From aa064e512a7d50e20f8e9c5a5249ee8bb2ee82ea Mon Sep 17 00:00:00 2001 From: Ankur Tyagi Date: Thu, 24 Sep 2026 16:32:55 +1200 Subject: [PATCH] strongswan: patch CVE-2026-78123 Use patch[1] provided by strongSwan[2] Details: https://nvd.nist.gov/vuln/detail/cve-2026-78123 [1]https://download.strongswan.org/security/CVE-2026-78123/strongswan-5.0.2-6.0.7_openssl_pkcs7_info_init.patch [2]https://www.strongswan.org/blog/2026/09/07/strongswan-vulnerability-(cve-2026-78123).html Signed-off-by: Ankur Tyagi Signed-off-by: Anuj Mittal --- .../strongswan/CVE-2026-78123.patch | 51 +++++++++++++++++++ .../strongswan/strongswan_6.0.6.bb | 1 + 2 files changed, 52 insertions(+) create mode 100644 meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78123.patch diff --git a/meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78123.patch b/meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78123.patch new file mode 100644 index 0000000000..36e6eb1289 --- /dev/null +++ b/meta-networking/recipes-support/strongswan/strongswan/CVE-2026-78123.patch @@ -0,0 +1,51 @@ +From 23707d346f1f85dba0419c43658a86a80a24f568 Mon Sep 17 00:00:00 2001 +From: Tobias Brunner +Date: Mon, 1 Jun 2026 17:51:35 +0200 +Subject: [PATCH] openssl: Fix undefined memory access when verifying PKCS#7 + containers + +If the signerInfo or recipientInfo structure doesn't contain +issuerAndSerialNumber but instead a subjectKeyIdentifier, then the called +functions will leave the passed name and serial numbers unchanged. While +openssl_x509_name2id() prevents a NULL-pointer dereference, it tries to +DER-encode the object at the passed pointer via i2d_X509_NAME(). +Depending on the stack contents, this likely causes a segmentation fault. + +Fixes: 3c820cdc232a ("Implement PKCS#7 decryption using openssl") +Fixes: c61723c69fb5 ("Implement OpenSSL PKCS#7 signed-data parsing and verification") +Fixes: CVE-2026-78123 + +CVE: CVE-2026-78123 +Upstream-Status: Backport [https://github.com/strongswan/strongswan/commit/e59b4c96990635a482d6532f7905143f2541d8b5] + +Signed-off-by: Ankur Tyagi +--- + src/libstrongswan/plugins/openssl/openssl_pkcs7.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/src/libstrongswan/plugins/openssl/openssl_pkcs7.c b/src/libstrongswan/plugins/openssl/openssl_pkcs7.c +index d9abcf8..b15c8d7 100644 +--- a/src/libstrongswan/plugins/openssl/openssl_pkcs7.c ++++ b/src/libstrongswan/plugins/openssl/openssl_pkcs7.c +@@ -222,8 +222,8 @@ static auth_cfg_t *verify_signature(CMS_SignerInfo *si, + auth_cfg_t *auth, *found = NULL; + identification_t *issuer, *serial; + chunk_t attrs = chunk_empty, sig, attr; +- X509_NAME *name; +- ASN1_INTEGER *snr; ++ X509_NAME *name = NULL; ++ ASN1_INTEGER *snr = NULL; + int i; + + if (CMS_SignerInfo_get0_signer_id(si, NULL, &name, &snr) != 1) +@@ -628,8 +628,8 @@ static bool decrypt(private_openssl_pkcs7_t *this, + identification_t *serial, *issuer; + private_key_t *private; + X509_ALGOR *alg; +- X509_NAME *name; +- ASN1_INTEGER *sn; ++ X509_NAME *name = NULL; ++ ASN1_INTEGER *sn = NULL; + u_char zero = 0; + int oid; + 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 d6176f000e..4d9fe14eb2 100644 --- a/meta-networking/recipes-support/strongswan/strongswan_6.0.6.bb +++ b/meta-networking/recipes-support/strongswan/strongswan_6.0.6.bb @@ -10,6 +10,7 @@ DEPENDS:append = "${@bb.utils.contains('DISTRO_FEATURES', 'tpm2', ' tpm2-tss', SRC_URI = "https://download.strongswan.org/strongswan-${PV}.tar.bz2 \ file://CVE-2026-47895.patch \ + file://CVE-2026-78123.patch \ " SRC_URI[sha256sum] = "07df7cedae56a7f3bb07e66d21a1f9f87e961db70e99184e11d3819413e4f87c"