake b/lib/curl_config.h.cmake +index 98cdf51..fe43751 100644 +--- a/lib/curl_config.h.cmake ++++ b/lib/curl_config.h.cmake +@@ -124,6 +124,9 @@ + /* Define to 1 if you have the <assert.h> header file. */ + #cmakedefine HAVE_ASSERT_H 1 + ++/* Define to 1 if you have the `fchmod' function. */ ++#cmakedefine HAVE_FCHMOD 1 ++ + /* Define to 1 if you have the `basename' function. */ + #cmakedefine HAVE_BASENAME 1 + +diff --git a/lib/fopen.c b/lib/fopen.c +new file mode 100644 +index 0000000..ad3691b +--- /dev/null ++++ b/lib/fopen.c +@@ -0,0 +1,113 @@ ++/*************************************************************************** ++ * _ _ ____ _ ++ * Project ___| | | | _ \| | ++ * / __| | | | |_) | | ++ * | (__| |_| | _ <| |___ ++ * \___|\___/|_| \_\_____| ++ * ++ * Copyright (C) 1998 - 2022, 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 ++ * are also available at https://curl.se/docs/copyright.html. ++ * ++ * You may opt to use, copy, modify, merge, publish, distribute and/or sell ++ * copies of the Software, and permit persons to whom the Software is ++ * furnished to do so, under the terms of the COPYING file. ++ * ++ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY ++ * KIND, either express or implied. ++ * ++ * SPDX-License-Identifier: curl ++ * ++ ***************************************************************************/ ++ ++#include "curl_setup.h" ++ ++#if !defined(CURL_DISABLE_COOKIES) || !defined(CURL_DISABLE_ALTSVC) || \ ++ !defined(CURL_DISABLE_HSTS) ++ ++#ifdef HAVE_FCNTL_H ++#include <fcntl.h> ++#endif ++ ++#include "urldata.h" ++#include "rand.h" ++#include "fopen.h" ++/* The last 3 #include files should be in this order */ ++#include "curl_printf.h" ++#include "curl_memory.h" ++#include "memdebug.h" ++ ++/* ++ * Curl_fopen() opens a file for writing with a temp name, to be renamed ++ * to the final name when completed. If there is an existing file using this ++ * name at the time of the open, this function will clone the mode from that ++ * file. if 'tempname' is non-NULL, it needs a rename after the file is ++ * written. ++ */ ++CURLcode Curl_fopen(struct Curl_easy *data, const char *filename, ++ FILE **fh, char **tempname) ++{ ++ CURLcode result = CURLE_WRITE_ERROR; ++ unsigned char randsuffix[9]; ++ char *tempstore = NULL; ++ struct_stat sb; ++ int fd = -1; ++ *tempname = NULL; ++ ++ if(stat(filename, &sb) == -1 || !S_ISREG(sb.st_mode)) { ++ /* a non-regular file, fallback to direct fopen() */ ++ *fh = fopen(filename, FOPEN_WRITETEXT); ++ if(*fh) ++ return CURLE_OK; ++ goto fail; ++ } ++ ++ result = Curl_rand_hex(data, randsuffix, sizeof(randsuffix)); ++ if(result) ++ goto fail; ++ ++ tempstore = aprintf("%s.%s.tmp", filename, randsuffix); ++ if(!tempstore) { ++ result = CURLE_OUT_OF_MEMORY; ++ goto fail; ++ } ++ ++ result = CURLE_WRITE_ERROR; ++ fd = open(tempstore, O_WRONLY | O_CREAT | O_EXCL, 0600); ++ if(fd == -1) ++ goto fail; ++ ++#ifdef HAVE_FCHMOD ++ { ++ struct_stat nsb; ++ if((fstat(fd, &nsb) != -1) && ++ (nsb.st_uid == sb.st_uid) && (nsb.st_gid == sb.st_gid)) { ++ /* if the user and group are the same, clone the original mode */ ++ if(fchmod(fd, sb.st_mode) == -1) ++ goto fail; ++ } ++ } ++#endif ++ ++ *fh = fdopen(fd, FOPEN_WRITETEXT); ++ if(!*fh) ++ goto fail; ++ ++ *tempname = tempstore; ++ return CURLE_OK; ++ ++fail: ++ if(fd != -1) { ++ close(fd); ++ unlink(tempstore); ++ } ++ ++ free(tempstore); ++ ++ *tempname = NULL; ++ return result; ++} ++ ++#endif /* ! disabled */ +diff --git a/lib/fopen.h b/lib/fopen.h +new file mode 100644 +index 0000000..289e55f +--- /dev/null ++++ b/lib/fopen.h +@@ -0,0 +1,30 @@ ++#ifndef HEADER_CURL_FOPEN_H ++#define HEADER_CURL_FOPEN_H ++/*************************************************************************** ++ * _ _ ____ _ ++ * Project ___| | | | _ \| | ++ * / __| | | | |_) | | ++ * | (__| |_| | _ <| |___ ++ * \___|\___/|_| \_\_____| ++ * ++ * Copyright (C) 1998 - 2022, 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 ++ * are also available at https://curl.se/docs/copyright.html. ++ * ++ * You may opt to use, copy, modify, merge, publish, distribute and/or sell ++ * copies of the Software, and permit persons to whom the Software is ++ * furnished to do so, under the terms of the COPYING file. ++ * ++ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY ++ * KIND, either express or implied. ++ * ++ * SPDX-License-Identifier: curl ++ * ++ ***************************************************************************/ ++ ++CURLcode Curl_fopen(struct Curl_easy *data, const char *filename, ++ FILE **fh, char **tempname); ++ ++#endif |