diff options
Diffstat (limited to 'meta/recipes-support/curl/curl/CVE-2023-28321.patch')
| -rw-r--r-- | meta/recipes-support/curl/curl/CVE-2023-28321.patch | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/meta/recipes-support/curl/curl/CVE-2023-28321.patch b/meta/recipes-support/curl/curl/CVE-2023-28321.patch new file mode 100644 index 0000000000..bcd8b112db --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2023-28321.patch @@ -0,0 +1,302 @@ +From 199f2d440d8659b42670c1b796220792b01a97bf Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <daniel@haxx.se> +Date: Mon, 24 Apr 2023 21:07:02 +0200 +Subject: [PATCH] hostcheck: fix host name wildcard checking + +The leftmost "label" of the host name can now only match against single +'*'. Like the browsers have worked for a long time. + +- extended unit test 1397 for this +- move some SOURCE variables from unit/Makefile.am to unit/Makefile.inc + +Reported-by: Hiroki Kurosawa +Closes #11018 + +CVE: CVE-2023-28321 +Upstream-Status: Backport [https://github.com/curl/curl/commit/199f2d440d8659b42] +Comments: Hunks removed as changes already exist +Removed hunks from files: +tests/unit/Makefile.am +tests/unit/Makefile.inc +Signed-off-by: Bhabu Bindu <bhabu.bindu@kpit.com> +--- + lib/vtls/hostcheck.c | 50 +++++++-------- + tests/data/test1397 | 10 ++- + tests/unit/Makefile.am | 94 ---------------------------- + tests/unit/Makefile.inc | 94 ++++++++++++++++++++++++++++ + tests/unit/unit1397.c | 134 ++++++++++++++++++++++++---------------- + 5 files changed, 202 insertions(+), 180 deletions(-) + +diff --git a/lib/vtls/hostcheck.c b/lib/vtls/hostcheck.c +index e827dc58f378c..d061c6356f97f 100644 +--- a/lib/vtls/hostcheck.c ++++ b/lib/vtls/hostcheck.c +@@ -71,7 +71,12 @@ static bool pmatch(const char *hostname, size_t hostlen, + * apparent distinction between a name and an IP. We need to detect the use of + * an IP address and not wildcard match on such names. + * ++ * Only match on "*" being used for the leftmost label, not "a*", "a*b" nor ++ * "*b". ++ * + * Return TRUE on a match. FALSE if not. ++ * ++ * @unittest: 1397 + */ + + static bool hostmatch(const char *hostname, +@@ -79,53 +84,42 @@ static bool hostmatch(const char *hostname, + const char *pattern, + size_t patternlen) + { +- const char *pattern_label_end, *wildcard, *hostname_label_end; +- size_t prefixlen, suffixlen; ++ const char *pattern_label_end; + +- /* normalize pattern and hostname by stripping off trailing dots */ ++ DEBUGASSERT(pattern); + DEBUGASSERT(patternlen); ++ DEBUGASSERT(hostname); ++ DEBUGASSERT(hostlen); ++ ++ /* normalize pattern and hostname by stripping off trailing dots */ + if(hostname[hostlen-1]=='.') + hostlen--; + if(pattern[patternlen-1]=='.') + patternlen--; + +- wildcard = memchr(pattern, '*', patternlen); +- if(!wildcard) ++ if(strncmp(pattern, "*.", 2)) + return pmatch(hostname, hostlen, pattern, patternlen); + + /* detect IP address as hostname and fail the match if so */ +- if(Curl_host_is_ipnum(hostname)) ++ else if(Curl_host_is_ipnum(hostname)) + return FALSE; + + /* We require at least 2 dots in the pattern to avoid too wide wildcard + match. */ + pattern_label_end = memchr(pattern, '.', patternlen); + if(!pattern_label_end || +- (memrchr(pattern, '.', patternlen) == pattern_label_end) || +- strncasecompare(pattern, "xn--", 4)) ++ (memrchr(pattern, '.', patternlen) == pattern_label_end)) + return pmatch(hostname, hostlen, pattern, patternlen); +- +- hostname_label_end = memchr(hostname, '.', hostlen); +- if(!hostname_label_end) +- return FALSE; + else { +- size_t skiphost = hostname_label_end - hostname; +- size_t skiplen = pattern_label_end - pattern; +- if(!pmatch(hostname_label_end, hostlen - skiphost, +- pattern_label_end, patternlen - skiplen)) +- return FALSE; ++ const char *hostname_label_end = memchr(hostname, '.', hostlen); ++ if(hostname_label_end) { ++ size_t skiphost = hostname_label_end - hostname; ++ size_t skiplen = pattern_label_end - pattern; ++ return pmatch(hostname_label_end, hostlen - skiphost, ++ pattern_label_end, patternlen - skiplen); ++ } + } +- /* The wildcard must match at least one character, so the left-most +- label of the hostname is at least as large as the left-most label +- of the pattern. */ +- if(hostname_label_end - hostname < pattern_label_end - pattern) +- return FALSE; +- +- prefixlen = wildcard - pattern; +- suffixlen = pattern_label_end - (wildcard + 1); +- return strncasecompare(pattern, hostname, prefixlen) && +- strncasecompare(wildcard + 1, hostname_label_end - suffixlen, +- suffixlen) ? TRUE : FALSE; ++ return FALSE; + } + + /* +diff --git a/tests/data/test1397 b/tests/data/test1397 +index 84f962abebee3..f31b2c2a3f330 100644 +--- a/tests/data/test1397 ++++ b/tests/data/test1397 +@@ -2,8 +2,7 @@ + <info> + <keywords> + unittest +-ssl +-wildcard ++Curl_cert_hostcheck + </keywords> + </info> + +@@ -16,9 +15,8 @@ none + <features> + unittest + </features> +- <name> +-Check wildcard certificate matching function Curl_cert_hostcheck +- </name> ++<name> ++Curl_cert_hostcheck unit tests ++</name> + </client> +- + </testcase> +diff --git a/tests/unit/unit1397.c b/tests/unit/unit1397.c +index 2f3d3aa4d09e1..3ae75618d5d10 100644 +--- a/tests/unit/unit1397.c ++++ b/tests/unit/unit1397.c +@@ -23,7 +23,6 @@ + ***************************************************************************/ + #include "curlcheck.h" + +-#include "vtls/hostcheck.h" /* from the lib dir */ + + static CURLcode unit_setup(void) + { +@@ -32,63 +31,94 @@ static CURLcode unit_setup(void) + + static void unit_stop(void) + { +- /* done before shutting down and exiting */ + } + +-UNITTEST_START +- + /* only these backends define the tested functions */ +-#if defined(USE_OPENSSL) || defined(USE_GSKIT) +- +- /* here you start doing things and checking that the results are good */ ++#if defined(USE_OPENSSL) || defined(USE_GSKIT) || defined(USE_SCHANNEL) ++#include "vtls/hostcheck.h" ++struct testcase { ++ const char *host; ++ const char *pattern; ++ bool match; ++}; + +-fail_unless(Curl_cert_hostcheck(STRCONST("www.example.com"), +- STRCONST("www.example.com")), "good 1"); +-fail_unless(Curl_cert_hostcheck(STRCONST("*.example.com"), +- STRCONST("www.example.com")), +- "good 2"); +-fail_unless(Curl_cert_hostcheck(STRCONST("xxx*.example.com"), +- STRCONST("xxxwww.example.com")), "good 3"); +-fail_unless(Curl_cert_hostcheck(STRCONST("f*.example.com"), +- STRCONST("foo.example.com")), "good 4"); +-fail_unless(Curl_cert_hostcheck(STRCONST("192.168.0.0"), +- STRCONST("192.168.0.0")), "good 5"); ++static struct testcase tests[] = { ++ {"", "", FALSE}, ++ {"a", "", FALSE}, ++ {"", "b", FALSE}, ++ {"a", "b", FALSE}, ++ {"aa", "bb", FALSE}, ++ {"\xff", "\xff", TRUE}, ++ {"aa.aa.aa", "aa.aa.bb", FALSE}, ++ {"aa.aa.aa", "aa.aa.aa", TRUE}, ++ {"aa.aa.aa", "*.aa.bb", FALSE}, ++ {"aa.aa.aa", "*.aa.aa", TRUE}, ++ {"192.168.0.1", "192.168.0.1", TRUE}, ++ {"192.168.0.1", "*.168.0.1", FALSE}, ++ {"192.168.0.1", "*.0.1", FALSE}, ++ {"h.ello", "*.ello", FALSE}, ++ {"h.ello.", "*.ello", FALSE}, ++ {"h.ello", "*.ello.", FALSE}, ++ {"h.e.llo", "*.e.llo", TRUE}, ++ {"h.e.llo", " *.e.llo", FALSE}, ++ {" h.e.llo", "*.e.llo", TRUE}, ++ {"h.e.llo.", "*.e.llo", TRUE}, ++ {"*.e.llo.", "*.e.llo", TRUE}, ++ {"************.e.llo.", "*.e.llo", TRUE}, ++ {"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" ++ "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" ++ "CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC" ++ "DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD" ++ "EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE" ++ ".e.llo.", "*.e.llo", TRUE}, ++ {"\xfe\xfe.e.llo.", "*.e.llo", TRUE}, ++ {"h.e.llo.", "*.e.llo.", TRUE}, ++ {"h.e.llo", "*.e.llo.", TRUE}, ++ {".h.e.llo", "*.e.llo.", FALSE}, ++ {"h.e.llo", "*.*.llo.", FALSE}, ++ {"h.e.llo", "h.*.llo", FALSE}, ++ {"h.e.llo", "h.e.*", FALSE}, ++ {"hello", "*.ello", FALSE}, ++ {"hello", "**llo", FALSE}, ++ {"bar.foo.example.com", "*.example.com", FALSE}, ++ {"foo.example.com", "*.example.com", TRUE}, ++ {"baz.example.net", "b*z.example.net", FALSE}, ++ {"foobaz.example.net", "*baz.example.net", FALSE}, ++ {"xn--l8j.example.local", "x*.example.local", FALSE}, ++ {"xn--l8j.example.net", "*.example.net", TRUE}, ++ {"xn--l8j.example.net", "*j.example.net", FALSE}, ++ {"xn--l8j.example.net", "xn--l8j.example.net", TRUE}, ++ {"xn--l8j.example.net", "xn--l8j.*.net", FALSE}, ++ {"xl8j.example.net", "*.example.net", TRUE}, ++ {"fe80::3285:a9ff:fe46:b619", "*::3285:a9ff:fe46:b619", FALSE}, ++ {"fe80::3285:a9ff:fe46:b619", "fe80::3285:a9ff:fe46:b619", TRUE}, ++ {NULL, NULL, FALSE} ++}; + +-fail_if(Curl_cert_hostcheck(STRCONST("xxx.example.com"), +- STRCONST("www.example.com")), "bad 1"); +-fail_if(Curl_cert_hostcheck(STRCONST("*"), +- STRCONST("www.example.com")),"bad 2"); +-fail_if(Curl_cert_hostcheck(STRCONST("*.*.com"), +- STRCONST("www.example.com")), "bad 3"); +-fail_if(Curl_cert_hostcheck(STRCONST("*.example.com"), +- STRCONST("baa.foo.example.com")), "bad 4"); +-fail_if(Curl_cert_hostcheck(STRCONST("f*.example.com"), +- STRCONST("baa.example.com")), "bad 5"); +-fail_if(Curl_cert_hostcheck(STRCONST("*.com"), +- STRCONST("example.com")), "bad 6"); +-fail_if(Curl_cert_hostcheck(STRCONST("*fail.com"), +- STRCONST("example.com")), "bad 7"); +-fail_if(Curl_cert_hostcheck(STRCONST("*.example."), +- STRCONST("www.example.")), "bad 8"); +-fail_if(Curl_cert_hostcheck(STRCONST("*.example."), +- STRCONST("www.example")), "bad 9"); +-fail_if(Curl_cert_hostcheck(STRCONST(""), STRCONST("www")), "bad 10"); +-fail_if(Curl_cert_hostcheck(STRCONST("*"), STRCONST("www")), "bad 11"); +-fail_if(Curl_cert_hostcheck(STRCONST("*.168.0.0"), +- STRCONST("192.168.0.0")), "bad 12"); +-fail_if(Curl_cert_hostcheck(STRCONST("www.example.com"), +- STRCONST("192.168.0.0")), "bad 13"); +- +-#ifdef ENABLE_IPV6 +-fail_if(Curl_cert_hostcheck(STRCONST("*::3285:a9ff:fe46:b619"), +- STRCONST("fe80::3285:a9ff:fe46:b619")), "bad 14"); +-fail_unless(Curl_cert_hostcheck(STRCONST("fe80::3285:a9ff:fe46:b619"), +- STRCONST("fe80::3285:a9ff:fe46:b619")), +- "good 6"); +-#endif ++UNITTEST_START ++{ ++ int i; ++ for(i = 0; tests[i].host; i++) { ++ if(tests[i].match != Curl_cert_hostcheck(tests[i].pattern, ++ strlen(tests[i].pattern), ++ tests[i].host, ++ strlen(tests[i].host))) { ++ fprintf(stderr, ++ "HOST: %s\n" ++ "PTRN: %s\n" ++ "did %sMATCH\n", ++ tests[i].host, ++ tests[i].pattern, ++ tests[i].match ? "NOT ": ""); ++ unitfail++; ++ } ++ } ++} + +-#endif ++UNITTEST_STOP ++#else + +- /* you end the test code like this: */ ++UNITTEST_START + + UNITTEST_STOP ++#endif |