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The internal libcurl function called sanitize_cookie_path() that cleans
up the path element as given to it from a remote site or when read from
a file, did not properly validate the input. If given a path that
consisted of a single double-quote, libcurl would index a newly
allocated memory area with index -1 and assign a zero to it, thus
destroying heap memory it wasn't supposed to.
CVE-2015-3145
Bug: http://curl.haxx.se/docs/adv_20150422C.html
Reported-by: Hanno Böck
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"name =value" is fine and the space should just be skipped.
Updated test 31 to also test for this.
Bug: https://github.com/bagder/curl/issues/195
Reported-by: cromestant
Help-by: Frank Gevaerts
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This header file must be included after all header files except
memdebug.h, as it does similar memory function redefinitions and can be
similarly affected by conflicting definitions in system or dependent
library headers.
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Since we just started make use of free(NULL) in order to simplify code,
this change takes it a step further and:
- converts lots of Curl_safefree() calls to good old free()
- makes Curl_safefree() not check the pointer before free()
The (new) rule of thumb is: if you really want a function call that
frees a pointer and then assigns it to NULL, then use Curl_safefree().
But we will prefer just using free() from now on.
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The function "free" is documented in the way that no action shall occur for
a passed null pointer. It is therefore not needed that a function caller
repeats a corresponding check.
http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first
This issue was fixed by using the software Coccinelle 1.0.0-rc24.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
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... and as a consequence, introduce curl_printf.h with that re-define
magic instead and make all libcurl code use that instead.
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This fixes the test 506 torture test. The internal cookie API really
ought to be improved to separate cookie parsing errors (which may be
ignored) with OOM errors (which should be fatal).
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Also, fixed the outdated comments on the cookie API.
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Test 61 was modified to verify this.
CVE-2014-3620
Reported-by: Tim Ruehsen
URL: http://curl.haxx.se/docs/adv_20140910B.html
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By not detecting and rejecting domain names for partial literal IP
addresses properly when parsing received HTTP cookies, libcurl can be
fooled to both send cookies to wrong sites and to allow arbitrary sites
to set cookies for others.
CVE-2014-3613
Bug: http://curl.haxx.se/docs/adv_20140910A.html
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1 - allow >31 bit max-age values
2 - don't overflow on extremely large max-age values when we add the
value to the current time
3 - make sure max-age takes precedence over expires as dictated by
RFC6265
Bug: http://curl.haxx.se/mail/lib-2014-01/0130.html
Reported-by: Chen Prog
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The now argument is unused by curl_getdate()
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Following commit 0aafd77fa4c6f2, replaced the internal usage of
FORMAT_OFF_T and FORMAT_OFF_TU with the external versions that we
expect API programmers to use.
This negates the need for separate definitions which were subtly
different under different platforms/compilers.
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Implement: Expired Cookies These following situation, curl removes
cookie(s) from struct CookieInfo if the cookie expired.
- Curl_cookie_add()
- Curl_cookie_getlist()
- cookie_output()
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The initial fix to only compare full path names were done in commit
04f52e9b4db0 but found out to be incomplete. This takes should make the
change more complete and there's now two additional tests to verify
(test 31 and 62).
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1 - don't skip host names with a colon in them in an attempt to bail out
on HTTP headers in the cookie file parser. It was only a shortcut anyway
and trying to parse a file with HTTP headers will still be handled, only
slightly slower.
2 - don't skip domain names based on number of dots. The original
netscape cookie spec had this oddity mentioned and while our code
decreased the check to only check for two, the existing cookie spec has
no such dot counting required.
Bug: http://curl.haxx.se/bug/view.cgi?id=1221
Reported-by: Stefan Neis
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I found a bug which cURL sends cookies to the path not to aim at.
For example:
- cURL sends a request to http://example.fake/hoge/
- server returns cookie which with path=/hoge;
the point is there is NOT the '/' end of path string.
- cURL sends a request to http://example.fake/hogege/ with the cookie.
The reason for this old "feature" is because that behavior is what is
described in the original netscape cookie spec:
http://curl.haxx.se/rfc/cookie_spec.html
The current cookie spec (RFC6265) clarifies the situation:
http://tools.ietf.org/html/rfc6265#section-5.2.4
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Cookies set for 'example.com' could accidentaly also be sent by libcurl
to the 'bexample.com' (ie with a prefix to the first domain name).
This is a security vulnerabilty, CVE-2013-1944.
Bug: http://curl.haxx.se/docs/adv_20130412.html
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Since qsort implementations vary with regards to handling the order
of similiar elements, this change makes the internal sort function
more deterministic by comparing path length first, then domain length
and finally the cookie name. Spotted with testcase 62 on Windows.
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Count up numcookies in Curl_cookie_add() only when cookie is new one
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This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.
Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]
Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]
----------------------------------------
1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
this single inclusion guard is enough to ensure that inclusion of
lib/setup_once.h done from lib/setup.h is only done once.
Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
protect inclusion of setup_once.h even after commit ec691ca3, this
was to avoid a circular header inclusion triggered when building a
c-ares enabled version with c-ares sources available which also has
a setup_once.h header. Commit ec691ca3 exposes the real nature of
__SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
foreign to libcurl belonging to c-ares's setup_once.h
The renaming this commit does, fixes the circular header inclusion,
and as such removes the need and usage of a header inclusion guard
foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.
2 - Due to the circular interdependency of old lib/setup_once.h and the
c-ares setup_once.h header, old file lib/setup_once.h has carried
back from 2006 up to now days an alarming and prominent notice about
the need of keeping libcurl's and c-ares's setup_once.h in sync.
Given that this commit fixes the circular interdependency, the need
and presence of mentioned notice is removed.
All mentioned interdependencies come back from now old days when
the c-ares project lived inside a curl subdirectory. This commit
removes last traces of such fact.
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This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:
f871de0... build: make use of 76 lib/*.h renamed files
ffd8e12... build: rename 76 lib/*.h files
This also reverts removal of redundant include guard (redundant thanks
to changes in above commits) done 2-12-2013, reverting 1 commit:
c087374... curl_setup.h: remove redundant include guard
This also reverts renaming and usage of lib/*.c source files done
3-12-2013, reverting 3 commits:
13606bb... build: make use of 93 lib/*.c renamed files
5b6e792... build: rename 93 lib/*.c files
7d83dff... build: commit 13606bbfde follow-up 1
Start of related discussion thread:
http://curl.haxx.se/mail/lib-2013-01/0012.html
Asking for confirmation on pushing this revertion commit:
http://curl.haxx.se/mail/lib-2013-01/0048.html
Confirmation summary:
http://curl.haxx.se/mail/lib-2013-01/0079.html
NOTICE: The list of 2 files that have been modified by other
intermixed commits, while renamed, and also by at least one
of the 6 commits this one reverts follows below. These 2 files
will exhibit a hole in history unless git's '--follow' option
is used when viewing logs.
lib/curl_imap.h
lib/curl_smtp.h
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93 lib/*.c source files renamed to use our standard naming scheme.
This commit only does the file renaming.
----------------------------------------
renamed: lib/amigaos.c -> lib/curl_amigaos.c
renamed: lib/asyn-ares.c -> lib/curl_asyn_ares.c
renamed: lib/asyn-thread.c -> lib/curl_asyn_thread.c
renamed: lib/axtls.c -> lib/curl_axtls.c
renamed: lib/base64.c -> lib/curl_base64.c
renamed: lib/bundles.c -> lib/curl_bundles.c
renamed: lib/conncache.c -> lib/curl_conncache.c
renamed: lib/connect.c -> lib/curl_connect.c
renamed: lib/content_encoding.c -> lib/curl_content_encoding.c
renamed: lib/cookie.c -> lib/curl_cookie.c
renamed: lib/cyassl.c -> lib/curl_cyassl.c
renamed: lib/dict.c -> lib/curl_dict.c
renamed: lib/easy.c -> lib/curl_easy.c
renamed: lib/escape.c -> lib/curl_escape.c
renamed: lib/file.c -> lib/curl_file.c
renamed: lib/fileinfo.c -> lib/curl_fileinfo.c
renamed: lib/formdata.c -> lib/curl_formdata.c
renamed: lib/ftp.c -> lib/curl_ftp.c
renamed: lib/ftplistparser.c -> lib/curl_ftplistparser.c
renamed: lib/getenv.c -> lib/curl_getenv.c
renamed: lib/getinfo.c -> lib/curl_getinfo.c
renamed: lib/gopher.c -> lib/curl_gopher.c
renamed: lib/gtls.c -> lib/curl_gtls.c
renamed: lib/hash.c -> lib/curl_hash.c
renamed: lib/hmac.c -> lib/curl_hmac.c
renamed: lib/hostasyn.c -> lib/curl_hostasyn.c
renamed: lib/hostcheck.c -> lib/curl_hostcheck.c
renamed: lib/hostip.c -> lib/curl_hostip.c
renamed: lib/hostip4.c -> lib/curl_hostip4.c
renamed: lib/hostip6.c -> lib/curl_hostip6.c
renamed: lib/hostsyn.c -> lib/curl_hostsyn.c
renamed: lib/http.c -> lib/curl_http.c
renamed: lib/http_chunks.c -> lib/curl_http_chunks.c
renamed: lib/http_digest.c -> lib/curl_http_digest.c
renamed: lib/http_negotiate.c -> lib/curl_http_negotiate.c
renamed: lib/http_negotiate_sspi.c -> lib/curl_http_negotiate_sspi.c
renamed: lib/http_proxy.c -> lib/curl_http_proxy.c
renamed: lib/idn_win32.c -> lib/curl_idn_win32.c
renamed: lib/if2ip.c -> lib/curl_if2ip.c
renamed: lib/imap.c -> lib/curl_imap.c
renamed: lib/inet_ntop.c -> lib/curl_inet_ntop.c
renamed: lib/inet_pton.c -> lib/curl_inet_pton.c
renamed: lib/krb4.c -> lib/curl_krb4.c
renamed: lib/krb5.c -> lib/curl_krb5.c
renamed: lib/ldap.c -> lib/curl_ldap.c
renamed: lib/llist.c -> lib/curl_llist.c
renamed: lib/md4.c -> lib/curl_md4.c
renamed: lib/md5.c -> lib/curl_md5.c
renamed: lib/memdebug.c -> lib/curl_memdebug.c
renamed: lib/mprintf.c -> lib/curl_mprintf.c
renamed: lib/multi.c -> lib/curl_multi.c
renamed: lib/netrc.c -> lib/curl_netrc.c
renamed: lib/non-ascii.c -> lib/curl_non_ascii.c
renamed: lib/curl_non-ascii.h -> lib/curl_non_ascii.h
renamed: lib/nonblock.c -> lib/curl_nonblock.c
renamed: lib/nss.c -> lib/curl_nss.c
renamed: lib/nwlib.c -> lib/curl_nwlib.c
renamed: lib/nwos.c -> lib/curl_nwos.c
renamed: lib/openldap.c -> lib/curl_openldap.c
renamed: lib/parsedate.c -> lib/curl_parsedate.c
renamed: lib/pingpong.c -> lib/curl_pingpong.c
renamed: lib/polarssl.c -> lib/curl_polarssl.c
renamed: lib/pop3.c -> lib/curl_pop3.c
renamed: lib/progress.c -> lib/curl_progress.c
renamed: lib/qssl.c -> lib/curl_qssl.c
renamed: lib/rawstr.c -> lib/curl_rawstr.c
renamed: lib/rtsp.c -> lib/curl_rtsp.c
renamed: lib/security.c -> lib/curl_security.c
renamed: lib/select.c -> lib/curl_select.c
renamed: lib/sendf.c -> lib/curl_sendf.c
renamed: lib/share.c -> lib/curl_share.c
renamed: lib/slist.c -> lib/curl_slist.c
renamed: lib/smtp.c -> lib/curl_smtp.c
renamed: lib/socks.c -> lib/curl_socks.c
renamed: lib/socks_gssapi.c -> lib/curl_socks_gssapi.c
renamed: lib/socks_sspi.c -> lib/curl_socks_sspi.c
renamed: lib/speedcheck.c -> lib/curl_speedcheck.c
renamed: lib/splay.c -> lib/curl_splay.c
renamed: lib/ssh.c -> lib/curl_ssh.c
renamed: lib/sslgen.c -> lib/curl_sslgen.c
renamed: lib/ssluse.c -> lib/curl_ssluse.c
renamed: lib/strdup.c -> lib/curl_strdup.c
renamed: lib/strequal.c -> lib/curl_strequal.c
renamed: lib/strerror.c -> lib/curl_strerror.c
renamed: lib/strtok.c -> lib/curl_strtok.c
renamed: lib/strtoofft.c -> lib/curl_strtoofft.c
renamed: lib/telnet.c -> lib/curl_telnet.c
renamed: lib/tftp.c -> lib/curl_tftp.c
renamed: lib/timeval.c -> lib/curl_timeval.c
renamed: lib/transfer.c -> lib/curl_transfer.c
renamed: lib/url.c -> lib/curl_url.c
renamed: lib/version.c -> lib/curl_version.c
renamed: lib/warnless.c -> lib/curl_warnless.c
renamed: lib/wildcard.c -> lib/curl_wildcard.c
----------------------------------------
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76 private header files renamed to use our standard naming scheme.
This change affects 322 files in libcurl's source tree.
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There are two keywords in cookie headers that don't follow the regular
name=value style: secure and httponly. Still we must support that they
are written like 'secure=' and then treat them as if they were written
'secure'. Test case 31 was much extended by Rob Ward to test this.
Bug: http://curl.haxx.se/bug/view.cgi?id=3349227
Reported by: "gnombat"
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"if(a)" is our style, not "if( a )"
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By the use of a the new lib/checksrc.pl script that checks that our
basic source style rules are followed.
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Found with codespell.
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1 - make sure to #define macros for cookie functions in the cookie
header when cookies are disabled to avoid having to use #ifdefs in code
using those functions.
2 - move cookie-specific code to cookie.c and use the functio
conditionally as mentioned in (1).
net result: 6 #if lines removed, and 9 lines of code less
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Providing multiple dots in a series in the domain field (domain=..com) could
trick the cookie engine to wrongly accept the cookie believing it to be
fine. Since the tailmatching would then match all .com sites, the cookie would
then be sent to all of them.
The code now requires at least one letter between each dot for them to be
counted. Edited test case 61 to verify this.
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HTTP Cookie: header _needs_ to be sorted on the path length in the cases
where two cookies using the same name are set more than once using
(overlapping) paths. Realizing this, identically named cookies must be
sorted correctly. But detecting only identically named cookies and take care
of them individually is harder than just to blindly and unconditionally sort
all cookies based on their path lengths. All major browsers also already do
this, so this makes our behavior one step closer to them in the cookie area.
Test case 8 was the only one that broke due to this change and I updated it
accordingly.
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unparsable expiry dates and then treat them as session cookies - previously
libcurl would reject cookies with a date format it couldn't parse. Research
shows that the major browser treat such cookies as session cookies. I
modified test 8 and 31 to verify this.
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