On Thu Mar 26, 2026 at 11:00 AM CET, Sudhir Dumbhare -X (sudumbha - E INFOCHIPS
PRIVATE LIMITED at Cisco) via lists.openembedded.org wrote:
> From: Sudhir Dumbhare <[email protected]>
>
> Applying the fixes from upstream commit [3] and [4] cause merge conflicts
> and require other dependent commits to be backported. Instead, backport
> the Ubuntu-provided patches [1], which fixes the vulnerability as mentioned
> in changelog [2].
>
> [1]
> http://archive.ubuntu.com/ubuntu/pool/main/c/curl/curl_8.5.0-2ubuntu10.8.debian.tar.xz
> debian/patches/CVE-2026-1965-1.patch
> debian/patches/CVE-2026-1965-2.patch
> [2]
> https://changelogs.ubuntu.com/changelogs/pool/main/c/curl/curl_8.5.0-2ubuntu10.8/changelog
> [3]
> https://github.com/curl/curl/commit/34fa034d9a390c4bd65e2d05262755ec8646ac12
> [4]
> https://github.com/curl/curl/commit/f1a39f221d57354990e3eeeddc3404aede2aff70
>
> Reference:
> https://nvd.nist.gov/vuln/detail/CVE-2026-1965
> https://curl.se/docs/CVE-2026-1965.html
> https://ubuntu.com/security/CVE-2026-1965
>
> Signed-off-by: Sudhir Dumbhare <[email protected]>
> ---
Hello,
Looks like this patch break tests on arm64:
WARNING: core-image-ptest-curl-1.0-r0 do_testimage: There were failing ptests.
[...]
AssertionError:
Failed ptests:
{'curl': ['2006_-_.netrc_default_with_redirect_plus_oauth2-bearer_-_data']}
Can you look at this?
And, while you are fixing this patch, can you please resend your series
(the 3 curl CVE fixes) as 1 series instead of 3 individual patches?
Thanks!
> Changes from v1 -> v2:
> - Updated with the correct patch series numbering
>
> .../curl/curl/CVE-2026-1965_p1.patch | 98 +++++++++++++++++++
> .../curl/curl/CVE-2026-1965_p2.patch | 30 ++++++
> meta/recipes-support/curl/curl_8.7.1.bb | 2 +
> 3 files changed, 130 insertions(+)
> create mode 100644 meta/recipes-support/curl/curl/CVE-2026-1965_p1.patch
> create mode 100644 meta/recipes-support/curl/curl/CVE-2026-1965_p2.patch
>
> diff --git a/meta/recipes-support/curl/curl/CVE-2026-1965_p1.patch
> b/meta/recipes-support/curl/curl/CVE-2026-1965_p1.patch
> new file mode 100644
> index 0000000000..8079b453eb
> --- /dev/null
> +++ b/meta/recipes-support/curl/curl/CVE-2026-1965_p1.patch
> @@ -0,0 +1,98 @@
> +Backport of:
> +
> +From 34fa034d9a390c4bd65e2d05262755ec8646ac12 Mon Sep 17 00:00:00 2001
> +From: Daniel Stenberg <[email protected]>
> +Date: Thu, 5 Feb 2026 08:34:21 +0100
> +Subject: [PATCH] url: fix reuse of connections using HTTP Negotiate
> +
> +Assume Negotiate means connection-based
> +
> +Reported-by: Zhicheng Chen
> +Closes #20534
> +
> +CVE: CVE-2026-1965
> +Upstream-Status: Backport
> [https://github.com/curl/curl/commit/34fa034d9a390c4bd65e2d05262755ec8646ac12]
> +
> +Signed-off-by: Sudhir Dumbhare <[email protected]>
> +---
> + lib/url.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++----
> + 1 file changed, 82 insertions(+), 5 deletions(-)
> +
> +--- a/lib/url.c
> ++++ b/lib/url.c
> +@@ -935,6 +935,18 @@ ConnectionExists(struct Curl_easy *data,
> + bool wantProxyNTLMhttp = FALSE;
> + #endif
> + #endif
> ++
> ++#if !defined(CURL_DISABLE_HTTP) && defined(USE_SPNEGO)
> ++ bool wantNegohttp =
> ++ (data->state.authhost.want & CURLAUTH_NEGOTIATE) &&
> ++ (needle->handler->protocol & PROTO_FAMILY_HTTP);
> ++#ifndef CURL_DISABLE_PROXY
> ++ bool wantProxyNegohttp =
> ++ needle->bits.proxy_user_passwd &&
> ++ (data->state.authproxy.want & CURLAUTH_NEGOTIATE) &&
> ++ (needle->handler->protocol & PROTO_FAMILY_HTTP);
> ++#endif
> ++#endif
> + /* plain HTTP with upgrade */
> + bool h2upgrade = (data->state.httpwant == CURL_HTTP_VERSION_2_0) &&
> + (needle->handler->protocol & CURLPROTO_HTTP);
> +@@ -1272,6 +1284,56 @@ ConnectionExists(struct Curl_easy *data,
> + }
> + #endif
> +
> ++#ifdef USE_SPNEGO
> ++ /* If we are looking for an HTTP+Negotiate connection, check if this is
> ++ already authenticating with the right credentials. If not, keep looking
> ++ so that we can reuse Negotiate connections if possible. */
> ++ if(wantNegohttp) {
> ++ if(Curl_timestrcmp(needle->user, check->user) ||
> ++ Curl_timestrcmp(needle->passwd, check->passwd))
> ++ continue;
> ++ }
> ++ else if(check->http_negotiate_state != GSS_AUTHNONE) {
> ++ /* Connection is using Negotiate auth but we do not want Negotiate */
> ++ continue;
> ++ }
> ++
> ++#ifndef CURL_DISABLE_PROXY
> ++ /* Same for Proxy Negotiate authentication */
> ++ if(wantProxyNegohttp) {
> ++ /* Both check->http_proxy.user and check->http_proxy.passwd can be
> ++ * NULL */
> ++ if(!check->http_proxy.user || !check->http_proxy.passwd)
> ++ continue;
> ++
> ++ if(Curl_timestrcmp(needle->http_proxy.user,
> ++ check->http_proxy.user) ||
> ++ Curl_timestrcmp(needle->http_proxy.passwd,
> ++ check->http_proxy.passwd))
> ++ continue;
> ++ }
> ++ else if(check->proxy_negotiate_state != GSS_AUTHNONE) {
> ++ /* Proxy connection is using Negotiate auth but we do not want
> Negotiate */
> ++ continue;
> ++ }
> ++#endif
> ++ if(wantNTLMhttp || wantProxyNTLMhttp) {
> ++ /* Credentials are already checked, we may use this connection. We MUST
> ++ * use a connection where it has already been fully negotiated. If it
> has
> ++ * not, we keep on looking for a better one. */
> ++ chosen = check;
> ++ if((wantNegohttp &&
> ++ (check->http_negotiate_state != GSS_AUTHNONE)) ||
> ++ (wantProxyNegohttp &&
> ++ (check->proxy_negotiate_state != GSS_AUTHNONE))) {
> ++ /* We must use this connection, no other */
> ++ *force_reuse = TRUE;
> ++ break;
> ++ }
> ++ continue; /* get another */
> ++ }
> ++#endif
> ++
> + if(CONN_INUSE(check)) {
> + DEBUGASSERT(canmultiplex);
> + DEBUGASSERT(check->bits.multiplex);
> diff --git a/meta/recipes-support/curl/curl/CVE-2026-1965_p2.patch
> b/meta/recipes-support/curl/curl/CVE-2026-1965_p2.patch
> new file mode 100644
> index 0000000000..1fdb658f23
> --- /dev/null
> +++ b/meta/recipes-support/curl/curl/CVE-2026-1965_p2.patch
> @@ -0,0 +1,30 @@
> +Backport of:
> +
> +From f1a39f221d57354990e3eeeddc3404aede2aff70 Mon Sep 17 00:00:00 2001
> +From: Daniel Stenberg <[email protected]>
> +Date: Sat, 21 Feb 2026 18:11:41 +0100
> +Subject: [PATCH] url: fix copy and paste url_match_auth_nego mistake
> +
> +Follow-up to 34fa034
> +Reported-by: dahmono on github
> +Closes #20662
> +
> +CVE: CVE-2026-1965
> +Upstream-Status: Backport
> [https://github.com/curl/curl/commit/f1a39f221d57354990e3eeeddc3404aede2aff70]
> +
> +Signed-off-by: Sudhir Dumbhare <[email protected]>
> +---
> + lib/url.c | 2 +-
> + 1 file changed, 1 insertion(+), 1 deletion(-)
> +
> +--- a/lib/url.c
> ++++ b/lib/url.c
> +@@ -1317,7 +1317,7 @@ ConnectionExists(struct Curl_easy *data,
> + continue;
> + }
> + #endif
> +- if(wantNTLMhttp || wantProxyNTLMhttp) {
> ++ if(wantNegohttp || wantProxyNegohttp) {
> + /* Credentials are already checked, we may use this connection. We MUST
> + * use a connection where it has already been fully negotiated. If it
> has
> + * not, we keep on looking for a better one. */
> diff --git a/meta/recipes-support/curl/curl_8.7.1.bb
> b/meta/recipes-support/curl/curl_8.7.1.bb
> index 9e37684b2c..e2f6f8472f 100644
> --- a/meta/recipes-support/curl/curl_8.7.1.bb
> +++ b/meta/recipes-support/curl/curl_8.7.1.bb
> @@ -32,6 +32,8 @@ SRC_URI = " \
> file://CVE-2025-14819.patch \
> file://CVE-2025-15079.patch \
> file://CVE-2025-15224.patch \
> + file://CVE-2026-1965_p1.patch \
> + file://CVE-2026-1965_p2.patch \
> "
>
> SRC_URI:append:class-nativesdk = " \
--
Yoann Congal
Smile ECS
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