azurelinux-security · azurelinux-security · Feb 9, 2026
diff --git a/SPECS/hvloader/CVE-2025-69419.patch b/SPECS/hvloader/CVE-2025-69419.patch
@@ -0,0 +1,54 @@
+From 481f777d880635b57a9eee029ac99336c1d7deca Mon Sep 17 00:00:00 2001
+From: AllSpark <allspark@microsoft.com>
+Date: Mon, 9 Feb 2026 13:29:17 +0000
+Subject: [PATCH] CryptoPkg/OpensslLib: Check return code of
+ UTF8_putc\n\nBackport upstream patch to check return codes in UTF8
+ conversions.\n- In asn1/a_strex.c: initialize utflen inline and check for <0,
+ return -1.\n- In pkcs12/p12_utl.c: handle negative return from bmp_to_utf8,
+ free buffer and return NULL.\n\nReviewed-by: Nikola Pajkovsky
+ <nikolap@openssl.org>\nReviewed-by: Viktor Dukhovni
+ <viktor@openssl.org>\nSigned-off-by: Norbert Pocs <norbertp@openssl.org>
+
+Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
+Upstream-reference: AI Backport of /tmp/backport_candidates/2.0/hvloader/CVE-2025-69421
+---
+ CryptoPkg/Library/OpensslLib/openssl/crypto/asn1/a_strex.c  | 6 ++++--
+ .../Library/OpensslLib/openssl/crypto/pkcs12/p12_utl.c      | 5 +++++
+ 2 files changed, 9 insertions(+), 2 deletions(-)
+
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/asn1/a_strex.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/asn1/a_strex.c
+index 284dde27..843b0f94 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/asn1/a_strex.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/asn1/a_strex.c
+@@ -203,8 +203,10 @@ static int do_buf(unsigned char *buf, int buflen,
+             orflags = CHARTYPE_LAST_ESC_2253;
+         if (type & BUF_TYPE_CONVUTF8) {
+             unsigned char utfbuf[6];
+-            int utflen;
+-            utflen = UTF8_putc(utfbuf, sizeof(utfbuf), c);
++            int utflen = UTF8_putc(utfbuf, sizeof(utfbuf), c);
++
++            if (utflen < 0)
++                return -1; /* error happened with UTF8 */
+             for (i = 0; i < utflen; i++) {
+                 /*
+                  * We don't need to worry about setting orflags correctly
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_utl.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_utl.c
+index 43b9e3a5..4998fccf 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_utl.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_utl.c
+@@ -207,6 +207,11 @@ char *OPENSSL_uni2utf8(const unsigned char *uni, int unilen)
+     /* re-run the loop emitting UTF-8 string */
+     for (asclen = 0, i = 0; i < unilen; ) {
+         j = bmp_to_utf8(asctmp+asclen, uni+i, unilen-i);
++        /* when UTF8_putc fails */
++        if (j < 0) {
++            OPENSSL_free(asctmp);
++            return NULL;
++        }
+         if (j == 4) i += 4;
+         else        i += 2;
+         asclen += j;
+-- 
+2.45.4
+
diff --git a/SPECS/hvloader/CVE-2025-69420.patch b/SPECS/hvloader/CVE-2025-69420.patch
@@ -0,0 +1,38 @@
+From 6b084599cb78c89286596b84c6f8def222615329 Mon Sep 17 00:00:00 2001
+From: AllSpark <allspark@microsoft.com>
+Date: Mon, 9 Feb 2026 13:29:05 +0000
+Subject: [PATCH] Backport: Verify ASN1 object's types before accessing as
+ sequence in ess_get_signing_cert(_v2). Prevent potential type confusion by
+ ensuring attribute type is V_ASN1_SEQUENCE before decoding.
+
+Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
+Upstream-reference: AI Backport of /tmp/backport_candidates/2.0/hvloader/CVE-2025-69420
+---
+ .../Library/OpensslLib/openssl/crypto/ts/ts_rsp_verify.c      | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/ts/ts_rsp_verify.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/ts/ts_rsp_verify.c
+index 7fe3d27e..5d452d26 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/ts/ts_rsp_verify.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/ts/ts_rsp_verify.c
+@@ -262,7 +262,7 @@ static ESS_SIGNING_CERT *ess_get_signing_cert(PKCS7_SIGNER_INFO *si)
+     ASN1_TYPE *attr;
+     const unsigned char *p;
+     attr = PKCS7_get_signed_attribute(si, NID_id_smime_aa_signingCertificate);
+-    if (!attr)
++    if (attr == NULL || attr->type != V_ASN1_SEQUENCE)
+         return NULL;
+     p = attr->value.sequence->data;
+     return d2i_ESS_SIGNING_CERT(NULL, &p, attr->value.sequence->length);
+@@ -274,7 +274,7 @@ static ESS_SIGNING_CERT_V2 *ess_get_signing_cert_v2(PKCS7_SIGNER_INFO *si)
+     const unsigned char *p;
+
+     attr = PKCS7_get_signed_attribute(si, NID_id_smime_aa_signingCertificateV2);
+-    if (attr == NULL)
++    if (attr == NULL || attr->type != V_ASN1_SEQUENCE)
+         return NULL;
+     p = attr->value.sequence->data;
+     return d2i_ESS_SIGNING_CERT_V2(NULL, &p, attr->value.sequence->length);
+-- 
+2.45.4
+
diff --git a/SPECS/hvloader/CVE-2025-69421.patch b/SPECS/hvloader/CVE-2025-69421.patch
@@ -0,0 +1,41 @@
+From 99e4f3d828fc2428d176d368bb2dca09089ed751 Mon Sep 17 00:00:00 2001
+From: AllSpark <allspark@microsoft.com>
+Date: Mon, 9 Feb 2026 13:29:26 +0000
+Subject: [PATCH] CryptoPkg/OpensslLib: PKCS12_item_decrypt_d2i(): Check oct
+ argument for NULL
+
+Backport of upstream fix that added a NULL check for the OCTET STRING
+argument before dereferencing it in PKCS12 item decrypt routine.
+
+In this tree, the non-_ex variant is present, so apply the same fix
+using legacy error reporting (PKCS12err with ERR_R_PASSED_NULL_PARAMETER).
+
+Prevents potential NULL dereference. Mirrors upstream change for
+PKCS12_item_decrypt_d2i_ex().
+
+Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
+Upstream-reference: AI Backport of /tmp/backport_candidates/2.0/hvloader/CVE-2025-69419
+---
+ .../Library/OpensslLib/openssl/crypto/pkcs12/p12_decr.c     | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_decr.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_decr.c
+index 3c860584..bb9491c0 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_decr.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_decr.c
+@@ -88,6 +88,12 @@ void *PKCS12_item_decrypt_d2i(const X509_ALGOR *algor, const ASN1_ITEM *it,
+     void *ret;
+     int outlen;
+
++
++    if (oct == NULL) {
++        PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I, ERR_R_PASSED_NULL_PARAMETER);
++        return NULL;
++    }
++
+     if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length,
+                           &out, &outlen, 0)) {
+         PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I,
+-- 
+2.45.4
+
diff --git a/SPECS/hvloader/CVE-2026-22795.patch b/SPECS/hvloader/CVE-2026-22795.patch
@@ -0,0 +1,77 @@
+From c2151a35df7c6cf2982a2ff77a8446728bcd1790 Mon Sep 17 00:00:00 2001
+From: Bob Beck <beck@openssl.org>
+Date: Wed, 7 Jan 2026 11:29:48 -0700
+Subject: [PATCH] Ensure ASN1 types are checked before use.
+
+Some of these were fixed by LibreSSL in commit https://github.com/openbsd/src/commit/aa1f637d454961d22117b4353f98253e984b3ba8
+this fix includes the other fixes in that commit, as well as fixes for others found by a scan
+for a similar unvalidated access paradigm in the tree.
+
+Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
+Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
+Reviewed-by: Tomas Mraz <tomas@openssl.org>
+(Merged from https://github.com/openssl/openssl/pull/29582)
+
+Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
+Upstream-reference: https://github.com/openssl/openssl/commit/572844beca95068394c916626a6d3a490f831a49.patch
+---
+ CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c   |  3 ++-
+ .../OpensslLib/openssl/crypto/pkcs12/p12_kiss.c        | 10 ++++++++--
+ .../Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c |  2 ++
+ 3 files changed, 12 insertions(+), 3 deletions(-)
+
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c b/CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c
+index 00effc80..6e8cc6e9 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/apps/s_client.c
+@@ -2698,8 +2698,9 @@ int s_client_main(int argc, char **argv)
+                 goto end;
+             }
+             atyp = ASN1_generate_nconf(genstr, cnf);
+-            if (atyp == NULL) {
++        if (atyp == NULL || atyp->type != V_ASN1_SEQUENCE) {
+                 NCONF_free(cnf);
++            ASN1_TYPE_free(atyp);
+                 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
+                 goto end;
+             }
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_kiss.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_kiss.c
+index 7ab98385..d90404dd 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_kiss.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs12/p12_kiss.c
+@@ -183,11 +183,17 @@ static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen,
+     ASN1_BMPSTRING *fname = NULL;
+     ASN1_OCTET_STRING *lkid = NULL;
+
+-    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_friendlyName)))
++    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_friendlyName))) {
++        if (attrib->type != V_ASN1_BMPSTRING)
++            return 0;
+         fname = attrib->value.bmpstring;
++    }
+
+-    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_localKeyID)))
++    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_localKeyID))) {
++        if (attrib->type != V_ASN1_OCTET_STRING)
++            return 0;
+         lkid = attrib->value.octet_string;
++    }
+
+     switch (PKCS12_SAFEBAG_get_nid(bag)) {
+     case NID_keyBag:
+diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c
+index f63fbc50..4e0eb1e8 100644
+--- a/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c
++++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/pkcs7/pk7_doit.c
+@@ -1092,6 +1092,8 @@ ASN1_OCTET_STRING *PKCS7_digest_from_attributes(STACK_OF(X509_ATTRIBUTE) *sk)
+     ASN1_TYPE *astype;
+     if ((astype = get_attribute(sk, NID_pkcs9_messageDigest)) == NULL)
+         return NULL;
++    if (astype->type != V_ASN1_OCTET_STRING)
++        return NULL;
+     return astype->value.octet_string;
+ }
+
+-- 
+2.45.4
+
diff --git a/SPECS/hvloader/hvloader.spec b/SPECS/hvloader/hvloader.spec
@@ -4,7 +4,7 @@
 Summary:        HvLoader.efi is an EFI application for loading an external hypervisor loader.
 Name:           hvloader
 Version:        1.0.1
-Release:        16%{?dist}
+Release:        17%{?dist}
 License:        MIT
 Vendor:         Microsoft Corporation
 Distribution:   Mariner
@@ -37,6 +37,10 @@ Patch19:        CVE-2024-38796.patch
 Patch20:        CVE-2025-3770.patch
 Patch21:        CVE-2025-2296.patch
 Patch22:        CVE-2025-2295.patch
+Patch23:        CVE-2025-69419.patch
+Patch24:        CVE-2025-69420.patch
+Patch25:        CVE-2025-69421.patch
+Patch26:        CVE-2026-22795.patch
 
 BuildRequires:  bc
 BuildRequires:  gcc
@@ -82,6 +86,9 @@ cp ./Build/MdeModule/RELEASE_GCC5/X64/MdeModulePkg/Application/%{name_github}-%{
 /boot/efi/HvLoader.efi
 
 %changelog
+* Mon Feb 09 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 1.0.1-17
+- Patch for CVE-2026-22795, CVE-2025-69421, CVE-2025-69420, CVE-2025-69419
+
 * Tue Jan 06 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 1.0.1-16
 - Patch for CVE-2025-2295