[oe][meta-networking][wrynose][PATCH 11/24] strongswan: patch CVE-2026-78131

[ankur.tyagi85@gmail.com]

From: Ankur Tyagi <ankur.tyagi85@gmail.com>

Use patch[1] provided by strongSwan[2]

Details:
https://nvd.nist.gov/vuln/detail/cve-2026-78131

[1]https://download.strongswan.org/security/CVE-2026-78131/strongswan-5.5.3-6.0.7_x509_ac_leaks.patch
[2]https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78131).html

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
 .../strongswan/CVE-2026-78131.patch           | 86 +++++++++++++++++++
 .../strongswan/strongswan_6.0.6.bb            |  1 +
 2 files changed, 87 insertions(+)
 create mode 100644 meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78131.patch

diff --git a/meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78131.patch b/meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78131.patch
new file mode 100644
index 0000000000..da53f8e5a0
--- /dev/null
+++ b/meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78131.patch
@@ -0,0 +1,86 @@
+From d1d29ac675b42a8c4a6454db84803bfecf5a0d99 Mon Sep 17 00:00:00 2001
+From: Tobias Brunner <tobias@strongswan.org>
+Date: Fri, 12 Jun 2026 15:55:43 +0200
+Subject: [PATCH] x509: Fix memory leaks when parsing attribute certificates
+
+This can be triggered by an attribute certificate with lots of GeneralName
+entries or AuthorityKeyIdentifier extensions.  There is no verification
+before the certificate is parsed.
+
+Fixes: 3134379ac7f1 ("x509: Fix some whitespaces and do some minor style cleanups in acert")
+Fixes: 26930a8c3e42 ("certificate factory can load certs from file")
+Fixes: CVE-2026-78131
+
+CVE: CVE-2026-78131
+Upstream-Status: Backport [1][2]
+
+[1]https://github.com/strongswan/strongswan/commit/23c9b9a2708e4958292d828424523fa63c0be829
+[2]https://github.com/strongswan/strongswan/commit/9762cc3b091b423543510113a5d05215daf16951
+
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ src/libstrongswan/plugins/x509/x509_ac.c | 33 +++++++-----------------
+ 1 file changed, 9 insertions(+), 24 deletions(-)
+
+diff --git a/src/libstrongswan/plugins/x509/x509_ac.c b/src/libstrongswan/plugins/x509/x509_ac.c
+index 3fc5de2..68b7cf9 100644
+--- a/src/libstrongswan/plugins/x509/x509_ac.c
++++ b/src/libstrongswan/plugins/x509/x509_ac.c
+@@ -186,41 +186,25 @@ extern bool x509_parse_generalNames(chunk_t blob, int level0, bool implicit,
+ static bool parse_directoryName(chunk_t blob, int level, bool implicit,
+ 								identification_t **name)
+ {
+-	identification_t *directoryName;
+-	enumerator_t *enumerator;
+-	bool first = TRUE;
+ 	linked_list_t *list;
+ 
+ 	list = linked_list_create();
+ 	if (!x509_parse_generalNames(blob, level, implicit, list))
+ 	{
+-		list->destroy(list);
++		list->destroy_offset(list, offsetof(identification_t, destroy));
+ 		return FALSE;
+ 	}
+-
+-	enumerator = list->create_enumerator(list);
+-	while (enumerator->enumerate(enumerator, &directoryName))
+-	{
+-		if (first)
+-		{
+-			*name = directoryName;
+-			first = FALSE;
+-		}
+-		else
+-		{
+-			DBG1(DBG_ASN, "more than one directory name - first selected");
+-			directoryName->destroy(directoryName);
+-			break;
+-		}
+-	}
+-	enumerator->destroy(enumerator);
+-	list->destroy(list);
+-
+-	if (first)
++	if (list->remove_first(list, (void**)name) != SUCCESS)
+ 	{
+ 		DBG1(DBG_ASN, "no directoryName found");
++		list->destroy(list);
+ 		return FALSE;
+ 	}
++	if (list->get_count(list))
++	{
++		DBG1(DBG_ASN, "more than one directory name - first selected");
++	}
++	list->destroy_offset(list, offsetof(identification_t, destroy));
+ 	return TRUE;
+ }
+ 
+@@ -539,6 +523,7 @@ static bool parse_certificate(private_x509_ac_t *this)
+ 						DBG2(DBG_ASN, "  need to parse crlDistributionPoints");
+ 						break;
+ 					case OID_AUTHORITY_KEY_ID:
++						chunk_free(&this->authKeyIdentifier);
+ 						this->authKeyIdentifier =
+ 								x509_parse_authorityKeyIdentifier(object,
+ 											level, &this->authKeySerialNumber);
diff --git a/meta-networking/recipes-support/strongswan/strongswan_6.0.6.bb b/meta-networking/recipes-support/strongswan/strongswan_6.0.6.bb
index 4d13507151..19f1cc2f69 100644
--- a/meta-networking/recipes-support/strongswan/strongswan_6.0.6.bb
+++ b/meta-networking/recipes-support/strongswan/strongswan_6.0.6.bb
@@ -16,6 +16,7 @@ SRC_URI = "https://download.strongswan.org/strongswan-${PV}.tar.bz2 \
            file://CVE-2026-78127.patch \
            file://CVE-2026-78129.patch \
            file://CVE-2026-78133.patch \
+           file://CVE-2026-78131.patch \
 "
 
 SRC_URI[sha256sum] = "07df7cedae56a7f3bb07e66d21a1f9f87e961db70e99184e11d3819413e4f87c"