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nginx: Fix for CVE-2026-27784

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Pick patch from [1] which mentioned in debian report with [2]
[1] https://github.com/nginx/nginx/commit/b23ac73b00313d159a99636c21ef71b828781018
[2] https://security-tracker.debian.org/tracker/CVE-2026-27784

More details: https://nvd.nist.gov/vuln/detail/CVE-2026-27784

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Hitendra Prajapati
2026-04-06 10:58:23 +05:30
committed by Anuj Mittal
parent 1ad0d777d1
commit 9310c3b1a4
2 changed files with 89 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-webserver/recipes-httpd/nginx/files/CVE-2026-27784.patch
+88
View File
@@ -0,0 +1,88 @@
From b23ac73b00313d159a99636c21ef71b828781018 Mon Sep 17 00:00:00 2001
From: Roman Arutyunyan <arut@nginx.com>
Date: Mon, 2 Mar 2026 21:12:34 +0400
Subject: [PATCH] Mp4: fixed possible integer overflow on 32-bit platforms.
Previously, a 32-bit overflow could happen while validating atom entries
count. This allowed processing of an invalid atom with entrires beyond
its boundaries with reads and writes outside of the allocated mp4 buffer.
Reported by Prabhav Srinath (sprabhav7).
CVE: CVE-2026-27784
Upstream-Status: Backport [https://github.com/nginx/nginx/commit/b23ac73b00313d159a99636c21ef71b828781018]
Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
---
src/http/modules/ngx_http_mp4_module.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/src/http/modules/ngx_http_mp4_module.c b/src/http/modules/ngx_http_mp4_module.c
index 041ad26..a7f8be7 100644
--- a/src/http/modules/ngx_http_mp4_module.c
+++ b/src/http/modules/ngx_http_mp4_module.c
@@ -2294,7 +2294,7 @@ ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
"mp4 time-to-sample entries:%uD", entries);
if (ngx_mp4_atom_data_size(ngx_mp4_stts_atom_t)
- + entries * sizeof(ngx_mp4_stts_entry_t) > atom_data_size)
+ + (uint64_t) entries * sizeof(ngx_mp4_stts_entry_t) > atom_data_size)
{
ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
"\"%s\" mp4 stts atom too small", mp4->file.name.data);
@@ -2597,7 +2597,7 @@ ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
atom->last = atom_table;
if (ngx_mp4_atom_data_size(ngx_http_mp4_stss_atom_t)
- + entries * sizeof(uint32_t) > atom_data_size)
+ + (uint64_t) entries * sizeof(uint32_t) > atom_data_size)
{
ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
"\"%s\" mp4 stss atom too small", mp4->file.name.data);
@@ -2802,7 +2802,7 @@ ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
atom->last = atom_table;
if (ngx_mp4_atom_data_size(ngx_mp4_ctts_atom_t)
- + entries * sizeof(ngx_mp4_ctts_entry_t) > atom_data_size)
+ + (uint64_t) entries * sizeof(ngx_mp4_ctts_entry_t) > atom_data_size)
{
ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
"\"%s\" mp4 ctts atom too small", mp4->file.name.data);
@@ -2984,7 +2984,7 @@ ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
"sample-to-chunk entries:%uD", entries);
if (ngx_mp4_atom_data_size(ngx_mp4_stsc_atom_t)
- + entries * sizeof(ngx_mp4_stsc_entry_t) > atom_data_size)
+ + (uint64_t) entries * sizeof(ngx_mp4_stsc_entry_t) > atom_data_size)
{
ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
"\"%s\" mp4 stsc atom too small", mp4->file.name.data);
@@ -3362,7 +3362,7 @@ ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
if (size == 0) {
if (ngx_mp4_atom_data_size(ngx_mp4_stsz_atom_t)
- + entries * sizeof(uint32_t) > atom_data_size)
+ + (uint64_t) entries * sizeof(uint32_t) > atom_data_size)
{
ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
"\"%s\" mp4 stsz atom too small",
@@ -3521,7 +3521,7 @@ ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries);
if (ngx_mp4_atom_data_size(ngx_mp4_stco_atom_t)
- + entries * sizeof(uint32_t) > atom_data_size)
+ + (uint64_t) entries * sizeof(uint32_t) > atom_data_size)
{
ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
"\"%s\" mp4 stco atom too small", mp4->file.name.data);
@@ -3737,7 +3737,7 @@ ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size)
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries);
if (ngx_mp4_atom_data_size(ngx_mp4_co64_atom_t)
- + entries * sizeof(uint64_t) > atom_data_size)
+ + (uint64_t) entries * sizeof(uint64_t) > atom_data_size)
{
ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0,
"\"%s\" mp4 co64 atom too small", mp4->file.name.data);
--
2.50.1
meta-webserver/recipes-httpd/nginx/nginx.inc
+1
View File
@@ -28,6 +28,7 @@ SRC_URI = " \
file://CVE-2025-53859.patch \
file://CVE-2025-23419.patch \
file://CVE-2026-1642.patch \
file://CVE-2026-27784.patch \
"
inherit siteinfo update-rc.d useradd systemd