curl's websocket code did not update the 32 bit mask pattern for each new outgoing frame as the specification says. Instead it used a fixed mask that persisted and was used throughout the entire connection.
A predictable mask pattern allows for a malicious server to induce traffic between the two communicating parties that could be interpreted by an involved proxy (configured or transparent) as genuine, real, HTTP traffic with content and thereby poison its cache. That cached poisoned content could then be served to all users of that proxy. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-10148 Upstream patch: https://github.com/curl/curl/commit/84db7a9eae8468c0445b15aa806fa Signed-off-by: Hitendra Prajapati <[email protected]> --- .../curl/curl/CVE-2025-10148.patch | 57 +++++++++++++++++++ meta/recipes-support/curl/curl_8.7.1.bb | 1 + 2 files changed, 58 insertions(+) create mode 100644 meta/recipes-support/curl/curl/CVE-2025-10148.patch diff --git a/meta/recipes-support/curl/curl/CVE-2025-10148.patch b/meta/recipes-support/curl/curl/CVE-2025-10148.patch new file mode 100644 index 0000000000..d37497febe --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2025-10148.patch @@ -0,0 +1,57 @@ +From 84db7a9eae8468c0445b15aa806fa7fa806fa0f2 Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <[email protected]> +Date: Mon, 8 Sep 2025 14:14:15 +0200 +Subject: [PATCH] ws: get a new mask for each new outgoing frame + +Reported-by: Calvin Ruocco +Closes #18496 + +CVE: CVE-2025-10148 +Upstream-Status: Backport [https://github.com/curl/curl/commit/84db7a9eae8468c0445b15aa806fa] +Signed-off-by: Hitendra Prajapati <[email protected]> +--- + lib/ws.c | 21 +++++++++++++-------- + 1 file changed, 13 insertions(+), 8 deletions(-) + +diff --git a/lib/ws.c b/lib/ws.c +index 5bc5ecc..02e0ef0 100644 +--- a/lib/ws.c ++++ b/lib/ws.c +@@ -614,6 +614,18 @@ static ssize_t ws_enc_write_head(struct Curl_easy *data, + enc->payload_remain = enc->payload_len = payload_len; + ws_enc_info(enc, data, "sending"); + ++ /* 4 bytes random */ ++ ++ result = Curl_rand(data, (unsigned char *)&enc->mask, sizeof(enc->mask)); ++ if(result) ++ return result; ++ ++#ifdef DEBUGBUILD ++ if(getenv("CURL_WS_FORCE_ZERO_MASK")) ++ /* force the bit mask to 0x00000000, effectively disabling masking */ ++ memset(&enc->mask, 0, sizeof(enc->mask)); ++#endif ++ + /* add 4 bytes mask */ + memcpy(&head[hlen], &enc->mask, 4); + hlen += 4; +@@ -802,14 +814,7 @@ CURLcode Curl_ws_accept(struct Curl_easy *data, + subprotocol not requested by the client), the client MUST Fail + the WebSocket Connection. */ + +- /* 4 bytes random */ +- +- result = Curl_rand(data, (unsigned char *)&ws->enc.mask, +- sizeof(ws->enc.mask)); +- if(result) +- return result; +- infof(data, "Received 101, switch to WebSocket; mask %02x%02x%02x%02x", +- ws->enc.mask[0], ws->enc.mask[1], ws->enc.mask[2], ws->enc.mask[3]); ++ infof(data, "Received 101, switch to WebSocket"); + + /* Install our client writer that decodes WS frames payload */ + result = Curl_cwriter_create(&ws_dec_writer, data, &ws_cw_decode, +-- +2.50.1 + diff --git a/meta/recipes-support/curl/curl_8.7.1.bb b/meta/recipes-support/curl/curl_8.7.1.bb index 0af6a41399..81e7e3ea8e 100644 --- a/meta/recipes-support/curl/curl_8.7.1.bb +++ b/meta/recipes-support/curl/curl_8.7.1.bb @@ -25,6 +25,7 @@ SRC_URI = " \ file://CVE-2024-11053-0003.patch \ file://CVE-2025-0167.patch \ file://CVE-2025-9086.patch \ + file://CVE-2025-10148.patch \ " SRC_URI:append:class-nativesdk = " \ -- 2.50.1
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#228944): https://lists.openembedded.org/g/openembedded-core/message/228944 Mute This Topic: https://lists.openembedded.org/mt/117129750/21656 Group Owner: [email protected] Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
