From 37a2b5cac73ac4ec2cc38ac8be3b2d8f590870a6 Mon Sep 17 00:00:00 2001 From: AlmaLinux RelEng Bot Date: Tue, 3 Mar 2026 09:30:36 -0500 Subject: [PATCH] import UBI nginx-1.24.0-5.module+el9.7.0+24009+e763bdd7.1 --- ...premature-plain-text-response-from-S.patch | 45 +++++++++++++++++++ SPECS/nginx.spec | 14 ++++-- 2 files changed, 56 insertions(+), 3 deletions(-) create mode 100644 SOURCES/0013-Upstream-detect-premature-plain-text-response-from-S.patch diff --git a/SOURCES/0013-Upstream-detect-premature-plain-text-response-from-S.patch b/SOURCES/0013-Upstream-detect-premature-plain-text-response-from-S.patch new file mode 100644 index 0000000..ba85cc4 --- /dev/null +++ b/SOURCES/0013-Upstream-detect-premature-plain-text-response-from-S.patch @@ -0,0 +1,45 @@ +From 93ac6eae019e30fc22d2d5321acb28de549f73aa Mon Sep 17 00:00:00 2001 +From: Roman Arutyunyan +Date: Thu, 29 Jan 2026 13:27:32 +0400 +Subject: [PATCH] Upstream: detect premature plain text response from SSL + backend. + +When connecting to a backend, the connection write event is triggered +first in most cases. However if a response arrives quickly enough, both +read and write events can be triggered together within the same event loop +iteration. In this case the read event handler is called first and the +write event handler is called after it. + +SSL initialization for backend connections happens only in the write event +handler since SSL handshake starts with sending Client Hello. Previously, +if a backend sent a quick plain text response, it could be parsed by the +read event handler prior to starting SSL handshake on the connection. +The change adds protection against parsing such responses on SSL-enabled +connections. +--- + src/http/ngx_http_upstream.c | 9 +++++++++ + 1 file changed, 9 insertions(+) + +diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c +index 2ce9f21..70c3b46 100644 +--- a/src/http/ngx_http_upstream.c ++++ b/src/http/ngx_http_upstream.c +@@ -2461,6 +2461,15 @@ ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u) + return; + } + ++#if (NGX_HTTP_SSL) ++ if (u->ssl && c->ssl == NULL) { ++ ngx_log_error(NGX_LOG_ERR, c->log, 0, ++ "upstream prematurely sent response"); ++ ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR); ++ return; ++ } ++#endif ++ + u->state->bytes_received += n; + + u->buffer.last += n; +-- +2.44.0 + diff --git a/SPECS/nginx.spec b/SPECS/nginx.spec index 26e5dd9..cc20837 100644 --- a/SPECS/nginx.spec +++ b/SPECS/nginx.spec @@ -56,7 +56,7 @@ Name: nginx Epoch: 1 Version: 1.24.0 -Release: 4%{?dist}.1 +Release: 5%{?dist}.1 Summary: A high performance web server and reverse proxy server # BSD License (two clause) @@ -123,6 +123,10 @@ Patch9: 0011-Optimized-chain-link-usage.patch # upstream patch - https://bugzilla.redhat.com/show_bug.cgi?id=2304966 Patch10: 0012-CVE-2024-7347-Buffer-overread-in-the-mp4-module.patch +# https://issues.redhat.com/browse/RHEL-146516 +# upstream patch - https://github.com/nginx/nginx/commit/784fa05025cb8cd0c770f99bc79d2794b9f85b6e +Patch11: 0013-Upstream-detect-premature-plain-text-response-from-S.patch + BuildRequires: make BuildRequires: gcc BuildRequires: gnupg2 @@ -635,8 +639,12 @@ fi %changelog -* Mon Mar 24 2025 Luboš Uhliarik - 1:1.24.0-4.1 -- Resolves: RHEL-84478 - nginx:1.24/nginx: specially crafted MP4 file may cause +* Thu Feb 19 2026 Luboš Uhliarik - 1:1.24.0-5.1 +- Resolves: RHEL-146526 - nginx:1.24/nginx: NGINX: Data injection via + man-in-the-middle attack on TLS proxied connections (CVE-2026-1642) + +* Thu Mar 27 2025 Luboš Uhliarik - 1:1.24.0-5 +- Resolves: RHEL-84480 - nginx:1.24/nginx: specially crafted MP4 file may cause denial of service (CVE-2024-7347) * Tue Jul 16 2024 Luboš Uhliarik - 1:1.24.0-4