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package/mongoose: patch CVE-2025-65502

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- CVE-2025-65502:
    Null pointer dereference in add_ca_certs() in Cesanta Mongoose before
    7.2 allows remote attackers to cause a denial of service via TLS
    initialization where SSL_CTX_get_cert_store() returns NULL.

For more information, see:
  - https://www.cve.org/CVERecord?id=CVE-2025-65502
  - 64abf061bf

(cherry picked from commit f536fd4a2e)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
This commit is contained in:
Thomas Perale
2026-03-16 12:37:14 +01:00
parent ae1d606f48
commit 0f53b596f1
2 changed files with 40 additions and 0 deletions
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37
package/mongoose/0001-improve-resiliency.patch Normal file
View File

@@ -0,0 +1,37 @@
From 64abf061bf018fd78f31c200a57a3fb04f9f3ef2 Mon Sep 17 00:00:00 2001
From: "Sergio R. Caprile" <scaprile@cesanta.com>
Date: Mon, 13 Oct 2025 10:43:45 -0300
Subject: [PATCH] improve resiliency
CVE: CVE-2025-65502
Upstream: https://github.com/cesanta/mongoose/commit/64abf061bf018fd78f31c200a57a3fb04f9f3ef2
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
---
mongoose.c | 1 +
src/tls_openssl.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/mongoose.c b/mongoose.c
index 4c72be8201..f860ab3b07 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -14581,6 +14581,7 @@ static STACK_OF(X509_INFO) * load_ca_certs(struct mg_str ca) {
static bool add_ca_certs(SSL_CTX *ctx, STACK_OF(X509_INFO) * certs) {
int i;
X509_STORE *cert_store = SSL_CTX_get_cert_store(ctx);
+ if (cert_store == NULL) return false;
for (i = 0; i < sk_X509_INFO_num(certs); i++) {
X509_INFO *cert_info = sk_X509_INFO_value(certs, i);
if (cert_info->x509 && !X509_STORE_add_cert(cert_store, cert_info->x509))
diff --git a/src/tls_openssl.c b/src/tls_openssl.c
index 37838d95ba..f51d6dd8b7 100644
--- a/src/tls_openssl.c
+++ b/src/tls_openssl.c
@@ -39,6 +39,7 @@ static STACK_OF(X509_INFO) * load_ca_certs(struct mg_str ca) {
static bool add_ca_certs(SSL_CTX *ctx, STACK_OF(X509_INFO) * certs) {
int i;
X509_STORE *cert_store = SSL_CTX_get_cert_store(ctx);
+ if (cert_store == NULL) return false;
for (i = 0; i < sk_X509_INFO_num(certs); i++) {
X509_INFO *cert_info = sk_X509_INFO_value(certs, i);
if (cert_info->x509 && !X509_STORE_add_cert(cert_store, cert_info->x509))

3
package/mongoose/mongoose.mk
View File

@@ -13,6 +13,9 @@ MONGOOSE_INSTALL_STAGING = YES
# static library
MONGOOSE_INSTALL_TARGET = NO
# 0001-improve-resiliency.patch
MONGOOSE_IGNORE_CVES += CVE-2025-65502
MONGOOSE_CFLAGS = $(TARGET_CFLAGS) -std=gnu99
ifeq ($(BR2_PACKAGE_OPENSSL),y)