From: Robert Joslyn <robert.jos...@redrectangle.org> https://curl.se/docs/CVE-2022-35252.html
Signed-off-by: Robert Joslyn <robert.jos...@redrectangle.org> Signed-off-by: Steve Sakoman <st...@sakoman.com> --- .../curl/curl/CVE-2022-35252.patch | 72 +++++++++++++++++++ meta/recipes-support/curl/curl_7.82.0.bb | 1 + 2 files changed, 73 insertions(+) create mode 100644 meta/recipes-support/curl/curl/CVE-2022-35252.patch diff --git a/meta/recipes-support/curl/curl/CVE-2022-35252.patch b/meta/recipes-support/curl/curl/CVE-2022-35252.patch new file mode 100644 index 0000000000..7b6f81bd02 --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2022-35252.patch @@ -0,0 +1,72 @@ +From 62c09239ac4e08239c8e363b06901fc80637d8c7 Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <dan...@haxx.se> +Date: Mon, 29 Aug 2022 00:09:17 +0200 +Subject: [PATCH] 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-Status: Backport [https://github.com/curl/curl/commit/8dfc93e573ca740544a2d79ebb] + +Signed-off-by: Robert Joslyn <robert.jos...@redrectangle.org> +--- + 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 +@@ -438,6 +438,30 @@ static bool bad_domain(const char *domain) + return TRUE; + } + ++/* ++ 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); ++} ++ + /* + * Curl_cookie_add + * +@@ -590,6 +614,11 @@ 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) { + /* +-- +2.35.1 + diff --git a/meta/recipes-support/curl/curl_7.82.0.bb b/meta/recipes-support/curl/curl_7.82.0.bb index 67de0220c6..5368c91f5c 100644 --- a/meta/recipes-support/curl/curl_7.82.0.bb +++ b/meta/recipes-support/curl/curl_7.82.0.bb @@ -28,6 +28,7 @@ SRC_URI = "https://curl.se/download/${BP}.tar.xz \ file://CVE-2022-32206.patch \ file://CVE-2022-32207.patch \ file://CVE-2022-32208.patch \ + file://CVE-2022-35252.patch \ " SRC_URI[sha256sum] = "0aaa12d7bd04b0966254f2703ce80dd5c38dbbd76af0297d3d690cdce58a583c" -- 2.25.1
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