diff --git a/0021-curl-7.76.1-CVE-2022-35252.patch b/0021-curl-7.76.1-CVE-2022-35252.patch new file mode 100644 index 0000000..1ccd455 --- /dev/null +++ b/0021-curl-7.76.1-CVE-2022-35252.patch @@ -0,0 +1,136 @@ +From fbc2ac6f06ec13cc872ce7adb870f4d7c7d5dded Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg +Date: Mon, 29 Aug 2022 00:09:17 +0200 +Subject: [PATCH 1/2] cookie: reject cookies with "control bytes" + +Rejects 0x01 - 0x1f (except 0x09) plus 0x7f + +Reported-by: Axel Chong + +Bug: https://curl.se/docs/CVE-2022-35252.html + +CVE-2022-35252 + +Closes #9381 + +Upstream-commit: 8dfc93e573ca740544a2d79ebb0ed786592c65c3 +Signed-off-by: Kamil Dudka +--- + lib/cookie.c | 29 +++++++++++++++++++++++++++++ + 1 file changed, 29 insertions(+) + +diff --git a/lib/cookie.c b/lib/cookie.c +index cb0c03b..e0470a1 100644 +--- a/lib/cookie.c ++++ b/lib/cookie.c +@@ -383,6 +383,30 @@ static void strstore(char **str, const char *newstr) + *str = strdup(newstr); + } + ++/* ++ RFC 6265 section 4.1.1 says a server should accept this range: ++ ++ cookie-octet = %x21 / %x23-2B / %x2D-3A / %x3C-5B / %x5D-7E ++ ++ But Firefox and Chrome as of June 2022 accept space, comma and double-quotes ++ fine. The prime reason for filtering out control bytes is that some HTTP ++ servers return 400 for requests that contain such. ++*/ ++static int invalid_octets(const char *p) ++{ ++ /* Reject all bytes \x01 - \x1f (*except* \x09, TAB) + \x7f */ ++ static const char badoctets[] = { ++ "\x01\x02\x03\x04\x05\x06\x07\x08\x0a" ++ "\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14" ++ "\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x7f" ++ }; ++ size_t vlen, len; ++ /* scan for all the octets that are *not* in cookie-octet */ ++ len = strcspn(p, badoctets); ++ vlen = strlen(p); ++ return (len != vlen); ++} ++ + /* + * remove_expired() removes expired cookies. + */ +@@ -567,6 +591,11 @@ Curl_cookie_add(struct Curl_easy *data, + badcookie = TRUE; + break; + } ++ if(invalid_octets(whatptr) || invalid_octets(name)) { ++ infof(data, "invalid octets in name/value, cookie dropped"); ++ badcookie = TRUE; ++ break; ++ } + } + else if(!len) { + /* this was a "=" with no content, and we must allow +-- +2.37.1 + + +From 1a3e2bd48572761236934651091c899a4d460ef5 Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg +Date: Mon, 29 Aug 2022 00:09:17 +0200 +Subject: [PATCH 2/2] test8: verify that "ctrl-byte cookies" are ignored + +Upstream-commit: 2fc031d834d488854ffc58bf7dbcef7fa7c1fc28 +Signed-off-by: Kamil Dudka +--- + tests/data/test8 | 32 +++++++++++++++++++++++++++++++- + 1 file changed, 31 insertions(+), 1 deletion(-) + +diff --git a/tests/data/test8 b/tests/data/test8 +index a8548e6..8587611 100644 +--- a/tests/data/test8 ++++ b/tests/data/test8 +@@ -46,6 +46,36 @@ Set-Cookie: trailingspace = removed; path=/we/want; + Set-Cookie: nocookie=yes; path=/WE; + Set-Cookie: blexp=yesyes; domain=%HOSTIP; domain=%HOSTIP; expiry=totally bad; + Set-Cookie: partialip=nono; domain=.0.0.1; ++Set-Cookie: cookie1=%hex[%01-junk]hex% ++Set-Cookie: cookie2=%hex[%02-junk]hex% ++Set-Cookie: cookie3=%hex[%03-junk]hex% ++Set-Cookie: cookie4=%hex[%04-junk]hex% ++Set-Cookie: cookie5=%hex[%05-junk]hex% ++Set-Cookie: cookie6=%hex[%06-junk]hex% ++Set-Cookie: cookie7=%hex[%07-junk]hex% ++Set-Cookie: cookie8=%hex[%08-junk]hex% ++Set-Cookie: cookie9=%hex[junk-%09-]hex% ++Set-Cookie: cookie11=%hex[%0b-junk]hex% ++Set-Cookie: cookie12=%hex[%0c-junk]hex% ++Set-Cookie: cookie14=%hex[%0e-junk]hex% ++Set-Cookie: cookie15=%hex[%0f-junk]hex% ++Set-Cookie: cookie16=%hex[%10-junk]hex% ++Set-Cookie: cookie17=%hex[%11-junk]hex% ++Set-Cookie: cookie18=%hex[%12-junk]hex% ++Set-Cookie: cookie19=%hex[%13-junk]hex% ++Set-Cookie: cookie20=%hex[%14-junk]hex% ++Set-Cookie: cookie21=%hex[%15-junk]hex% ++Set-Cookie: cookie22=%hex[%16-junk]hex% ++Set-Cookie: cookie23=%hex[%17-junk]hex% ++Set-Cookie: cookie24=%hex[%18-junk]hex% ++Set-Cookie: cookie25=%hex[%19-junk]hex% ++Set-Cookie: cookie26=%hex[%1a-junk]hex% ++Set-Cookie: cookie27=%hex[%1b-junk]hex% ++Set-Cookie: cookie28=%hex[%1c-junk]hex% ++Set-Cookie: cookie29=%hex[%1d-junk]hex% ++Set-Cookie: cookie30=%hex[%1e-junk]hex% ++Set-Cookie: cookie31=%hex[%1f-junk]hex% ++Set-Cookie: cookie31=%hex[%7f-junk]hex% + + + +@@ -60,7 +90,7 @@ GET /we/want/%TESTNUMBER HTTP/1.1 + Host: %HOSTIP:%HTTPPORT + User-Agent: curl/%VERSION + Accept: */* +-Cookie: name with space=is weird but; trailingspace=removed; cookie=perhaps; cookie=yes; foobar=name; blexp=yesyes ++Cookie: name with space=is weird but; trailingspace=removed; cookie=perhaps; cookie=yes; foobar=name; blexp=yesyes; cookie9=junk- - + + + +-- +2.37.1 + diff --git a/curl.spec b/curl.spec index 3660f44..e38c1e7 100644 --- a/curl.spec +++ b/curl.spec @@ -1,7 +1,7 @@ Summary: A utility for getting files from remote servers (FTP, HTTP, and others) Name: curl Version: 7.76.1 -Release: 19%{?dist} +Release: 20%{?dist} License: MIT Source: https://curl.se/download/%{name}-%{version}.tar.xz @@ -62,6 +62,9 @@ Patch19: 0019-curl-7.76.1-CVE-2022-32207.patch # fix build failure caused by openldap rebase (#2094159) Patch20: 0020-curl-7.76.1-openldap-rebase.patch +# control code in cookie denial of service (CVE-2022-35252) +Patch21: 0021-curl-7.76.1-CVE-2022-35252.patch + # patch making libcurl multilib ready Patch101: 0101-curl-7.32.0-multilib.patch @@ -256,6 +259,7 @@ be installed. %patch17 -p1 %patch19 -p1 %patch20 -p1 +%patch21 -p1 # Fedora patches %patch101 -p1 @@ -476,6 +480,9 @@ rm -f ${RPM_BUILD_ROOT}%{_libdir}/libcurl.la %{_libdir}/libcurl.so.4.[0-9].[0-9].minimal %changelog +* Fri Sep 02 2022 Kamil Dudka - 7.76.1-20 +- control code in cookie denial of service (CVE-2022-35252) + * Wed Jun 29 2022 Kamil Dudka - 7.76.1-19 - fix unpreserved file permissions (CVE-2022-32207) - fix HTTP compression denial of service (CVE-2022-32206)